1 00:00:07,829 --> 00:00:05,829 good afternoon it's a pleasure to 2 00:00:10,150 --> 00:00:07,839 welcome you all to our session on flight 3 00:00:12,390 --> 00:00:10,160 test and flight research uh one of the 4 00:00:14,709 --> 00:00:12,400 critical areas in which the naca 5 00:00:17,670 --> 00:00:14,719 established a notable 6 00:00:18,950 --> 00:00:17,680 history and a legacy that we with today 7 00:00:20,790 --> 00:00:18,960 we have a distinguished panel of 8 00:00:22,630 --> 00:00:20,800 speakers here on various aspects of this 9 00:00:24,710 --> 00:00:22,640 question and i would like to begin with 10 00:00:26,630 --> 00:00:24,720 the first of them robert curry robert 11 00:00:29,349 --> 00:00:26,640 curry will be speaking with us on 12 00:00:33,030 --> 00:00:29,359 conducting research in flight he is a 13 00:00:35,110 --> 00:00:33,040 korea-dryden individual who has 14 00:00:36,870 --> 00:00:35,120 both functioned on the the practice of 15 00:00:39,270 --> 00:00:36,880 of aerospace engineering and in the 16 00:00:40,389 --> 00:00:39,280 history his findings on topics that 17 00:00:42,229 --> 00:00:40,399 include 18 00:00:44,310 --> 00:00:42,239 oblique aircraft ground effect 19 00:00:46,470 --> 00:00:44,320 hypersonic flight flight tech flight 20 00:00:48,869 --> 00:00:46,480 test technique development uh published 21 00:00:50,470 --> 00:00:48,879 in over two dozen reports and papers he 22 00:00:52,150 --> 00:00:50,480 served as chief of the aerodynamics 23 00:00:54,790 --> 00:00:52,160 branch of dryden and is director of 24 00:00:57,750 --> 00:00:54,800 airborne sciences before retiring in 25 00:01:14,550 --> 00:00:57,760 2014 as the center's chief scientist bob 26 00:01:18,310 --> 00:01:16,630 so testing has always been an essential 27 00:01:21,030 --> 00:01:18,320 part of aviation 28 00:01:23,270 --> 00:01:21,040 and it demands a lot of respect and a 29 00:01:25,590 --> 00:01:23,280 great deal of discipline whether or not 30 00:01:28,630 --> 00:01:25,600 you're engaging in flight tests to 31 00:01:31,590 --> 00:01:28,640 validate proper maintenance or to 32 00:01:33,670 --> 00:01:31,600 certify a new design or to demonstrate 33 00:01:35,510 --> 00:01:33,680 advanced technologies 34 00:01:37,270 --> 00:01:35,520 and most people when they think of nasa 35 00:01:38,469 --> 00:01:37,280 and flight tests will associate with the 36 00:01:39,749 --> 00:01:38,479 idea of 37 00:01:41,590 --> 00:01:39,759 advanced test 38 00:01:44,950 --> 00:01:41,600 technology demonstration and of course 39 00:01:48,149 --> 00:01:44,960 this is an important aspect of 40 00:01:50,310 --> 00:01:48,159 aviation and nasa naca and other 41 00:01:51,830 --> 00:01:50,320 research and development organizations 42 00:01:54,230 --> 00:01:51,840 performed that sort of flight 43 00:01:55,910 --> 00:01:54,240 demonstration but today i'd like to 44 00:01:57,749 --> 00:01:55,920 focus on another 45 00:02:00,469 --> 00:01:57,759 aspect of flight test that's a little 46 00:02:02,630 --> 00:02:00,479 more uniquely associated with 47 00:02:04,230 --> 00:02:02,640 with naca and nasa 48 00:02:06,389 --> 00:02:04,240 and that is the idea of conducting 49 00:02:08,550 --> 00:02:06,399 scientific experiments 50 00:02:11,589 --> 00:02:08,560 in flight in order to advance the basic 51 00:02:13,510 --> 00:02:11,599 understanding of aeronautics 52 00:02:15,190 --> 00:02:13,520 and admittedly 53 00:02:17,110 --> 00:02:15,200 the difference between 54 00:02:19,430 --> 00:02:17,120 fundamental flight research 55 00:02:21,110 --> 00:02:19,440 and technology demonstration and flight 56 00:02:23,750 --> 00:02:21,120 can be confusing 57 00:02:26,229 --> 00:02:23,760 and dwelling on subtle distinctions can 58 00:02:29,270 --> 00:02:26,239 seem a little pedantic in some ways but 59 00:02:31,270 --> 00:02:29,280 i think of this centennial celebration 60 00:02:31,990 --> 00:02:31,280 it's important to draw some attention to 61 00:02:33,670 --> 00:02:32,000 it 62 00:02:36,070 --> 00:02:33,680 largely because naca played such an 63 00:02:38,390 --> 00:02:36,080 important role in developing the concept 64 00:02:39,910 --> 00:02:38,400 and the methodologies and also i think 65 00:02:42,550 --> 00:02:39,920 the distinction is going to become 66 00:02:44,470 --> 00:02:42,560 important as we look forward into into 67 00:02:45,350 --> 00:02:44,480 future projects 68 00:02:54,229 --> 00:02:45,360 um 69 00:02:59,270 --> 00:02:56,470 fundamental flight research experiments 70 00:03:01,670 --> 00:02:59,280 is to advance basic understanding 71 00:03:04,390 --> 00:03:01,680 largely through the validation 72 00:03:06,949 --> 00:03:04,400 of design tools that are then applied to 73 00:03:08,390 --> 00:03:06,959 next generations of airplanes 74 00:03:10,470 --> 00:03:08,400 and so 75 00:03:13,670 --> 00:03:10,480 flight research is inherently a high 76 00:03:15,430 --> 00:03:13,680 risk venture from a business perspective 77 00:03:17,830 --> 00:03:15,440 but on the other hand that makes it well 78 00:03:20,270 --> 00:03:17,840 suited for government sponsorship in 79 00:03:22,869 --> 00:03:20,280 that the results are typically 80 00:03:25,750 --> 00:03:22,879 pre-competitive they generally serve to 81 00:03:27,350 --> 00:03:25,760 raise the understanding for the entire 82 00:03:29,670 --> 00:03:27,360 industry rather than benefit a 83 00:03:31,270 --> 00:03:29,680 particular company or segment of the 84 00:03:33,030 --> 00:03:31,280 industry 85 00:03:34,949 --> 00:03:33,040 and 86 00:03:36,149 --> 00:03:34,959 flight research is also characterized by 87 00:03:38,550 --> 00:03:36,159 the need for 88 00:03:41,190 --> 00:03:38,560 scientific rigor in the performance 89 00:03:43,270 --> 00:03:41,200 whereas technology demonstrations can 90 00:03:45,750 --> 00:03:43,280 largely focus on 91 00:03:47,990 --> 00:03:45,760 measuring the actual characteristics of 92 00:03:50,550 --> 00:03:48,000 a vehicle in flight the integrated 93 00:03:53,509 --> 00:03:50,560 characteristics of a vehicle in flight 94 00:03:56,229 --> 00:03:53,519 flight research requires understanding 95 00:03:59,429 --> 00:03:56,239 the underlying physical processes 96 00:04:01,670 --> 00:03:59,439 suitable for design tool validation 97 00:04:04,149 --> 00:04:01,680 and so between this uh importance of a 98 00:04:06,789 --> 00:04:04,159 scientific orientation and the 99 00:04:08,710 --> 00:04:06,799 management of high risk uh nacos 100 00:04:11,190 --> 00:04:08,720 particularly well suited 101 00:04:13,429 --> 00:04:11,200 for its uh development 102 00:04:15,990 --> 00:04:13,439 i'd like to uh give a few aspects of the 103 00:04:17,830 --> 00:04:16,000 x1 project by way of example 104 00:04:19,270 --> 00:04:17,840 it's a landmark airplane that we're all 105 00:04:20,150 --> 00:04:19,280 familiar with 106 00:04:21,909 --> 00:04:20,160 and 107 00:04:24,710 --> 00:04:21,919 although many people will always think 108 00:04:26,230 --> 00:04:24,720 of the x1 as a kind of technology 109 00:04:28,710 --> 00:04:26,240 demonstrator 110 00:04:31,189 --> 00:04:28,720 meant to prove that supersonic flight 111 00:04:32,710 --> 00:04:31,199 was possible i think most of us here 112 00:04:35,830 --> 00:04:32,720 recognize that the 113 00:04:40,710 --> 00:04:38,310 out of a already established 114 00:04:42,390 --> 00:04:40,720 research effort that included 115 00:04:45,030 --> 00:04:42,400 theoretical analysis ground 116 00:04:47,030 --> 00:04:45,040 experimentation and even observations 117 00:04:49,189 --> 00:04:47,040 from high-speed flight 118 00:04:50,390 --> 00:04:49,199 but research into the phenomena was 119 00:04:52,550 --> 00:04:50,400 slowed down 120 00:04:53,909 --> 00:04:52,560 by the recognized fact that wind tunnels 121 00:04:55,990 --> 00:04:53,919 of the day 122 00:04:58,310 --> 00:04:56,000 did not accurately simulate transonic 123 00:05:00,870 --> 00:04:58,320 conditions and so the motivation behind 124 00:05:03,909 --> 00:05:00,880 the x1 was not so much to prove 125 00:05:06,390 --> 00:05:03,919 supersonic capability but to provide a 126 00:05:08,710 --> 00:05:06,400 laboratory for 127 00:05:11,029 --> 00:05:08,720 understanding for conducting controlled 128 00:05:12,390 --> 00:05:11,039 methodical experiments much like you 129 00:05:15,430 --> 00:05:12,400 might have preferred to do in a wind 130 00:05:16,950 --> 00:05:15,440 tunnel had it been available 131 00:05:18,070 --> 00:05:16,960 so 132 00:05:20,390 --> 00:05:18,080 there are 133 00:05:22,230 --> 00:05:20,400 many interesting back stories behind 134 00:05:24,469 --> 00:05:22,240 almost all of the design decisions that 135 00:05:27,189 --> 00:05:24,479 went into the x1 but these have been 136 00:05:30,390 --> 00:05:27,199 detailed in uh in several very excellent 137 00:05:32,310 --> 00:05:30,400 histories and so i won't review uh 138 00:05:33,430 --> 00:05:32,320 the the in the ins and outs of the 139 00:05:35,670 --> 00:05:33,440 process 140 00:05:37,590 --> 00:05:35,680 but i'd like to emphasize 141 00:05:40,070 --> 00:05:37,600 that the final decisions were always 142 00:05:41,350 --> 00:05:40,080 based on optimizing the research 143 00:05:42,950 --> 00:05:41,360 capability 144 00:05:45,270 --> 00:05:42,960 of the airplane 145 00:05:48,230 --> 00:05:45,280 all of the participating organizations 146 00:05:50,390 --> 00:05:48,240 came to accept that the x1 would be a 147 00:05:52,469 --> 00:05:50,400 pure research vehicle and not a 148 00:05:55,909 --> 00:05:52,479 prototype or a pathfinder 149 00:05:58,629 --> 00:05:55,919 toward a operational airplane 150 00:06:01,189 --> 00:05:58,639 the x1 ended up with a rocket engine to 151 00:06:03,270 --> 00:06:01,199 assure that it had access to the entire 152 00:06:04,390 --> 00:06:03,280 flight regime of interest 153 00:06:12,070 --> 00:06:04,400 and 154 00:06:13,590 --> 00:06:12,080 maximize the amount of time it had on in 155 00:06:16,390 --> 00:06:13,600 the test conditions 156 00:06:19,350 --> 00:06:16,400 both these decisions clearly depart from 157 00:06:21,830 --> 00:06:19,360 fleet-like aircraft operations 158 00:06:24,070 --> 00:06:21,840 the decision to use an unswept wing is 159 00:06:25,670 --> 00:06:24,080 interesting because it came at a time 160 00:06:27,909 --> 00:06:25,680 when it was already clear that swept 161 00:06:29,510 --> 00:06:27,919 wings uh had a lot of advantage for 162 00:06:31,510 --> 00:06:29,520 high-speed flight 163 00:06:33,110 --> 00:06:31,520 but despite knowing that a swept wing 164 00:06:36,870 --> 00:06:33,120 might have increased the form 165 00:06:38,469 --> 00:06:36,880 performance of the x1 166 00:06:40,309 --> 00:06:38,479 swept wings were still considered a 167 00:06:43,189 --> 00:06:40,319 developmental technology 168 00:06:44,950 --> 00:06:43,199 and so thinking like experimentalists it 169 00:06:47,510 --> 00:06:44,960 made perfect sense 170 00:06:50,230 --> 00:06:47,520 to use a conventional or unswept wing 171 00:06:52,550 --> 00:06:50,240 for this initial transonic research 172 00:06:54,550 --> 00:06:52,560 rather than risk confusing 173 00:06:56,629 --> 00:06:54,560 the findings with uh with other 174 00:06:59,670 --> 00:06:56,639 uncertainties 175 00:07:02,070 --> 00:06:59,680 the decision to give over the entire 176 00:07:04,790 --> 00:07:02,080 payload to instrumentation speaks for 177 00:07:07,830 --> 00:07:04,800 itself as it precluded any other 178 00:07:10,469 --> 00:07:07,840 military utility uh demonstrations 179 00:07:13,029 --> 00:07:10,479 and the resulting instrumentation was on 180 00:07:14,710 --> 00:07:13,039 the order of 500 pounds clearly more 181 00:07:17,029 --> 00:07:14,720 than would be needed to safely fly the 182 00:07:19,350 --> 00:07:17,039 airplane or to or to demonstrate 183 00:07:22,950 --> 00:07:19,360 supersonic flight 184 00:07:24,629 --> 00:07:22,960 but the researchers realized that the 185 00:07:27,189 --> 00:07:24,639 but the researchers realized that it was 186 00:07:28,790 --> 00:07:27,199 these detailed flight measurements that 187 00:07:31,110 --> 00:07:28,800 were the reason for the project in the 188 00:07:33,270 --> 00:07:31,120 first place the flight data were 189 00:07:35,589 --> 00:07:33,280 available for validation of the first 190 00:07:36,550 --> 00:07:35,599 large-scale ventilated throat wind 191 00:07:41,029 --> 00:07:36,560 tunnel 192 00:07:43,350 --> 00:07:41,039 the next era and the payoff 193 00:07:45,029 --> 00:07:43,360 of the x1 was not in a near-term 194 00:07:46,629 --> 00:07:45,039 military derivative 195 00:07:48,869 --> 00:07:46,639 but instead it came in the form of 196 00:07:50,550 --> 00:07:48,879 validated design tools 197 00:07:52,550 --> 00:07:50,560 uh in reliance 198 00:07:54,469 --> 00:07:52,560 that enabled reliable development of 199 00:08:01,270 --> 00:07:54,479 high-speed aircraft for 200 00:08:01,280 --> 00:08:04,309 um 201 00:08:08,629 --> 00:08:05,990 in this flight test mentality this 202 00:08:10,950 --> 00:08:08,639 flight research mentality carried over 203 00:08:14,230 --> 00:08:10,960 for many decades and i've shown here a 204 00:08:16,550 --> 00:08:14,240 fairly crude and not comprehensive 205 00:08:18,710 --> 00:08:16,560 uh list of flight research projects 206 00:08:19,830 --> 00:08:18,720 since the x1 and i really i restricted 207 00:08:21,189 --> 00:08:19,840 the list 208 00:08:23,430 --> 00:08:21,199 to large 209 00:08:24,390 --> 00:08:23,440 and complex projects suitable for 210 00:08:25,830 --> 00:08:24,400 government 211 00:08:28,469 --> 00:08:25,840 involvement 212 00:08:31,270 --> 00:08:28,479 and more particularly to uh flight 213 00:08:33,350 --> 00:08:31,280 projects that involved a configuration 214 00:08:35,829 --> 00:08:33,360 a configuration that had no practical 215 00:08:37,909 --> 00:08:35,839 value other than to collect long shelf 216 00:08:40,230 --> 00:08:37,919 life research data 217 00:08:42,149 --> 00:08:40,240 as you can see it's a fairly steady 218 00:08:43,750 --> 00:08:42,159 stream of projects that fall into all 219 00:08:45,590 --> 00:08:43,760 flight regimes 220 00:08:47,829 --> 00:08:45,600 if you study the details you'll see some 221 00:08:49,910 --> 00:08:47,839 of the projects were not led by nasa but 222 00:08:51,910 --> 00:08:49,920 most were and clearly the nasa 223 00:08:53,750 --> 00:08:51,920 aeronautics centers played a big role in 224 00:08:56,230 --> 00:08:53,760 all of these projects 225 00:08:58,150 --> 00:08:56,240 and this represents a huge body of work 226 00:08:59,590 --> 00:08:58,160 over the years 227 00:09:01,590 --> 00:08:59,600 before leaving the chart i'd like to 228 00:09:03,750 --> 00:09:01,600 point out that each of these projects 229 00:09:05,509 --> 00:09:03,760 became a flight experiment 230 00:09:07,590 --> 00:09:05,519 because there was some concern about 231 00:09:10,070 --> 00:09:07,600 whether ground facilities would provide 232 00:09:12,790 --> 00:09:10,080 misleading or erroneous results as in 233 00:09:18,150 --> 00:09:12,800 the case of the x1 234 00:09:21,110 --> 00:09:19,430 and 235 00:09:22,550 --> 00:09:21,120 it's important to recognize that all 236 00:09:24,470 --> 00:09:22,560 through this period 237 00:09:26,870 --> 00:09:24,480 wind tunnels have remained the preferred 238 00:09:28,949 --> 00:09:26,880 laboratory for aeronautics research 239 00:09:30,870 --> 00:09:28,959 after all they they offer the advantage 240 00:09:33,190 --> 00:09:30,880 of working with models that are smaller 241 00:09:35,430 --> 00:09:33,200 and simpler than aircraft and since the 242 00:09:37,430 --> 00:09:35,440 models are held fixed in the flow field 243 00:09:38,710 --> 00:09:37,440 it's much easier to isolate research 244 00:09:40,949 --> 00:09:38,720 variables 245 00:09:43,110 --> 00:09:40,959 however there are certain aspects of a 246 00:09:45,750 --> 00:09:43,120 full-scale vehicle in flight in the 247 00:09:48,710 --> 00:09:45,760 natural atmosphere that simply can't be 248 00:09:51,030 --> 00:09:48,720 replicated in any ground test facility 249 00:09:52,550 --> 00:09:51,040 and i'm not referring to unknown 250 00:09:55,590 --> 00:09:52,560 unknowns or 251 00:09:58,870 --> 00:09:55,600 uh debugging gremlins in the system but 252 00:10:00,150 --> 00:09:58,880 very specific physical characteristics 253 00:10:02,069 --> 00:10:00,160 and i've 254 00:10:04,470 --> 00:10:02,079 summarized some of them on 255 00:10:07,509 --> 00:10:04,480 on this chart here and i'd like to 256 00:10:09,350 --> 00:10:07,519 discuss these limitations briefly today 257 00:10:11,590 --> 00:10:09,360 not to diminish the importance of wind 258 00:10:13,750 --> 00:10:11,600 tunnels but because these limitations 259 00:10:16,470 --> 00:10:13,760 generally serve as a reason that some 260 00:10:18,310 --> 00:10:16,480 research topics simply require flight 261 00:10:20,790 --> 00:10:18,320 experimentation 262 00:10:23,190 --> 00:10:20,800 they may be negligible for some research 263 00:10:25,590 --> 00:10:23,200 topics but they are first order effects 264 00:10:27,750 --> 00:10:25,600 for others and in particular i think of 265 00:10:29,590 --> 00:10:27,760 flight dynamics into unusual 266 00:10:32,550 --> 00:10:29,600 configurations 267 00:10:33,750 --> 00:10:32,560 uh absolute aerodynamic performance 268 00:10:36,389 --> 00:10:33,760 predictions 269 00:10:38,470 --> 00:10:36,399 uh boundary layer characteristics 270 00:10:39,990 --> 00:10:38,480 phenomena that occur a long distance 271 00:10:42,150 --> 00:10:40,000 from an airplane 272 00:10:43,750 --> 00:10:42,160 and uh hypersonic flight 273 00:10:44,829 --> 00:10:43,760 especially when chemical reactions 274 00:10:47,269 --> 00:10:44,839 become 275 00:10:49,110 --> 00:10:47,279 significant but as i said these are 276 00:10:50,550 --> 00:10:49,120 recognized issues that have been studied 277 00:10:52,949 --> 00:10:50,560 for decades 278 00:10:55,190 --> 00:10:52,959 sophisticated test techniques advanced 279 00:10:57,269 --> 00:10:55,200 tunnel configurations and the use of 280 00:11:00,710 --> 00:10:57,279 numerical methods have been highly 281 00:11:02,710 --> 00:11:00,720 successful in addressing these concerns 282 00:11:04,949 --> 00:11:02,720 many years of experience in correlating 283 00:11:06,310 --> 00:11:04,959 wind tunnel and numerical predictions 284 00:11:08,470 --> 00:11:06,320 with flight data 285 00:11:10,310 --> 00:11:08,480 have been have resulted in a high degree 286 00:11:11,750 --> 00:11:10,320 of confidence in these ground-based 287 00:11:13,590 --> 00:11:11,760 design tools 288 00:11:15,269 --> 00:11:13,600 and this is proven by the efficiency 289 00:11:16,870 --> 00:11:15,279 with which modern aircraft are now 290 00:11:19,030 --> 00:11:16,880 developed 291 00:11:21,509 --> 00:11:19,040 but this confidence is only applicable 292 00:11:23,430 --> 00:11:21,519 to flight regimes and configurations for 293 00:11:25,430 --> 00:11:23,440 which considerable flight experience 294 00:11:27,990 --> 00:11:25,440 already exists 295 00:11:29,829 --> 00:11:28,000 and so as we consider future needs for 296 00:11:31,829 --> 00:11:29,839 flight research we should expect that 297 00:11:33,590 --> 00:11:31,839 the emphasis will go toward 298 00:11:35,590 --> 00:11:33,600 unconventional configurations and 299 00:11:37,030 --> 00:11:35,600 unexplored flight regimes 300 00:11:39,350 --> 00:11:37,040 and this of course still aligns 301 00:11:41,430 --> 00:11:39,360 perfectly with nasa's mission 302 00:11:43,670 --> 00:11:41,440 not so much to develop incremental 303 00:11:44,310 --> 00:11:43,680 improvements to the state of the art but 304 00:11:47,829 --> 00:11:44,320 in 305 00:11:49,350 --> 00:11:47,839 advancements 306 00:11:52,389 --> 00:11:49,360 and so i'd like to mention uh two 307 00:11:56,470 --> 00:11:52,399 research fields that hold great promise 308 00:11:58,150 --> 00:11:56,480 but which may be paced by access to 309 00:12:01,190 --> 00:11:58,160 reliable 310 00:12:05,750 --> 00:12:02,870 and the first is revolutionary 311 00:12:07,910 --> 00:12:05,760 advancements in space transportation 312 00:12:09,829 --> 00:12:07,920 starting in the mid 80s development of 313 00:12:12,470 --> 00:12:09,839 reusable single stage to orbit 314 00:12:14,710 --> 00:12:12,480 technologies and scramjet propulsion 315 00:12:16,389 --> 00:12:14,720 was a national priority 316 00:12:18,230 --> 00:12:16,399 but the focus of that attention was 317 00:12:19,389 --> 00:12:18,240 centered on 318 00:12:21,750 --> 00:12:19,399 singular 319 00:12:24,629 --> 00:12:21,760 all-encompassing flight demonstration 320 00:12:28,310 --> 00:12:24,639 projects in particular the x30 national 321 00:12:29,990 --> 00:12:28,320 aerospace plane and the x-33 322 00:12:31,750 --> 00:12:30,000 and this is where i believe it is uh 323 00:12:33,430 --> 00:12:31,760 still important to distinguish between 324 00:12:35,350 --> 00:12:33,440 the role of advanced 325 00:12:37,350 --> 00:12:35,360 technology flight demonstrators and 326 00:12:40,069 --> 00:12:37,360 fundamental flight research 327 00:12:41,990 --> 00:12:40,079 both the x30 and the x33 would have been 328 00:12:44,389 --> 00:12:42,000 giant leaps forward 329 00:12:46,550 --> 00:12:44,399 by integrating multiple new and emerging 330 00:12:48,629 --> 00:12:46,560 technologies they were expected to 331 00:12:50,470 --> 00:12:48,639 demonstrate full envelope payload 332 00:12:52,470 --> 00:12:50,480 carrying capability 333 00:12:54,870 --> 00:12:52,480 in a form that would have had immediate 334 00:12:56,629 --> 00:12:54,880 and profitable applications 335 00:12:58,069 --> 00:12:56,639 but neither of these projects succeeded 336 00:13:00,310 --> 00:12:58,079 to flight 337 00:13:01,990 --> 00:13:00,320 instead there has been a gradual return 338 00:13:05,190 --> 00:13:02,000 to hypersonic fundamental flight 339 00:13:07,269 --> 00:13:05,200 research in the form of an a very of a 340 00:13:10,310 --> 00:13:07,279 boundary layer transition experiment on 341 00:13:12,949 --> 00:13:10,320 the wing of a pegasus and then the x-43 342 00:13:15,190 --> 00:13:12,959 and x-51 experiments scramjet 343 00:13:20,389 --> 00:13:15,200 experiments 344 00:13:21,990 --> 00:13:20,399 launched boosted by a rocket 345 00:13:25,269 --> 00:13:22,000 for expedience 346 00:13:28,150 --> 00:13:25,279 and they collected data in a restricted 347 00:13:29,670 --> 00:13:28,160 test envelope for a very short duration 348 00:13:31,269 --> 00:13:29,680 but they have provided the first 349 00:13:33,590 --> 00:13:31,279 scramjet 350 00:13:35,590 --> 00:13:33,600 data flight data suitable for 351 00:13:38,230 --> 00:13:35,600 design not for 352 00:13:40,470 --> 00:13:38,240 suitable not for validation of a 353 00:13:42,949 --> 00:13:40,480 practical hypersonic vehicle but for the 354 00:13:45,110 --> 00:13:42,959 design tools that will be needed to 355 00:13:46,550 --> 00:13:45,120 develop such a such a vehicle in the 356 00:13:48,230 --> 00:13:46,560 future 357 00:13:50,230 --> 00:13:48,240 and there are of course many uh 358 00:13:52,870 --> 00:13:50,240 important design problems still to be 359 00:13:55,110 --> 00:13:52,880 addressed before we have airplane-like 360 00:13:56,949 --> 00:13:55,120 space transportation 361 00:13:57,750 --> 00:13:56,959 but many of these problems continue to 362 00:14:00,389 --> 00:13:57,760 still 363 00:14:02,710 --> 00:14:00,399 depend on high enthalpy flow fields 364 00:14:05,590 --> 00:14:02,720 which cannot be fully replicated at 365 00:14:07,829 --> 00:14:05,600 sufficient scale or time duration in any 366 00:14:10,470 --> 00:14:07,839 ground test facility 367 00:14:12,629 --> 00:14:10,480 now turning from the hypersonic problem 368 00:14:15,750 --> 00:14:12,639 flight research may also be an important 369 00:14:18,629 --> 00:14:15,760 step toward performance breakthroughs in 370 00:14:20,230 --> 00:14:18,639 subsonic air transportation 371 00:14:22,710 --> 00:14:20,240 although conventional 372 00:14:24,150 --> 00:14:22,720 tube and wing airliners are amazingly 373 00:14:27,030 --> 00:14:24,160 efficient 374 00:14:30,310 --> 00:14:27,040 research led by nasa indicates that 50 375 00:14:33,110 --> 00:14:30,320 to 70 improvements in fuel use noise and 376 00:14:35,350 --> 00:14:33,120 emissions are still possible 377 00:14:38,150 --> 00:14:35,360 but these benefits are 378 00:14:40,069 --> 00:14:38,160 depend on commitment to revolutionary 379 00:14:42,069 --> 00:14:40,079 new configurations 380 00:14:45,030 --> 00:14:42,079 many concepts are on the table but as 381 00:14:48,389 --> 00:14:45,040 shown in these three examples 382 00:14:50,150 --> 00:14:48,399 all depart drastically from conventional 383 00:14:52,470 --> 00:14:50,160 aircraft design 384 00:14:54,230 --> 00:14:52,480 wing dominated configurations with thick 385 00:14:56,150 --> 00:14:54,240 transonic sections 386 00:14:59,509 --> 00:14:56,160 highly flexible wings and propulsion 387 00:15:01,189 --> 00:14:59,519 systems that have inlets embedded into 388 00:15:03,910 --> 00:15:01,199 thick boundary layers 389 00:15:06,230 --> 00:15:03,920 are all of issues that could be 390 00:15:08,470 --> 00:15:06,240 challenging to adequately represent in 391 00:15:10,790 --> 00:15:08,480 any ground facility 392 00:15:13,750 --> 00:15:10,800 of course before any of these concepts 393 00:15:16,310 --> 00:15:13,760 would enter airline service an optimized 394 00:15:17,670 --> 00:15:16,320 full envelope flight demonstrator will 395 00:15:20,710 --> 00:15:17,680 be needed 396 00:15:22,949 --> 00:15:20,720 but as in the case of hypersonics it may 397 00:15:25,350 --> 00:15:22,959 be premature to build such a complex 398 00:15:27,430 --> 00:15:25,360 prototype into a more fundamental flight 399 00:15:31,749 --> 00:15:27,440 research experiments have validated the 400 00:15:33,829 --> 00:15:31,759 underlying mechanics and design tools 401 00:15:35,749 --> 00:15:33,839 and so the need for flight research will 402 00:15:37,430 --> 00:15:35,759 persist into the future 403 00:15:39,350 --> 00:15:37,440 although such projects will come at a 404 00:15:41,829 --> 00:15:39,360 higher cost than similar wind tunnel 405 00:15:44,069 --> 00:15:41,839 tests i'd like to to wrap up on a more 406 00:15:46,230 --> 00:15:44,079 positive note and point out that 407 00:15:48,150 --> 00:15:46,240 well-designed flight experiments can be 408 00:15:50,069 --> 00:15:48,160 much more affordable than the 409 00:15:52,150 --> 00:15:50,079 comprehensive all-encompassing 410 00:15:54,790 --> 00:15:52,160 technology demonstrators that are 411 00:15:56,790 --> 00:15:54,800 typically envisioned rather than 412 00:15:58,550 --> 00:15:56,800 creating research vehicles that have the 413 00:16:01,430 --> 00:15:58,560 appearance and the full envelope 414 00:16:03,269 --> 00:16:01,440 capability of an operational airplane 415 00:16:07,030 --> 00:16:03,279 research vehicles can be configured 416 00:16:10,310 --> 00:16:07,040 specifically for experimental needs 417 00:16:14,389 --> 00:16:12,550 over the years naca and then nasa have 418 00:16:16,310 --> 00:16:14,399 exploited this fact to conduct 419 00:16:18,069 --> 00:16:16,320 lower-cost experiments largely by 420 00:16:20,069 --> 00:16:18,079 incorporating them onto existing 421 00:16:22,230 --> 00:16:20,079 operational aircraft 422 00:16:24,710 --> 00:16:22,240 high-performance military aircraft are 423 00:16:26,389 --> 00:16:24,720 particularly well suited to this purpose 424 00:16:28,870 --> 00:16:26,399 even for technologies that apply to 425 00:16:31,189 --> 00:16:28,880 entirely different flight regimes 426 00:16:32,470 --> 00:16:31,199 they are robust have a large control 427 00:16:34,470 --> 00:16:32,480 envelope 428 00:16:36,389 --> 00:16:34,480 their excess power allows them to 429 00:16:38,470 --> 00:16:36,399 parametrically vary flight conditions 430 00:16:39,430 --> 00:16:38,480 above and below the flight the design 431 00:16:41,829 --> 00:16:39,440 point 432 00:16:43,430 --> 00:16:41,839 and by operating at a variety of dynamic 433 00:16:45,829 --> 00:16:43,440 pressures in altitude they can even 434 00:16:50,470 --> 00:16:45,839 systematically vary the 435 00:16:52,470 --> 00:16:50,480 viscous characteristics of a problem 436 00:16:57,030 --> 00:16:52,480 air launch 437 00:16:59,749 --> 00:16:57,040 cost of flight experiments that naca and 438 00:17:02,710 --> 00:16:59,759 nasa have exploited for decades 439 00:17:04,710 --> 00:17:02,720 the x1 was air launched from a b-29 and 440 00:17:06,549 --> 00:17:04,720 a similar carrier was used to launch the 441 00:17:08,710 --> 00:17:06,559 d-5582 442 00:17:12,069 --> 00:17:08,720 and the x-2 443 00:17:14,549 --> 00:17:12,079 in the 1950s a b-50 b-52 aircraft were 444 00:17:15,669 --> 00:17:14,559 configured to air launch the x-15 rocket 445 00:17:17,909 --> 00:17:15,679 airplane 446 00:17:20,870 --> 00:17:17,919 and this one-time investment continued 447 00:17:23,669 --> 00:17:20,880 to pay off for decades as a b-52 was 448 00:17:26,549 --> 00:17:23,679 used to support dozens of other entirely 449 00:17:28,710 --> 00:17:26,559 unrelated flight projects 450 00:17:30,630 --> 00:17:28,720 air launch allows researchers to focus 451 00:17:31,750 --> 00:17:30,640 on the experiment in the flight regime 452 00:17:33,590 --> 00:17:31,760 of interest 453 00:17:35,510 --> 00:17:33,600 rather than work through the numerous 454 00:17:38,549 --> 00:17:35,520 and costly design details that are 455 00:17:41,270 --> 00:17:38,559 needed for conventional takeoff and safe 456 00:17:43,270 --> 00:17:41,280 reliable operation through a large 457 00:17:45,830 --> 00:17:43,280 flight envelope 458 00:17:47,110 --> 00:17:45,840 towing offers another option for air 459 00:17:49,029 --> 00:17:47,120 launch 460 00:17:50,070 --> 00:17:49,039 in 1948 461 00:17:55,110 --> 00:17:50,080 naca 462 00:17:56,549 --> 00:17:55,120 air launch an unpowered p-51d 463 00:17:59,110 --> 00:17:56,559 to study wind tunnel to flight 464 00:18:01,110 --> 00:17:59,120 aerodynamic performance relationships 465 00:18:04,070 --> 00:18:01,120 and towing may become a very uh 466 00:18:06,390 --> 00:18:04,080 important test technique in the future 467 00:18:08,230 --> 00:18:06,400 the b-52 was an excellent carrier 468 00:18:10,150 --> 00:18:08,240 airplane for dropping dense vehicles 469 00:18:12,070 --> 00:18:10,160 with high wing loading 470 00:18:13,909 --> 00:18:12,080 but it may not be so appropriate for 471 00:18:15,510 --> 00:18:13,919 launching research vehicles that need to 472 00:18:16,310 --> 00:18:15,520 look more like 473 00:18:21,270 --> 00:18:16,320 the 474 00:18:25,990 --> 00:18:23,029 airline airliner concepts that we 475 00:18:28,070 --> 00:18:26,000 mentioned a few minutes ago 476 00:18:29,830 --> 00:18:28,080 studies into the use of towing and other 477 00:18:31,669 --> 00:18:29,840 more affordable flight test techniques 478 00:18:33,830 --> 00:18:31,679 are in progress now 479 00:18:36,470 --> 00:18:33,840 existing jet transport aircraft have 480 00:18:38,470 --> 00:18:36,480 sufficient thrust to tow very large 481 00:18:40,710 --> 00:18:38,480 research configurations to transonic 482 00:18:42,950 --> 00:18:40,720 speeds and high rental numbers 483 00:18:45,350 --> 00:18:42,960 and recent towing tests with the c-141 484 00:18:47,190 --> 00:18:45,360 and f-106 have demonstrated that the 485 00:18:48,630 --> 00:18:47,200 operational aspects are also quite 486 00:18:49,909 --> 00:18:48,640 manageable 487 00:18:52,150 --> 00:18:49,919 development of a very large 488 00:18:54,870 --> 00:18:52,160 multi-purpose glider which can air 489 00:18:57,750 --> 00:18:54,880 launch larger rocket boosted payloads is 490 00:18:59,990 --> 00:18:57,760 also under study 491 00:19:01,590 --> 00:19:00,000 and so in conclusion flight offers a 492 00:19:03,909 --> 00:19:01,600 unique environment for conducting 493 00:19:05,830 --> 00:19:03,919 fundamental aeronautics research 494 00:19:08,070 --> 00:19:05,840 for certain problems there is absolutely 495 00:19:10,789 --> 00:19:08,080 no substitute for it and enabling this 496 00:19:13,190 --> 00:19:10,799 capability with scientific rigor and 497 00:19:15,270 --> 00:19:13,200 innovative test methodologies has been 498 00:19:17,669 --> 00:19:15,280 an important contribution of naca and 499 00:19:19,190 --> 00:19:17,679 nasa that will be needed as we pursue 500 00:19:27,029 --> 00:19:19,200 revolutionary advancements into the 501 00:19:30,789 --> 00:19:28,630 one of the real pleasures of a 502 00:19:33,350 --> 00:19:30,799 conference like this is seeing so many 503 00:19:35,590 --> 00:19:33,360 uh younger and newer scholars that are 504 00:19:37,590 --> 00:19:35,600 doing uh quite extraordinary work in the 505 00:19:39,909 --> 00:19:37,600 field and we're fortunate to have one 506 00:19:41,430 --> 00:19:39,919 right now dr jeremy kinney he's a 507 00:19:44,070 --> 00:19:41,440 curator right here at the national air 508 00:19:45,750 --> 00:19:44,080 and space museum he's curated numerous 509 00:19:47,669 --> 00:19:45,760 exhibitions and frequently lectured on 510 00:19:49,750 --> 00:19:47,679 aviation history and the history of 511 00:19:52,470 --> 00:19:49,760 technology in general his books include 512 00:19:54,710 --> 00:19:52,480 airplanes the life story of a technology 513 00:19:57,430 --> 00:19:54,720 alaska and the airplane 514 00:19:59,270 --> 00:19:57,440 and the forthcoming the power for flight 515 00:20:01,270 --> 00:19:59,280 nasa's contributions to aircraft 516 00:20:03,590 --> 00:20:01,280 propulsion he has been a collaborator 517 00:20:05,190 --> 00:20:03,600 with jim hanson on the wind and beyond a 518 00:20:07,190 --> 00:20:05,200 documentary journey into the history of 519 00:20:09,909 --> 00:20:07,200 aerodynamics in america he will be 520 00:20:12,149 --> 00:20:09,919 speaking to us on the naca the airplane 521 00:20:16,230 --> 00:20:12,159 propeller in world war ii 522 00:20:16,240 --> 00:20:20,470 thank you very much 523 00:20:24,630 --> 00:20:22,630 it's my pleasure to be here with you 524 00:20:27,669 --> 00:20:24,640 all today to talk about the naca the 525 00:20:28,630 --> 00:20:27,679 airplane propeller in world war ii 526 00:20:30,789 --> 00:20:28,640 during 527 00:20:33,669 --> 00:20:30,799 the world war ii america's arsenal 528 00:20:36,070 --> 00:20:33,679 democracy produced almost 300 000 529 00:20:38,070 --> 00:20:36,080 bombers fighters and trainers and other 530 00:20:39,430 --> 00:20:38,080 types of aircraft to fight a global war 531 00:20:41,190 --> 00:20:39,440 in the air 532 00:20:43,510 --> 00:20:41,200 the overwhelming majority of those 533 00:20:46,230 --> 00:20:43,520 aircraft relied upon propellers to 534 00:20:48,630 --> 00:20:46,240 convert the power of piston engines into 535 00:20:50,390 --> 00:20:48,640 thrust needed for flight 536 00:20:52,149 --> 00:20:50,400 overall american industry produced 537 00:20:55,190 --> 00:20:52,159 approximately seven hundred thousand 538 00:20:57,590 --> 00:20:55,200 propellers for those weapons of war 539 00:20:59,029 --> 00:20:57,600 as part of that production program the 540 00:21:01,029 --> 00:20:59,039 government civilian organization 541 00:21:02,710 --> 00:21:01,039 responsible for aeronautical research 542 00:21:04,710 --> 00:21:02,720 the national advisory committee for 543 00:21:06,630 --> 00:21:04,720 aeronautics the naca 544 00:21:09,590 --> 00:21:06,640 offered both fundamental and applied 545 00:21:13,510 --> 00:21:09,600 solutions to the increased aerodynamic 546 00:21:17,029 --> 00:21:14,710 and this will 547 00:21:18,149 --> 00:21:17,039 cover both the traditional model as well 548 00:21:20,950 --> 00:21:18,159 as the 549 00:21:22,630 --> 00:21:20,960 private public model of world war ii for 550 00:21:25,190 --> 00:21:22,640 the naca 551 00:21:27,190 --> 00:21:25,200 the allies on the axis fought world war 552 00:21:28,789 --> 00:21:27,200 ii with the modern airplanes that 553 00:21:31,669 --> 00:21:28,799 emerged on the aeronautical design 554 00:21:33,830 --> 00:21:31,679 revolution of the 1920s and 30s 555 00:21:35,270 --> 00:21:33,840 in the name of higher faster and farther 556 00:21:38,149 --> 00:21:35,280 an international community of 557 00:21:40,710 --> 00:21:38,159 specialists reinvented the wood strut 558 00:21:43,190 --> 00:21:40,720 and wire braced biplane of world war one 559 00:21:45,029 --> 00:21:43,200 into the all-metal streamlined monoplane 560 00:21:47,270 --> 00:21:45,039 probably most recognized in the form of 561 00:21:48,710 --> 00:21:47,280 the highly successful douglas dc series 562 00:21:52,149 --> 00:21:48,720 of airliners 563 00:21:53,190 --> 00:21:52,159 the dc3 of december 1935 carried 21 564 00:21:55,110 --> 00:21:53,200 people 565 00:21:57,029 --> 00:21:55,120 and became the most popular and reliable 566 00:21:59,909 --> 00:21:57,039 propeller driven airliner in aviation 567 00:22:01,669 --> 00:21:59,919 history the naca's influence on the 568 00:22:03,350 --> 00:22:01,679 modern airliner can be seen in its 569 00:22:06,390 --> 00:22:03,360 advanced wing airfoils and engine 570 00:22:10,950 --> 00:22:09,029 while the dc-3 is the iconic symbol of 571 00:22:12,390 --> 00:22:10,960 this revolution in the sky 572 00:22:15,510 --> 00:22:12,400 there was a simultaneous 573 00:22:18,149 --> 00:22:15,520 transformation in military aircraft 574 00:22:21,430 --> 00:22:18,159 the boeing b-17 flying fortress replete 575 00:22:23,990 --> 00:22:21,440 with naca airfoils represented new 576 00:22:26,390 --> 00:22:24,000 capabilities in strategic bombardment 577 00:22:27,750 --> 00:22:26,400 and what the bomber would do in future 578 00:22:29,830 --> 00:22:27,760 wars 579 00:22:32,149 --> 00:22:29,840 as the aeronautical community made the 580 00:22:33,190 --> 00:22:32,159 commercial and military airplane more 581 00:22:35,430 --> 00:22:33,200 modern 582 00:22:37,350 --> 00:22:35,440 one thing was certain united states 583 00:22:39,270 --> 00:22:37,360 the propeller combined with a piston 584 00:22:41,029 --> 00:22:39,280 engine was a central technology in the 585 00:22:43,190 --> 00:22:41,039 synergy of design 586 00:22:46,070 --> 00:22:43,200 so the question today is what was the 587 00:22:48,230 --> 00:22:46,080 extent of the naca's role in propeller 588 00:22:51,510 --> 00:22:48,240 development 589 00:22:53,830 --> 00:22:51,520 i would like to begin with what the naca 590 00:22:55,750 --> 00:22:53,840 faced in 1915 regarding the state of 591 00:22:57,909 --> 00:22:55,760 propeller development 592 00:23:00,390 --> 00:22:57,919 along with being the first successfully 593 00:23:02,149 --> 00:23:00,400 to develop a practical flying machine 594 00:23:03,669 --> 00:23:02,159 wilbur and orville wright were also the 595 00:23:05,350 --> 00:23:03,679 first to address the propeller from a 596 00:23:07,110 --> 00:23:05,360 theoretical and overall original 597 00:23:08,710 --> 00:23:07,120 standpoint 598 00:23:11,669 --> 00:23:08,720 the rights came to the conclusion during 599 00:23:14,710 --> 00:23:11,679 the winter of 1902 and 1903 that a 600 00:23:16,630 --> 00:23:14,720 propeller was a rotary wing or airfoil 601 00:23:18,310 --> 00:23:16,640 which generated aerodynamic thrust to 602 00:23:20,230 --> 00:23:18,320 achieve propulsion 603 00:23:22,789 --> 00:23:20,240 so the wright successfully designed two 604 00:23:24,950 --> 00:23:22,799 propellers for their 1903 flyer that 605 00:23:26,870 --> 00:23:24,960 were efficient enough to transfer power 606 00:23:28,549 --> 00:23:26,880 from their 12 horsepower internal 607 00:23:31,270 --> 00:23:28,559 combustion engine to achieve powered 608 00:23:36,310 --> 00:23:33,750 a propeller community existed since the 609 00:23:37,830 --> 00:23:36,320 early days of the airplane during the 610 00:23:40,310 --> 00:23:37,840 years proceeding and following the 611 00:23:42,149 --> 00:23:40,320 right's achievement at kitty hawk 612 00:23:43,830 --> 00:23:42,159 aeronautical enthusiasts experimented 613 00:23:45,190 --> 00:23:43,840 with a variety of propeller designs and 614 00:23:46,950 --> 00:23:45,200 materials 615 00:23:48,789 --> 00:23:46,960 the aeronautical community chose to 616 00:23:51,029 --> 00:23:48,799 focus on its improved version of the 617 00:23:53,990 --> 00:23:51,039 rights propeller which had a permanently 618 00:23:55,750 --> 00:23:54,000 set blade angle called fixed pitch and 619 00:23:56,950 --> 00:23:55,760 made from layers of wood 620 00:23:59,350 --> 00:23:56,960 it was cheap 621 00:24:02,230 --> 00:23:59,360 easy to manufacture fit well into the 622 00:24:04,070 --> 00:24:02,240 established design paradigm of keeping 623 00:24:06,549 --> 00:24:04,080 everything in an airplane as light and 624 00:24:08,390 --> 00:24:06,559 simple as possible and most importantly 625 00:24:11,830 --> 00:24:08,400 it worked for the thousands of airplanes 626 00:24:16,830 --> 00:24:15,110 at its first meeting in 1915 the naca 627 00:24:20,230 --> 00:24:16,840 acknowledged that more efficient 628 00:24:22,230 --> 00:24:20,240 propellers able to generate more thrust 629 00:24:23,990 --> 00:24:22,240 for a variety of flight conditions was a 630 00:24:25,510 --> 00:24:24,000 primary challenge facing american 631 00:24:27,430 --> 00:24:25,520 aeronautics 632 00:24:29,269 --> 00:24:27,440 as a result one of the earliest and most 633 00:24:31,110 --> 00:24:29,279 consistently funded programs was 634 00:24:32,789 --> 00:24:31,120 propeller research 635 00:24:36,070 --> 00:24:32,799 until the completion of the langley 636 00:24:38,710 --> 00:24:36,080 memorial aeronautical laboratory in 1920 637 00:24:40,630 --> 00:24:38,720 the naca concentrated its main effort at 638 00:24:42,789 --> 00:24:40,640 stanford university 639 00:24:44,789 --> 00:24:42,799 near palo alto california under the 640 00:24:46,630 --> 00:24:44,799 leadership of professors william f duran 641 00:24:48,789 --> 00:24:46,640 one of the committee members 642 00:24:50,870 --> 00:24:48,799 and everett p leslie 643 00:24:53,350 --> 00:24:50,880 duran and leslie's broad-based study of 644 00:24:55,830 --> 00:24:53,360 propeller performance and entitled 645 00:24:58,789 --> 00:24:55,840 experimental research on air propellers 646 00:25:00,549 --> 00:24:58,799 ran from 1917 to 1922. 647 00:25:02,789 --> 00:25:00,559 this groundbreaking series of 648 00:25:05,269 --> 00:25:02,799 experiments established a standard table 649 00:25:06,710 --> 00:25:05,279 of propeller coefficients available to 650 00:25:09,669 --> 00:25:06,720 designers through mathematical 651 00:25:12,789 --> 00:25:09,679 calculation and wind tunnel studies 652 00:25:15,110 --> 00:25:12,799 noted aerodynamicist max monk asserted 653 00:25:17,350 --> 00:25:15,120 that the naca sponsored stanford 654 00:25:21,029 --> 00:25:17,360 university propeller study was the most 655 00:25:23,269 --> 00:25:21,039 perfect and complete one ever published 656 00:25:25,590 --> 00:25:23,279 as the engineers at langley designed and 657 00:25:27,909 --> 00:25:25,600 constructed the tools for continued work 658 00:25:29,909 --> 00:25:27,919 in aeronautics they were able to make 659 00:25:31,510 --> 00:25:29,919 their own investigations into basic 660 00:25:33,830 --> 00:25:31,520 propeller research 661 00:25:35,750 --> 00:25:33,840 early tests of propeller blade profiles 662 00:25:38,230 --> 00:25:35,760 in the variable density tunnel 663 00:25:41,590 --> 00:25:38,240 however proved unsatisfactory 664 00:25:44,230 --> 00:25:41,600 a 1925 nac report asserted that 665 00:25:46,870 --> 00:25:44,240 researchers could never rely absolutely 666 00:25:49,269 --> 00:25:46,880 upon model data until they verify that 667 00:25:51,430 --> 00:25:49,279 data through full flight tests 668 00:25:54,070 --> 00:25:51,440 the inadequacies of theoretical and 669 00:25:56,390 --> 00:25:54,080 model propeller testing convinced the 670 00:25:58,789 --> 00:25:56,400 committee that the hybridization of full 671 00:26:00,549 --> 00:25:58,799 flight testing with wind tunnel testing 672 00:26:02,950 --> 00:26:00,559 was necessary 673 00:26:05,029 --> 00:26:02,960 what the naca needed was the ability to 674 00:26:07,350 --> 00:26:05,039 test the aerodynamic properties of 675 00:26:09,510 --> 00:26:07,360 full-scale propellers which led to the 676 00:26:12,950 --> 00:26:09,520 construction and design of the propeller 677 00:26:15,669 --> 00:26:12,960 research tunnel in 1927 which became a 678 00:26:18,870 --> 00:26:15,679 seminal tool in propeller analysis and 679 00:26:21,590 --> 00:26:18,880 propulsion airframe integration 680 00:26:23,430 --> 00:26:21,600 now as the naca and its researchers were 681 00:26:25,350 --> 00:26:23,440 finalizing the methodology of the 682 00:26:26,789 --> 00:26:25,360 aerodynamic design and evaluation of 683 00:26:28,789 --> 00:26:26,799 propeller blades 684 00:26:30,390 --> 00:26:28,799 specialists working for other government 685 00:26:31,669 --> 00:26:30,400 research organizations primarily the 686 00:26:33,990 --> 00:26:31,679 army 687 00:26:36,630 --> 00:26:34,000 and industry reinvented the wood fixed 688 00:26:39,430 --> 00:26:36,640 pitch propeller into its modern form 689 00:26:41,269 --> 00:26:39,440 as early as 1918 william f durand 690 00:26:43,510 --> 00:26:41,279 advocated that the development of a 691 00:26:45,669 --> 00:26:43,520 workable variable pitch propeller 692 00:26:47,430 --> 00:26:45,679 capable of changing blade angle and by 693 00:26:49,190 --> 00:26:47,440 extension providing efficiency for 694 00:26:51,590 --> 00:26:49,200 different flight conditions like an 695 00:26:53,830 --> 00:26:51,600 automobile gear shift was of the highest 696 00:26:55,830 --> 00:26:53,840 order report of importance 697 00:26:57,669 --> 00:26:55,840 and outstanding as one of the appliances 698 00:27:02,230 --> 00:26:57,679 for which the art of aerial navigation 699 00:27:07,190 --> 00:27:04,149 the true innovations and propellers in 700 00:27:08,789 --> 00:27:07,200 the 20s late 20s and early 1930s were in 701 00:27:10,390 --> 00:27:08,799 the materials used for the blades 702 00:27:12,310 --> 00:27:10,400 aluminum alloys 703 00:27:13,269 --> 00:27:12,320 and the mechanism for changing blade 704 00:27:16,950 --> 00:27:13,279 pitch 705 00:27:18,630 --> 00:27:16,960 by 1937 hamilton standard and curtis 706 00:27:22,070 --> 00:27:18,640 offered automatic constant speed 707 00:27:24,630 --> 00:27:22,080 propellers to the aeronautical community 708 00:27:26,630 --> 00:27:24,640 so the naca's principal contribution in 709 00:27:28,149 --> 00:27:26,640 the late 1920s and 30s the same 710 00:27:30,630 --> 00:27:28,159 revolutionary moment for the variable 711 00:27:32,870 --> 00:27:30,640 pitch propeller was improved propeller 712 00:27:35,029 --> 00:27:32,880 efficiency at high speeds regardless of 713 00:27:37,510 --> 00:27:35,039 materials or mechanism 714 00:27:39,029 --> 00:27:37,520 as aircraft speeds increased shock waves 715 00:27:41,510 --> 00:27:39,039 and compressibility decreased the 716 00:27:44,389 --> 00:27:41,520 efficiency of the well-known and proven 717 00:27:46,950 --> 00:27:44,399 raf6 and clark wire airfoils at the 718 00:27:49,269 --> 00:27:46,960 blade tips and all along the blade 719 00:27:51,669 --> 00:27:49,279 the naca recognized that efficiencies 720 00:27:53,750 --> 00:27:51,679 dropped to 70 percent as speeds 721 00:27:55,430 --> 00:27:53,760 increased and made propeller development 722 00:27:57,510 --> 00:27:55,440 a major focus 723 00:27:59,350 --> 00:27:57,520 langley sponsored three programs 724 00:28:01,830 --> 00:27:59,360 addressing propeller efficiency 725 00:28:03,510 --> 00:28:01,840 conducted by eastman jacobs and the vdt 726 00:28:05,750 --> 00:28:03,520 fred wike and the propeller research 727 00:28:07,269 --> 00:28:05,760 tunnel on john stack in the 24-inch 728 00:28:11,350 --> 00:28:07,279 high-speed tunnel 729 00:28:12,789 --> 00:28:11,360 in 1934 the naca introduced the 24 730 00:28:15,430 --> 00:28:12,799 family of air force and provided 731 00:28:17,350 --> 00:28:15,440 efficiency at high speeds 732 00:28:19,909 --> 00:28:17,360 continued wind tunnel and flight tests 733 00:28:22,470 --> 00:28:19,919 revealed promising areas of research and 734 00:28:24,149 --> 00:28:22,480 expanding performance centering on blade 735 00:28:26,630 --> 00:28:24,159 air force sections that would offer 736 00:28:28,230 --> 00:28:26,640 higher critical speeds that is the point 737 00:28:30,710 --> 00:28:28,240 where the drag of the blade began to 738 00:28:32,070 --> 00:28:30,720 rapidly increase reducing propeller 739 00:28:34,310 --> 00:28:32,080 efficiency 740 00:28:36,789 --> 00:28:34,320 so the naca announced a new family of 741 00:28:39,590 --> 00:28:36,799 airfoils the 16 series 742 00:28:41,269 --> 00:28:39,600 in 1939 and john stack's important 743 00:28:43,590 --> 00:28:41,279 advanced confidential report that you 744 00:28:46,389 --> 00:28:43,600 see here tests of airfoils designed to 745 00:28:49,110 --> 00:28:46,399 delay the compressibility burble 746 00:28:50,950 --> 00:28:49,120 these thin airfoils facilitated faster 747 00:28:52,630 --> 00:28:50,960 and more efficient blades 748 00:28:55,430 --> 00:28:52,640 and the distribution of the report to 749 00:28:57,750 --> 00:28:55,440 the army navy and manufacturers ensured 750 00:28:59,909 --> 00:28:57,760 the 16 series became the new choice for 751 00:29:01,669 --> 00:28:59,919 high-speed propellers on aircraft 752 00:29:05,590 --> 00:29:01,679 designed for speeds approaching 500 753 00:29:10,070 --> 00:29:07,830 regardless of whether the blade profile 754 00:29:13,669 --> 00:29:10,080 was an raf6 a clark y 755 00:29:15,269 --> 00:29:13,679 or a 16 series naca researchers also 756 00:29:17,350 --> 00:29:15,279 work to refine the aerodynamic 757 00:29:19,190 --> 00:29:17,360 properties of a propeller blade along 758 00:29:21,430 --> 00:29:19,200 its entire length 759 00:29:24,070 --> 00:29:21,440 with airfoil sections called cluffs 760 00:29:26,230 --> 00:29:24,080 cuffs excuse me so what you see here is 761 00:29:27,990 --> 00:29:26,240 a propeller with our young pursuit pilot 762 00:29:29,830 --> 00:29:28,000 in the late interwar period with a 763 00:29:31,510 --> 00:29:29,840 propeller it's very round at the roots 764 00:29:33,190 --> 00:29:31,520 of the blades 765 00:29:34,630 --> 00:29:33,200 that's a compromise because you need 766 00:29:36,549 --> 00:29:34,640 that for structural strength not 767 00:29:37,430 --> 00:29:36,559 aerodynamic efficiency 768 00:29:39,669 --> 00:29:37,440 so 769 00:29:41,909 --> 00:29:39,679 covering that root 770 00:29:44,789 --> 00:29:41,919 with a structure that actually has an 771 00:29:47,990 --> 00:29:44,799 aerodynamic profile increases efficiency 772 00:29:50,470 --> 00:29:48,000 all along the length of the blade 773 00:29:51,350 --> 00:29:50,480 it also provides cooling for a radial 774 00:29:54,310 --> 00:29:51,360 engine 775 00:29:56,389 --> 00:29:54,320 beginning in 1939 as part of the overall 776 00:29:57,510 --> 00:29:56,399 drag reduction program in the full-scale 777 00:29:59,590 --> 00:29:57,520 tunnel 778 00:30:02,389 --> 00:29:59,600 researchers at langley found 779 00:30:05,669 --> 00:30:02,399 that a single-engine fighter that was 780 00:30:08,149 --> 00:30:05,679 theoretically capable 400 miles per hour 781 00:30:11,029 --> 00:30:08,159 could do so with a new blade cuff 782 00:30:13,510 --> 00:30:11,039 installation on that structure 783 00:30:15,510 --> 00:30:13,520 so fabricating cuffs secure covered 45 784 00:30:17,430 --> 00:30:15,520 percent of the structure the blade 785 00:30:19,350 --> 00:30:17,440 increased the blade area enabled a 786 00:30:21,590 --> 00:30:19,360 calculated 400 miles per hour from this 787 00:30:23,750 --> 00:30:21,600 airplane this is an earlier attempt at 788 00:30:27,510 --> 00:30:23,760 that in the full-scale tunnel with a 789 00:30:32,470 --> 00:30:29,669 also to increase thrust 790 00:30:34,149 --> 00:30:32,480 naca researchers investigated wider or 791 00:30:36,470 --> 00:30:34,159 paddle blade 792 00:30:37,350 --> 00:30:36,480 blades that featured a larger cord 793 00:30:39,029 --> 00:30:37,360 length 794 00:30:41,430 --> 00:30:39,039 from leading to trailing edge more 795 00:30:43,350 --> 00:30:41,440 surface area means more thrust 796 00:30:44,950 --> 00:30:43,360 and propeller manufacturers adopted 797 00:30:46,870 --> 00:30:44,960 these innovations as part of their 798 00:30:49,350 --> 00:30:46,880 contribution to the synergistic design 799 00:30:51,909 --> 00:30:49,360 of military aircraft during world war ii 800 00:30:54,070 --> 00:30:51,919 especially after late 1943 801 00:30:56,950 --> 00:30:54,080 the 400 mile per hour north american 802 00:30:58,789 --> 00:30:56,960 p-51 mustang fighter was a refined 803 00:31:00,870 --> 00:30:58,799 war-winning weapon capable of ranging 804 00:31:03,190 --> 00:31:00,880 deep into nazi germany or fighting 805 00:31:05,110 --> 00:31:03,200 imperial japan and china that relied 806 00:31:07,909 --> 00:31:05,120 upon both paddle blades and blade cuffs 807 00:31:10,230 --> 00:31:07,919 for increased performance 808 00:31:13,029 --> 00:31:10,240 cuff propellers also improved the rate 809 00:31:13,909 --> 00:31:13,039 of of climb and the cooling of radial 810 00:31:15,990 --> 00:31:13,919 engine 811 00:31:18,789 --> 00:31:16,000 designed such as the republic p47 812 00:31:20,789 --> 00:31:18,799 thunderbolt who gained an extra 400 feet 813 00:31:22,310 --> 00:31:20,799 per minute climb by the use of cuffs and 814 00:31:24,070 --> 00:31:22,320 paddle blades 815 00:31:26,710 --> 00:31:24,080 and also the boeing b-29 super 816 00:31:28,470 --> 00:31:26,720 fortresses of the 509th composite group 817 00:31:30,549 --> 00:31:28,480 the world's first atomic 818 00:31:33,110 --> 00:31:30,559 bombing force 819 00:31:34,870 --> 00:31:33,120 and their notoriously finicky r3350 820 00:31:37,350 --> 00:31:34,880 radial engines benefited from the use of 821 00:31:39,509 --> 00:31:37,360 cuffs during the war 822 00:31:42,070 --> 00:31:39,519 another innovation was dual rotation or 823 00:31:44,070 --> 00:31:42,080 contra rotation the use of two sets of 824 00:31:46,389 --> 00:31:44,080 propellers connected to one engine and 825 00:31:48,389 --> 00:31:46,399 rotating in opposite directions that 826 00:31:50,149 --> 00:31:48,399 alleviated torque roll of the sideways 827 00:31:52,389 --> 00:31:50,159 direction imparted by the rotation of 828 00:31:54,870 --> 00:31:52,399 one propeller and it maximized the 829 00:31:56,870 --> 00:31:54,880 energy of two propellers 830 00:31:59,590 --> 00:31:56,880 only used on some aircraft langley's 831 00:32:02,789 --> 00:31:59,600 showing this is a new idea that improves 832 00:32:04,710 --> 00:32:02,799 the performance of propellers 833 00:32:07,029 --> 00:32:04,720 during world war ii langley was the 834 00:32:09,110 --> 00:32:07,039 center of the naca study in improving 835 00:32:10,310 --> 00:32:09,120 propellers with high thrust at high 836 00:32:12,230 --> 00:32:10,320 speeds 837 00:32:14,789 --> 00:32:12,240 in addition to the work on cuffs paddle 838 00:32:16,870 --> 00:32:14,799 blades and contra rotating propellers 839 00:32:19,430 --> 00:32:16,880 the naca and its research staff 840 00:32:20,950 --> 00:32:19,440 succeeded in reducing rpm while 841 00:32:23,830 --> 00:32:20,960 increasing horsepower speed and 842 00:32:27,830 --> 00:32:23,840 efficiency overall from 84 percent in 843 00:32:30,310 --> 00:32:27,840 1930 to 90 percent by 1945 and the 844 00:32:33,190 --> 00:32:30,320 majority of this work took place in the 845 00:32:34,950 --> 00:32:33,200 8 and 16 foot high-speed tunnels under 846 00:32:36,470 --> 00:32:34,960 the direction of john stack 847 00:32:38,789 --> 00:32:36,480 melvin gough and conducted a 848 00:32:40,470 --> 00:32:38,799 simultaneous flight research program 849 00:32:41,909 --> 00:32:40,480 and theodore theodorsen and his 850 00:32:43,909 --> 00:32:41,919 colleagues in the physical research 851 00:32:45,830 --> 00:32:43,919 division investigated vibration and 852 00:32:48,630 --> 00:32:45,840 flutter 853 00:32:50,149 --> 00:32:48,640 as the work proceeded at langley 854 00:32:52,230 --> 00:32:50,159 surrounded by representatives of the 855 00:32:54,389 --> 00:32:52,240 both the military and industry the 856 00:32:56,070 --> 00:32:54,399 naca's director of aeronautical research 857 00:32:58,870 --> 00:32:56,080 george lewis broke ground for the 858 00:33:01,509 --> 00:32:58,880 committee's new aircraft engine research 859 00:33:03,750 --> 00:33:01,519 laboratory the aerl at cleveland in 860 00:33:06,310 --> 00:33:03,760 january 1941. 861 00:33:08,149 --> 00:33:06,320 the creation of the aerl reflected the 862 00:33:10,630 --> 00:33:08,159 widely held belief that the united 863 00:33:12,710 --> 00:33:10,640 states needed to retain superiority and 864 00:33:14,549 --> 00:33:12,720 aeronautical technology vis-a-vis europe 865 00:33:16,870 --> 00:33:14,559 in the late 1930s and especially in 866 00:33:19,269 --> 00:33:16,880 propulsion 867 00:33:21,669 --> 00:33:19,279 after american entry into the war they 868 00:33:23,509 --> 00:33:21,679 ate aerl with the use of the new 869 00:33:25,830 --> 00:33:23,519 altitude wind tunnel which was the 870 00:33:27,909 --> 00:33:25,840 centerpiece of this new facility they 871 00:33:29,750 --> 00:33:27,919 worked hand-in-hand with government 872 00:33:31,909 --> 00:33:29,760 industry and military 873 00:33:34,549 --> 00:33:31,919 testing and improving existing 874 00:33:37,990 --> 00:33:34,559 technology as well as new designs 875 00:33:40,310 --> 00:33:38,000 what you see here is the massive 876 00:33:42,710 --> 00:33:40,320 douglas sky pirate propulsion system of 877 00:33:44,710 --> 00:33:42,720 a 28 cylinder radial engine and an eight 878 00:33:45,990 --> 00:33:44,720 blade contra rotating propeller system 879 00:33:49,029 --> 00:33:46,000 being tested 880 00:33:51,430 --> 00:33:49,039 and so what the awt was able to do 881 00:33:53,350 --> 00:33:51,440 was replicate a simulated altitude of 882 00:33:55,110 --> 00:33:53,360 thirty thousand feet at four hundred 883 00:33:56,549 --> 00:33:55,120 ninety miles per hour so you can bring 884 00:33:59,509 --> 00:33:56,559 that testing down to the ground and 885 00:34:01,990 --> 00:33:59,519 really focus on that 886 00:34:03,750 --> 00:34:02,000 as world war two raged on and the naca 887 00:34:05,750 --> 00:34:03,760 worked with industry 888 00:34:08,550 --> 00:34:05,760 the naca was completely unaware of the 889 00:34:10,310 --> 00:34:08,560 impending turbo revolution that emerged 890 00:34:11,829 --> 00:34:10,320 in europe with aircraft like the first 891 00:34:12,629 --> 00:34:11,839 practical jet airplane that measures 892 00:34:14,389 --> 00:34:12,639 schmidt 893 00:34:17,270 --> 00:34:14,399 262. 894 00:34:19,270 --> 00:34:17,280 the naca and the american aeronautical 895 00:34:21,030 --> 00:34:19,280 community concentrated on present and 896 00:34:23,349 --> 00:34:21,040 immediate needs that reflected the 897 00:34:26,149 --> 00:34:23,359 dominance of the propeller in the piston 898 00:34:28,149 --> 00:34:26,159 engine as the primary propulsion system 899 00:34:30,629 --> 00:34:28,159 when faced with fighting a global aerial 900 00:34:31,829 --> 00:34:30,639 war the american military embraced the 901 00:34:34,310 --> 00:34:31,839 standard 902 00:34:36,629 --> 00:34:34,320 and wedded it to large scale production 903 00:34:38,389 --> 00:34:36,639 programs to avoid the strategic mistake 904 00:34:40,069 --> 00:34:38,399 of putting too much emphasis on new 905 00:34:42,310 --> 00:34:40,079 technologies that would only be 906 00:34:44,710 --> 00:34:42,320 practical in the long term and after 907 00:34:46,069 --> 00:34:44,720 costly research and development 908 00:34:48,710 --> 00:34:46,079 not immediately on the aerial 909 00:34:50,790 --> 00:34:48,720 battlefields around the world 910 00:34:52,550 --> 00:34:50,800 but with the war over 911 00:34:54,230 --> 00:34:52,560 the aeronautical community was at a 912 00:34:55,510 --> 00:34:54,240 crossroads during the early days of the 913 00:34:57,349 --> 00:34:55,520 cold war 914 00:34:59,270 --> 00:34:57,359 would it continue with propeller driven 915 00:35:00,790 --> 00:34:59,280 piston engine aircraft or go with the 916 00:35:02,550 --> 00:35:00,800 new technology 917 00:35:04,870 --> 00:35:02,560 and there were multiple alternatives 918 00:35:06,150 --> 00:35:04,880 including the turbo prop a combination 919 00:35:08,470 --> 00:35:06,160 of a gas turbine engine with the 920 00:35:10,710 --> 00:35:08,480 propeller 921 00:35:13,349 --> 00:35:10,720 nevertheless the apparent primacy of the 922 00:35:16,310 --> 00:35:13,359 turbojet led one popular aviation writer 923 00:35:17,750 --> 00:35:16,320 to ask in early 1948 has the propeller a 924 00:35:20,310 --> 00:35:17,760 future 925 00:35:22,150 --> 00:35:20,320 back to fundamental research the naca 926 00:35:24,230 --> 00:35:22,160 and the propeller community conducted 927 00:35:26,390 --> 00:35:24,240 numerous wind tunnel and flight research 928 00:35:27,670 --> 00:35:26,400 experiments to see if they could provide 929 00:35:29,589 --> 00:35:27,680 the answer 930 00:35:30,630 --> 00:35:29,599 such promising programs appeared to be 931 00:35:32,710 --> 00:35:30,640 futile 932 00:35:35,589 --> 00:35:32,720 in the early days of the jet age at a 933 00:35:37,990 --> 00:35:35,599 1949 naca conference on transonic 934 00:35:39,829 --> 00:35:38,000 aircraft design a hamilton standard 935 00:35:41,270 --> 00:35:39,839 engineer having just reported on the 936 00:35:43,829 --> 00:35:41,280 results of wind tunnel tests on a 937 00:35:46,230 --> 00:35:43,839 supersonic propeller for a u.s air force 938 00:35:48,710 --> 00:35:46,240 contract remarked that compared to a jet 939 00:35:51,510 --> 00:35:48,720 engine even if the propeller is good it 940 00:35:56,710 --> 00:35:54,550 one focus that was pursued was 941 00:35:57,589 --> 00:35:56,720 developing supersonic propellers capable 942 00:36:00,069 --> 00:35:57,599 of 943 00:36:02,630 --> 00:36:00,079 taking long-range transport aircraft 944 00:36:05,030 --> 00:36:02,640 into the transonic regime from mach 0.8 945 00:36:06,670 --> 00:36:05,040 to mach 1.2 946 00:36:09,349 --> 00:36:06,680 during the second aeronautical 947 00:36:11,349 --> 00:36:09,359 revolution that's happening now 948 00:36:14,550 --> 00:36:11,359 in europe and north america 949 00:36:17,349 --> 00:36:14,560 at the langley laboratory naca engineers 950 00:36:19,030 --> 00:36:17,359 created a propeller research airplane by 951 00:36:21,030 --> 00:36:19,040 installing an aero products propeller 952 00:36:24,150 --> 00:36:21,040 and a turboprop engine in the nodes of 953 00:36:27,030 --> 00:36:24,160 the mcdonnell xf-88b testbed 954 00:36:30,390 --> 00:36:27,040 the flight program ran from 1953 through 955 00:36:32,870 --> 00:36:30,400 1956 and revealed a propeller design 956 00:36:36,550 --> 00:36:32,880 that was 79 percent efficient at a speed 957 00:36:40,069 --> 00:36:38,630 the aranachal community though faced 958 00:36:42,710 --> 00:36:40,079 many development problems with 959 00:36:44,390 --> 00:36:42,720 supersonic propellers in the 1950s 960 00:36:46,710 --> 00:36:44,400 which seemed 961 00:36:48,550 --> 00:36:46,720 unnecessary if jet technology provided 962 00:36:50,230 --> 00:36:48,560 equal or better performance 963 00:36:52,950 --> 00:36:50,240 a major challenge 964 00:36:55,750 --> 00:36:52,960 was reducing the noise of 965 00:36:57,829 --> 00:36:55,760 the shock waves at the blade tips 966 00:36:59,670 --> 00:36:57,839 the four blade supersonic air products 967 00:37:02,950 --> 00:36:59,680 propeller on the air force's 968 00:37:05,670 --> 00:37:02,960 experimental or xf-84h 969 00:37:07,510 --> 00:37:05,680 generated such mediocre performance and 970 00:37:09,589 --> 00:37:07,520 high-intensity noise and resonant 971 00:37:10,550 --> 00:37:09,599 effects that are rendered by standard 972 00:37:12,870 --> 00:37:10,560 sick 973 00:37:15,670 --> 00:37:12,880 but the naca testing that propeller in 974 00:37:18,150 --> 00:37:15,680 the 16-foot tunnel 975 00:37:20,710 --> 00:37:18,160 was trying to work towards improving it 976 00:37:23,270 --> 00:37:20,720 but by 1957 977 00:37:25,750 --> 00:37:23,280 seeing that there are more avenues of 978 00:37:27,910 --> 00:37:25,760 pushing higher faster and farther with 979 00:37:29,910 --> 00:37:27,920 the turbojet and the new aircraft of the 980 00:37:32,390 --> 00:37:29,920 second design revolution 981 00:37:34,550 --> 00:37:32,400 the naca 982 00:37:37,589 --> 00:37:34,560 disbanded the long-standing subcommittee 983 00:37:39,670 --> 00:37:37,599 on propellers for aircraft in 1957 and 984 00:37:45,270 --> 00:37:39,680 propellers as a major research area 985 00:37:49,430 --> 00:37:46,870 now the modern airplane and its 986 00:37:52,630 --> 00:37:49,440 propeller reached its apex 987 00:37:54,150 --> 00:37:52,640 as the jet age ushered in a new age for 988 00:37:56,069 --> 00:37:54,160 aviation 989 00:37:58,390 --> 00:37:56,079 commercial and military operators 990 00:38:00,310 --> 00:37:58,400 replaced the propeller and piston engine 991 00:38:01,750 --> 00:38:00,320 with the turbojet engine as the main 992 00:38:03,270 --> 00:38:01,760 form of high performance and 993 00:38:04,710 --> 00:38:03,280 long-distance aircraft propulsion in the 994 00:38:06,550 --> 00:38:04,720 1950s 995 00:38:09,030 --> 00:38:06,560 in an ironic twist of history they 996 00:38:10,870 --> 00:38:09,040 reshaped the cultural perception of the 997 00:38:13,190 --> 00:38:10,880 airplane propeller to be a crude relic 998 00:38:15,510 --> 00:38:13,200 of a past age of aviation that was 999 00:38:17,430 --> 00:38:15,520 neither exceptional nor novel and 1000 00:38:19,349 --> 00:38:17,440 perhaps above all else 1001 00:38:21,990 --> 00:38:19,359 justifiably forgotten in the progress 1002 00:38:24,069 --> 00:38:22,000 driven history and memory of flight 1003 00:38:26,069 --> 00:38:24,079 nevertheless the specialists and 1004 00:38:28,310 --> 00:38:26,079 propeller-driven aircraft including a 1005 00:38:31,109 --> 00:38:28,320 new generation of turboprops 1006 00:38:33,190 --> 00:38:31,119 remained an integral part in an of 1007 00:38:36,069 --> 00:38:33,200 aviation in an interconnected world of 1008 00:38:37,910 --> 00:38:36,079 technology where old airplanes flying 1009 00:38:40,310 --> 00:38:37,920 under 500 miles per hour and new 1010 00:38:43,190 --> 00:38:40,320 airplanes that can fly faster than 500 1011 00:38:45,190 --> 00:38:43,200 miles per hour continue to coexist 1012 00:38:47,270 --> 00:38:45,200 so the propellers found on lockheed's 1013 00:38:48,150 --> 00:38:47,280 ill-fated lockheed electra that you see 1014 00:38:50,230 --> 00:38:48,160 here 1015 00:38:53,030 --> 00:38:50,240 as well as the much more successful p3 1016 00:38:55,829 --> 00:38:53,040 orion variant and the hercules transport 1017 00:38:59,109 --> 00:38:55,839 benefited from naca air foils and blade 1018 00:39:01,829 --> 00:38:59,119 designs so 16 series blade profiles and 1019 00:39:03,990 --> 00:39:01,839 square tip blades those are a part of 1020 00:39:06,950 --> 00:39:04,000 what the naca contributed to these new 1021 00:39:08,470 --> 00:39:06,960 aircraft that are now ex coexisting and 1022 00:39:10,950 --> 00:39:08,480 i purposely 1023 00:39:15,270 --> 00:39:10,960 juxtaposed the electra with a 707 1024 00:39:18,230 --> 00:39:15,280 airliner 1966 to show that story 1025 00:39:19,910 --> 00:39:18,240 and it's not until the 1970s and 80s 1026 00:39:21,430 --> 00:39:19,920 that 1027 00:39:23,109 --> 00:39:21,440 nasa 1028 00:39:24,630 --> 00:39:23,119 resurrects propeller research in the 1029 00:39:26,470 --> 00:39:24,640 name of the fuel crisis which was 1030 00:39:29,589 --> 00:39:26,480 another story through the advanced turbo 1031 00:39:31,349 --> 00:39:29,599 pop program so in conclusion 1032 00:39:33,349 --> 00:39:31,359 world war ii proved to be a pivotal 1033 00:39:35,030 --> 00:39:33,359 moment for the naca in regard to 1034 00:39:37,270 --> 00:39:35,040 propellers 1035 00:39:39,349 --> 00:39:37,280 evaluating existing propulsion systems 1036 00:39:41,589 --> 00:39:39,359 and investigations into refinements like 1037 00:39:44,069 --> 00:39:41,599 blade cuffs and paddle blades served the 1038 00:39:45,829 --> 00:39:44,079 war effort well but they were concurrent 1039 00:39:47,430 --> 00:39:45,839 with new avenues such as high-speed 1040 00:39:49,670 --> 00:39:47,440 airfoils 1041 00:39:52,150 --> 00:39:49,680 and dual rotation propellers 1042 00:39:54,630 --> 00:39:52,160 both the fundamental and applied thrusts 1043 00:39:57,109 --> 00:39:54,640 of the naca helped advance the state of 1044 00:39:58,870 --> 00:39:57,119 the art for american combat aircraft and 1045 00:40:00,150 --> 00:39:58,880 the military and commercial aircraft 1046 00:40:00,950 --> 00:40:00,160 that followed 1047 00:40:03,589 --> 00:40:00,960 so 1048 00:40:04,870 --> 00:40:03,599 the naca's researchers took a reinvented 1049 00:40:06,790 --> 00:40:04,880 technology 1050 00:40:09,270 --> 00:40:06,800 already capable of making the airplane a 1051 00:40:12,230 --> 00:40:09,280 global weapon and a vehicle for 1052 00:40:20,390 --> 00:40:12,240 transport and made it even better 1053 00:40:24,150 --> 00:40:22,150 now we go to a veteran well known to us 1054 00:40:26,710 --> 00:40:24,160 all he's already been mentioned many 1055 00:40:27,750 --> 00:40:26,720 times at this symposium and justly so 1056 00:40:29,510 --> 00:40:27,760 and that's 1057 00:40:31,430 --> 00:40:29,520 jim hansen it's a great very great 1058 00:40:33,109 --> 00:40:31,440 pleasure to welcome him to the podium 1059 00:40:34,790 --> 00:40:33,119 he's a professor of history at auburn 1060 00:40:37,030 --> 00:40:34,800 university he's been associated with the 1061 00:40:39,190 --> 00:40:37,040 nasa history program for the past 34 1062 00:40:40,870 --> 00:40:39,200 years beginning with his first book 1063 00:40:43,190 --> 00:40:40,880 engineer in charge a history of the 1064 00:40:45,430 --> 00:40:43,200 langley aeronautical laboratory i think 1065 00:40:47,750 --> 00:40:45,440 probably the finest center history the 1066 00:40:49,910 --> 00:40:47,760 nasa program ever produced here's the 1067 00:40:52,790 --> 00:40:49,920 author of 11 books including first man 1068 00:40:54,390 --> 00:40:52,800 the life of neil armstrong a 2005 new 1069 00:40:57,270 --> 00:40:54,400 york times bestseller he's been 1070 00:40:59,190 --> 00:40:57,280 co-author of three naca nasa 1071 00:41:00,390 --> 00:40:59,200 autobiographies from the ground up with 1072 00:41:02,790 --> 00:41:00,400 fred wike 1073 00:41:04,870 --> 00:41:02,800 truth lives and rings with alan mcdonald 1074 00:41:07,109 --> 00:41:04,880 and forever young with astronaut john 1075 00:41:09,750 --> 00:41:07,119 young he will speak to us fittingly on 1076 00:41:11,829 --> 00:41:09,760 that last topic the real right stuff a 1077 00:41:14,630 --> 00:41:11,839 historical examination of the culture 1078 00:41:18,390 --> 00:41:14,640 and accomplishments of the naca research 1079 00:41:18,400 --> 00:41:25,990 thank you 1080 00:41:31,030 --> 00:41:27,430 okay 1081 00:41:35,190 --> 00:41:32,710 in the public eye 1082 00:41:37,589 --> 00:41:35,200 test pilots have usually been perceived 1083 00:41:40,230 --> 00:41:37,599 as dashing glamorous and utterly 1084 00:41:42,630 --> 00:41:40,240 fearless young knights of the air 1085 00:41:44,710 --> 00:41:42,640 test pilots put new and untried aircraft 1086 00:41:46,390 --> 00:41:44,720 into screaming power dives followed by 1087 00:41:48,150 --> 00:41:46,400 high g pullouts 1088 00:41:49,349 --> 00:41:48,160 finding whether the wings will remain in 1089 00:41:52,230 --> 00:41:49,359 one piece 1090 00:41:54,950 --> 00:41:52,240 or the entire machine disintegrate 1091 00:41:56,069 --> 00:41:54,960 much of this slurred imagery was pure 1092 00:41:58,150 --> 00:41:56,079 myth 1093 00:42:01,030 --> 00:41:58,160 developing at least in part from the 1094 00:42:04,309 --> 00:42:01,040 action-packed motion pictures of the 1095 00:42:11,589 --> 00:42:04,319 thirties and nineteen forties 1096 00:42:15,990 --> 00:42:13,670 look like a major glitz here we go 1097 00:42:18,710 --> 00:42:16,000 um 1098 00:42:21,030 --> 00:42:18,720 films such as the 1938 academy award 1099 00:42:23,670 --> 00:42:21,040 nominee test pilot starring two of 1100 00:42:25,750 --> 00:42:23,680 hollywood's most manly stars clark gable 1101 00:42:29,030 --> 00:42:25,760 and spencer tracy 1102 00:42:31,670 --> 00:42:29,040 action as a pair of reckless sky devils 1103 00:42:33,589 --> 00:42:31,680 carve a glorious destiny out of white 1104 00:42:35,990 --> 00:42:33,599 clouds and blue skies 1105 00:42:38,309 --> 00:42:36,000 the valiant drama of men who don't live 1106 00:42:40,550 --> 00:42:38,319 long and the women they love 1107 00:42:41,990 --> 00:42:40,560 in a mighty conflict with the fury of 1108 00:42:45,190 --> 00:42:42,000 the skies 1109 00:42:49,190 --> 00:42:45,200 mgm proudly presents the powerful drama 1110 00:42:51,670 --> 00:42:49,200 of the captains courageous of the air 1111 00:42:53,990 --> 00:42:51,680 scenes of gable flying sensationally 1112 00:42:56,309 --> 00:42:54,000 through thunderstorms lightning ice high 1113 00:42:58,950 --> 00:42:56,319 winds and everything else hollywood can 1114 00:43:01,349 --> 00:42:58,960 throw at a pilot came to a climax at the 1115 00:43:04,309 --> 00:43:01,359 national air races where ninety thousand 1116 00:43:07,430 --> 00:43:04,319 thrilled spec spectators watched gable's 1117 00:43:10,390 --> 00:43:07,440 racer catch fire as he cut tied around a 1118 00:43:13,589 --> 00:43:10,400 pylon his newly wed wife 1119 00:43:16,069 --> 00:43:13,599 played by myrna loy 1120 00:43:17,990 --> 00:43:16,079 cries out to tracy 1121 00:43:20,870 --> 00:43:18,000 he's on fire 1122 00:43:23,030 --> 00:43:20,880 oh that's nothing replies tracy it's 1123 00:43:25,349 --> 00:43:23,040 nice to have a little fire you don't 1124 00:43:28,710 --> 00:43:25,359 know how cold it gets up there 1125 00:43:30,470 --> 00:43:28,720 besides the guy is made of asbestos 1126 00:43:33,510 --> 00:43:30,480 how can you talk like that the wife 1127 00:43:35,430 --> 00:43:33,520 challenges how dare you tracy shouts 1128 00:43:37,670 --> 00:43:35,440 back why you little fool who are you 1129 00:43:40,790 --> 00:43:37,680 talking to what do you think this game 1130 00:43:43,030 --> 00:43:40,800 is anyway it's death every time you move 1131 00:43:44,790 --> 00:43:43,040 it ain't safe to even sit in one of them 1132 00:43:46,069 --> 00:43:44,800 it ain't safe even to look at one of 1133 00:43:49,589 --> 00:43:46,079 them 1134 00:43:51,910 --> 00:43:49,599 well the hero survives 1135 00:43:54,550 --> 00:43:51,920 even wins the race 1136 00:43:56,390 --> 00:43:54,560 and later after a few drinks opens up 1137 00:43:57,750 --> 00:43:56,400 about the dangers of tests flying to 1138 00:43:59,829 --> 00:43:57,760 friends 1139 00:44:01,990 --> 00:43:59,839 the sky looks sweet and wears a pretty 1140 00:44:04,470 --> 00:44:02,000 blue dress doesn't she 1141 00:44:06,630 --> 00:44:04,480 yeah but don't kid yourself she lives up 1142 00:44:08,870 --> 00:44:06,640 there she invites you up there and when 1143 00:44:11,430 --> 00:44:08,880 she gets you up there she knocks you 1144 00:44:14,870 --> 00:44:11,440 down flat on your ass 1145 00:44:16,550 --> 00:44:14,880 how realistic was this popular image of 1146 00:44:18,069 --> 00:44:16,560 the test pilot 1147 00:44:19,670 --> 00:44:18,079 not very 1148 00:44:22,309 --> 00:44:19,680 granted during the golden age of 1149 00:44:24,309 --> 00:44:22,319 aviation a certain breed of test pilot 1150 00:44:26,950 --> 00:44:24,319 fitting a less spectacular version of 1151 00:44:29,109 --> 00:44:26,960 the popular image did exist 1152 00:44:31,589 --> 00:44:29,119 indeed the test pilot that gable 1153 00:44:33,670 --> 00:44:31,599 portrayed in the movie was based on the 1154 00:44:36,309 --> 00:44:33,680 life of jimmy collins 1155 00:44:38,230 --> 00:44:36,319 who fit the image relatively well 1156 00:44:40,950 --> 00:44:38,240 especially as collins with the help of 1157 00:44:44,069 --> 00:44:40,960 his editor at doubleday floydly recalled 1158 00:44:47,750 --> 00:44:44,079 the adventures of his flying in the 1935 1159 00:44:49,829 --> 00:44:47,760 autobiography entitled also test pilot 1160 00:44:52,150 --> 00:44:49,839 but in truth there were not many test 1161 00:44:54,870 --> 00:44:52,160 pilots like collins 1162 00:44:57,430 --> 00:44:54,880 not who fit the image of the 1163 00:44:59,430 --> 00:44:57,440 swashbuckling aviator 1164 00:45:01,670 --> 00:44:59,440 unfortunately the fact that collins was 1165 00:45:04,230 --> 00:45:01,680 killed in march 1935 1166 00:45:06,470 --> 00:45:04,240 while dive testing the new grumman f3f 1167 00:45:09,109 --> 00:45:06,480 navy fighter did nothing but feed the 1168 00:45:11,270 --> 00:45:09,119 fire of the sensationalized image and 1169 00:45:14,309 --> 00:45:11,280 led to an even more excited view of the 1170 00:45:17,430 --> 00:45:14,319 test pilot with the 1938 debut of the 1171 00:45:22,150 --> 00:45:19,910 the daredevil test pilot survived world 1172 00:45:24,309 --> 00:45:22,160 war ii and then some 1173 00:45:26,710 --> 00:45:24,319 despite the aeronautical community's 1174 00:45:29,270 --> 00:45:26,720 steadily growing appreciation of true 1175 00:45:31,589 --> 00:45:29,280 engineering test flying the spec the 1176 00:45:33,670 --> 00:45:31,599 spectacular and still highly dangerous 1177 00:45:35,829 --> 00:45:33,680 aspects of test flying 1178 00:45:37,910 --> 00:45:35,839 were disproportionately emphasized in 1179 00:45:40,069 --> 00:45:37,920 books and films 1180 00:45:43,589 --> 00:45:40,079 all the way to tom wolf's 1181 00:45:46,950 --> 00:45:43,599 classic of 1979 on the ineffable right 1182 00:45:49,190 --> 00:45:46,960 stuff and the 1984 movie based on it 1183 00:45:52,470 --> 00:45:49,200 glorifying air force test pilot chuck 1184 00:45:55,349 --> 00:45:52,480 yeager as the top of the flyers pyramid 1185 00:45:57,670 --> 00:45:55,359 the one with the purest ability quote to 1186 00:45:59,510 --> 00:45:57,680 go up in a hurdling piece of machinery 1187 00:46:01,990 --> 00:45:59,520 and put his height on the line and then 1188 00:46:04,630 --> 00:46:02,000 have the moxie the reflexes the 1189 00:46:07,270 --> 00:46:04,640 experience the coolness to pull it back 1190 00:46:09,349 --> 00:46:07,280 in the last yawning moment 1191 00:46:11,430 --> 00:46:09,359 the year following the adaptation 1192 00:46:13,270 --> 00:46:11,440 general yeager rode the wave of popular 1193 00:46:14,630 --> 00:46:13,280 enthusiasm into his best-selling 1194 00:46:16,710 --> 00:46:14,640 autobiography 1195 00:46:19,430 --> 00:46:16,720 which in terms of romanticizing what a 1196 00:46:21,670 --> 00:46:19,440 test pilot did and how he did it matched 1197 00:46:25,829 --> 00:46:21,680 if not surpassed jimmy collins's 1198 00:46:28,710 --> 00:46:25,839 autobiography of 50 years earlier 1199 00:46:31,430 --> 00:46:28,720 in stark contrast to this popular image 1200 00:46:34,069 --> 00:46:31,440 there were test pilots in major respects 1201 00:46:35,589 --> 00:46:34,079 inherently different from chuck yeager 1202 00:46:38,150 --> 00:46:35,599 who possessed what i call in my 1203 00:46:39,670 --> 00:46:38,160 biography of neil armstrong the real 1204 00:46:43,109 --> 00:46:39,680 right stuff 1205 00:46:44,710 --> 00:46:43,119 these flyers were true research pilots 1206 00:46:46,390 --> 00:46:44,720 for sure that is what the national 1207 00:46:47,510 --> 00:46:46,400 advisory committee for aeronautics 1208 00:46:50,230 --> 00:46:47,520 called them 1209 00:46:52,950 --> 00:46:50,240 and as the naca research pilot culture 1210 00:46:55,589 --> 00:46:52,960 developed from the time of the naca's 1211 00:46:58,309 --> 00:46:55,599 earliest flight research programs 1212 00:47:00,950 --> 00:46:58,319 through the 30s and 40s to the very end 1213 00:47:04,069 --> 00:47:00,960 of the naca when it transitioned and 1214 00:47:07,349 --> 00:47:04,079 principally helped make nasa into what 1215 00:47:09,990 --> 00:47:07,359 it became a research pilot did not 1216 00:47:11,990 --> 00:47:10,000 strive to break records but rather to 1217 00:47:14,550 --> 00:47:12,000 advance the science and technology of 1218 00:47:17,750 --> 00:47:14,560 flight across a broad front 1219 00:47:19,510 --> 00:47:17,760 the mo of a research pilot was not to go 1220 00:47:21,910 --> 00:47:19,520 up in a hurling piece of machinery and 1221 00:47:23,750 --> 00:47:21,920 put his hide on the line but rather 1222 00:47:26,710 --> 00:47:23,760 approach the progress of flight as a man 1223 00:47:29,670 --> 00:47:26,720 of science trained to serve accurately 1224 00:47:31,990 --> 00:47:29,680 criticize fairly think logically and be 1225 00:47:34,630 --> 00:47:32,000 prepared by his advanced education and 1226 00:47:37,190 --> 00:47:34,640 training to exercise a care and a 1227 00:47:38,950 --> 00:47:37,200 patient in his flying thereby achieving 1228 00:47:41,829 --> 00:47:38,960 the most significant experimental 1229 00:47:43,270 --> 00:47:41,839 results possible from every second of 1230 00:47:45,990 --> 00:47:43,280 every flight 1231 00:47:47,990 --> 00:47:46,000 that's how the real right stuff worked 1232 00:47:50,829 --> 00:47:48,000 that's how neil armstrong who flew 1233 00:47:53,030 --> 00:47:50,839 projects for the naca from march 1234 00:47:54,790 --> 00:47:53,040 1955 fresh out of the school of 1235 00:47:56,470 --> 00:47:54,800 engineering at purdue 1236 00:47:58,150 --> 00:47:56,480 right up to the time he reported to 1237 00:47:59,430 --> 00:47:58,160 houston as part of the second group of 1238 00:48:01,910 --> 00:47:59,440 astronauts 1239 00:48:04,790 --> 00:48:01,920 in september 1962. 1240 00:48:08,030 --> 00:48:04,800 in those six years armstrong flew 50 1241 00:48:12,950 --> 00:48:08,040 different types of aircraft a total of 2 1242 00:48:14,470 --> 00:48:12,960 450 research flying hours 900 than 900 1243 00:48:16,470 --> 00:48:14,480 of them in jets 1244 00:48:19,030 --> 00:48:16,480 while at the nasa center that now bears 1245 00:48:21,109 --> 00:48:19,040 his name neil actively engaged in both 1246 00:48:24,630 --> 00:48:21,119 piloting and engineering aspects of the 1247 00:48:26,549 --> 00:48:24,640 x-15 program almost from its inception 1248 00:48:29,190 --> 00:48:26,559 he worked closely with designers and 1249 00:48:31,670 --> 00:48:29,200 engineers in the development of the x-15 1250 00:48:32,870 --> 00:48:31,680 adaptive self-adaptive control system 1251 00:48:35,670 --> 00:48:32,880 for flights at the edge of the 1252 00:48:37,670 --> 00:48:35,680 atmosphere and he made seven flights in 1253 00:48:39,430 --> 00:48:37,680 the rocket plane reaching a peak 1254 00:48:41,750 --> 00:48:39,440 altitude of over two hundred and seven 1255 00:48:44,069 --> 00:48:41,760 thousand feet and a top speed of nearly 1256 00:48:46,230 --> 00:48:44,079 four thousand miles per hour 1257 00:48:48,230 --> 00:48:46,240 but my purpose today is not to again 1258 00:48:51,109 --> 00:48:48,240 feature neil armstrong as the research 1259 00:48:53,030 --> 00:48:51,119 pilot who had the real right stuff 1260 00:48:55,190 --> 00:48:53,040 no question but that armstrong will 1261 00:48:57,030 --> 00:48:55,200 always stand as the most famous and one 1262 00:48:59,430 --> 00:48:57,040 of the greatest of all of the naca 1263 00:49:01,430 --> 00:48:59,440 pilots 1264 00:49:03,510 --> 00:49:01,440 which by my rough count 1265 00:49:06,069 --> 00:49:03,520 involved something over a hundred pilots 1266 00:49:09,030 --> 00:49:06,079 from neal's time at the end of the naca 1267 00:49:10,390 --> 00:49:09,040 back to 1919 when most of the test 1268 00:49:12,309 --> 00:49:10,400 flying 1269 00:49:15,030 --> 00:49:12,319 for the committee was being done by 1270 00:49:17,589 --> 00:49:15,040 lieutenant eddie allen lieutenant h m 1271 00:49:19,190 --> 00:49:17,599 cronk or one of seven other pilots on 1272 00:49:21,589 --> 00:49:19,200 loan from the army 1273 00:49:24,870 --> 00:49:21,599 this was prior to the committee in early 1274 00:49:27,430 --> 00:49:24,880 1920 hiring the first pilot pilot of his 1275 00:49:29,670 --> 00:49:27,440 own thomas carroll who during the great 1276 00:49:31,349 --> 00:49:29,680 war had served in france teaching air 1277 00:49:33,270 --> 00:49:31,359 tactics 1278 00:49:36,549 --> 00:49:33,280 there is another pilot who exemplified 1279 00:49:39,270 --> 00:49:36,559 the naca research culture as well if not 1280 00:49:42,549 --> 00:49:39,280 better than neil armstrong and armstrong 1281 00:49:45,349 --> 00:49:42,559 felt exactly that way about it himself 1282 00:49:47,349 --> 00:49:45,359 when i first met neil back in 2001 and 1283 00:49:49,589 --> 00:49:47,359 sat down with him at his home to talk 1284 00:49:51,910 --> 00:49:49,599 about my writing his life story 1285 00:49:54,390 --> 00:49:51,920 at some point in that conversation i 1286 00:49:56,870 --> 00:49:54,400 asked him if he had ever had anything to 1287 00:49:57,750 --> 00:49:56,880 do with veteran langley test pilot jack 1288 00:49:59,589 --> 00:49:57,760 reader 1289 00:50:02,150 --> 00:49:59,599 someone who had gotten to know well 1290 00:50:03,430 --> 00:50:02,160 while writing engineer in charge 1291 00:50:05,270 --> 00:50:03,440 instantly 1292 00:50:08,390 --> 00:50:05,280 neil perked up 1293 00:50:11,030 --> 00:50:08,400 and turned to his wife and said carol 1294 00:50:12,390 --> 00:50:11,040 jack reader was the best test pilot i 1295 00:50:14,549 --> 00:50:12,400 ever knew 1296 00:50:18,069 --> 00:50:14,559 and it's interesting that bill berry 1297 00:50:21,349 --> 00:50:18,079 chose this picture for the cover of the 1298 00:50:22,870 --> 00:50:21,359 nasa history of naca bibliography 1299 00:50:24,950 --> 00:50:22,880 because that's jack reader right in the 1300 00:50:27,349 --> 00:50:24,960 middle of that scene 1301 00:50:29,589 --> 00:50:27,359 but neil said to his wife jack reader 1302 00:50:32,069 --> 00:50:29,599 was the best test pilot i ever knew then 1303 00:50:35,670 --> 00:50:32,079 turning back to mean neil added 1304 00:50:40,950 --> 00:50:38,790 absolutely true story 1305 00:50:43,190 --> 00:50:40,960 so let me take the rest of my grief time 1306 00:50:44,790 --> 00:50:43,200 up here to tell you about jack reader 1307 00:50:48,309 --> 00:50:44,800 truly one of the most outstanding 1308 00:50:49,910 --> 00:50:48,319 research pilots in naca and nasa history 1309 00:50:51,109 --> 00:50:49,920 i think it's what neil would want me to 1310 00:50:53,750 --> 00:50:51,119 do 1311 00:50:55,349 --> 00:50:53,760 in the spring of 1938 at the very time 1312 00:50:59,270 --> 00:50:55,359 the clark gable film was filling up 1313 00:51:01,510 --> 00:50:59,280 movie houses 22 year old john p reader 1314 00:51:03,270 --> 00:51:01,520 came to work at naca langley right out 1315 00:51:05,349 --> 00:51:03,280 of an aeronautical engineering program 1316 00:51:08,069 --> 00:51:05,359 at the university of michigan one of 1317 00:51:09,750 --> 00:51:08,079 eight institutions whose aero program 1318 00:51:11,430 --> 00:51:09,760 operated with the advantage of an 1319 00:51:14,309 --> 00:51:11,440 endowment from the guggenheim fund for 1320 00:51:16,790 --> 00:51:14,319 the promotion of aeronautics 1321 00:51:19,109 --> 00:51:16,800 at his initial interview after arriving 1322 00:51:20,950 --> 00:51:19,119 at langley reader requested 1323 00:51:24,150 --> 00:51:20,960 assignment to the flight research 1324 00:51:26,790 --> 00:51:24,160 division he had learned to fly gliders 1325 00:51:29,270 --> 00:51:26,800 while a student in ann arbor he began 1326 00:51:31,990 --> 00:51:29,280 taking private flying lessons in a piper 1327 00:51:34,309 --> 00:51:32,000 cub immediately upon arrival in hampton 1328 00:51:36,950 --> 00:51:34,319 and in taking the naca post he had 1329 00:51:39,030 --> 00:51:36,960 turned down navy flight training 1330 00:51:41,829 --> 00:51:39,040 the full-scale tunnel section however 1331 00:51:44,549 --> 00:51:41,839 was in more urgent need of personnel and 1332 00:51:46,710 --> 00:51:44,559 reader was assigned there working with a 1333 00:51:50,069 --> 00:51:46,720 unique facility that became operational 1334 00:51:52,230 --> 00:51:50,079 in 1931 for tests of full-scale aircraft 1335 00:51:54,309 --> 00:51:52,240 or very large models 1336 00:51:56,069 --> 00:51:54,319 jack would spend four years four and a 1337 00:51:58,790 --> 00:51:56,079 half years in the full-scale tunnel 1338 00:52:01,109 --> 00:51:58,800 section during which time he engaged in 1339 00:52:03,589 --> 00:52:01,119 studies of stability and control 1340 00:52:05,510 --> 00:52:03,599 engine cooling and drag reduction 1341 00:52:08,470 --> 00:52:05,520 some of this work was of a generally 1342 00:52:09,990 --> 00:52:08,480 applicable fundamental nature much of it 1343 00:52:11,829 --> 00:52:10,000 however was directed toward the 1344 00:52:13,030 --> 00:52:11,839 improvement of specific military 1345 00:52:17,670 --> 00:52:13,040 aircraft 1346 00:52:18,549 --> 00:52:17,680 investigate in the full-scale tunnel 1347 00:52:20,549 --> 00:52:18,559 were 1348 00:52:24,069 --> 00:52:20,559 bell and curtis fighters navy 1349 00:52:25,510 --> 00:52:24,079 observation and torpedo planes and army 1350 00:52:28,510 --> 00:52:25,520 attack bombers 1351 00:52:31,750 --> 00:52:28,520 jack also ran tests on the voxikarsky 1352 00:52:33,990 --> 00:52:31,760 v-173 the so-called flying pancake a 1353 00:52:36,549 --> 00:52:34,000 highly unusual flying mock-up of an 1354 00:52:39,430 --> 00:52:36,559 earlier powered lift short takeoff and 1355 00:52:40,710 --> 00:52:39,440 landing stole fighter aircraft conceived 1356 00:52:43,109 --> 00:52:40,720 and developed 1357 00:52:44,950 --> 00:52:43,119 by charles zimmerman a university of 1358 00:52:47,030 --> 00:52:44,960 kansas engineer who came to work at 1359 00:52:49,589 --> 00:52:47,040 langley in 1929 1360 00:52:51,829 --> 00:52:49,599 stayed until 1927 and then returned to 1361 00:52:53,589 --> 00:52:51,839 langley in 46. he would be part of 1362 00:52:56,150 --> 00:52:53,599 gilbert's space task group 1363 00:52:57,910 --> 00:52:56,160 and go on to nasa and a lot of pictures 1364 00:53:01,589 --> 00:52:57,920 showing test setups in the full-scale 1365 00:53:05,030 --> 00:53:01,599 tunnel from 1939 into 1942 you can see 1366 00:53:07,829 --> 00:53:05,040 jack readers standing below the aircraft 1367 00:53:10,309 --> 00:53:07,839 while part of the fst staff reader was 1368 00:53:13,270 --> 00:53:10,319 the author or co-author of nine 1369 00:53:16,549 --> 00:53:13,280 technical reports the trs being the 1370 00:53:18,950 --> 00:53:16,559 highest echelon of naca of the nac 1371 00:53:20,790 --> 00:53:18,960 publication program this was a highly 1372 00:53:22,870 --> 00:53:20,800 respectable output for the four and a 1373 00:53:25,270 --> 00:53:22,880 half years that jack spent as a member 1374 00:53:27,190 --> 00:53:25,280 of that staff his research papers 1375 00:53:28,790 --> 00:53:27,200 contributed important insights into the 1376 00:53:31,910 --> 00:53:28,800 relationships between aircraft 1377 00:53:34,470 --> 00:53:31,920 performance stability and control and 1378 00:53:35,829 --> 00:53:34,480 aerodynamic design of great importance 1379 00:53:38,790 --> 00:53:35,839 to jack's growing technical 1380 00:53:40,150 --> 00:53:38,800 sophistications where his daily contacts 1381 00:53:42,470 --> 00:53:40,160 contacts with 1382 00:53:44,950 --> 00:53:42,480 excellent research engineers from other 1383 00:53:47,510 --> 00:53:44,960 langley divisions for example one of his 1384 00:53:50,470 --> 00:53:47,520 daily contacts was abe silverstein who 1385 00:53:52,710 --> 00:53:50,480 later became the director of nasa lewis 1386 00:53:55,349 --> 00:53:52,720 another was harry get who became a 1387 00:53:56,870 --> 00:53:55,359 senior division chief at naca ames and 1388 00:53:58,790 --> 00:53:56,880 then later appointed as the first 1389 00:54:00,150 --> 00:53:58,800 director of nasa goddard 1390 00:54:02,069 --> 00:54:00,160 in addition to 1391 00:54:03,910 --> 00:54:02,079 demonstrating outstanding technical 1392 00:54:06,390 --> 00:54:03,920 aptitude in his years at the full-scale 1393 00:54:08,710 --> 00:54:06,400 tunnel reader gained valuable insights 1394 00:54:10,710 --> 00:54:08,720 into aircraft aerodynamics and design 1395 00:54:13,109 --> 00:54:10,720 which were to serve him extremely well 1396 00:54:14,870 --> 00:54:13,119 as a as a test pilot 1397 00:54:17,430 --> 00:54:14,880 world war ii brought a tremendous 1398 00:54:19,270 --> 00:54:17,440 expansion of nac facilities including 1399 00:54:21,990 --> 00:54:19,280 the building of entire new laboratories 1400 00:54:25,190 --> 00:54:22,000 in ohio and california at langley the 1401 00:54:27,630 --> 00:54:25,200 size of the staff rose from 524 1402 00:54:30,390 --> 00:54:27,640 in 1939 to 1403 00:54:32,230 --> 00:54:30,400 3220 in 1945. 1404 00:54:36,230 --> 00:54:32,240 within that the professional staff 1405 00:54:38,390 --> 00:54:36,240 quadrupled from 204 to 832 1406 00:54:41,829 --> 00:54:38,400 the volume and range of work expected of 1407 00:54:43,829 --> 00:54:41,839 the naca required those buildups much of 1408 00:54:46,390 --> 00:54:43,839 it involved wind tunnel testing but the 1409 00:54:49,910 --> 00:54:46,400 demands to flight test military aircraft 1410 00:54:51,910 --> 00:54:49,920 were urgent with 119 different aircraft 1411 00:54:55,589 --> 00:54:51,920 coming to langley for flight and gut 1412 00:54:58,549 --> 00:54:55,599 investigation between 1939 and 1945 1413 00:54:59,430 --> 00:54:58,559 spending the equivalent of over 1100 1414 00:55:02,069 --> 00:54:59,440 months 1415 00:55:03,430 --> 00:55:02,079 cumulatively as part of the lab's test 1416 00:55:05,349 --> 00:55:03,440 resume 1417 00:55:08,230 --> 00:55:05,359 langley needed pilots 1418 00:55:11,030 --> 00:55:08,240 up until 1939 two pilots had been able 1419 00:55:14,069 --> 00:55:11,040 to do all of the research flying 1420 00:55:15,829 --> 00:55:14,079 one was william mcavoy a 45 year old 1421 00:55:17,670 --> 00:55:15,839 pilot who had learned to fly in the army 1422 00:55:19,750 --> 00:55:17,680 late in world war one 1423 00:55:22,549 --> 00:55:19,760 finding no place in army aviation 1424 00:55:26,710 --> 00:55:22,559 following armistice mcavoy a trained 1425 00:55:29,430 --> 00:55:26,720 draftsman got hired by the naca in 1921. 1426 00:55:31,589 --> 00:55:29,440 by 1923 young bill worked his way into 1427 00:55:33,430 --> 00:55:31,599 the position of assistant chief test 1428 00:55:35,430 --> 00:55:33,440 pilot to tom carroll 1429 00:55:37,030 --> 00:55:35,440 following carol's departure from langley 1430 00:55:39,030 --> 00:55:37,040 in 1929 1431 00:55:40,870 --> 00:55:39,040 mcavoy became chief test pilot and 1432 00:55:43,910 --> 00:55:40,880 remained in the leadership position 1433 00:55:45,589 --> 00:55:43,920 until his transfer in 1940 to ames where 1434 00:55:48,390 --> 00:55:45,599 he filled the same position until his 1435 00:55:50,309 --> 00:55:48,400 retirement in 1957. 1436 00:55:53,430 --> 00:55:50,319 the second man doing most of the 1437 00:55:56,470 --> 00:55:53,440 research flying up to 1939 was melvin 1438 00:55:58,710 --> 00:55:56,480 goff a 1926 graduate in mechanical 1439 00:56:00,630 --> 00:55:58,720 engineering from johns hopkins 1440 00:56:02,630 --> 00:56:00,640 goff's original assignment was to the 1441 00:56:05,190 --> 00:56:02,640 propeller research tunnel that jeremy 1442 00:56:07,910 --> 00:56:05,200 just told us about his evolution into a 1443 00:56:10,309 --> 00:56:07,920 langley research pilot set a critically 1444 00:56:13,349 --> 00:56:10,319 important precedent in the emergence of 1445 00:56:16,309 --> 00:56:13,359 the real right stuff within the naca in 1446 00:56:18,150 --> 00:56:16,319 1928 the naca sent golf for flight 1447 00:56:19,750 --> 00:56:18,160 training to pensacola 1448 00:56:21,829 --> 00:56:19,760 returning to langley as a fully 1449 00:56:24,950 --> 00:56:21,839 qualified naval aviator in the spring of 1450 00:56:26,710 --> 00:56:24,960 1929 goff became the first member of the 1451 00:56:29,349 --> 00:56:26,720 flight group to be trained both as an 1452 00:56:31,510 --> 00:56:29,359 engineer and a pilot setting a precedent 1453 00:56:33,990 --> 00:56:31,520 that has existed to this day 1454 00:56:35,349 --> 00:56:34,000 since this time all nac and nasa pilots 1455 00:56:37,670 --> 00:56:35,359 have been required to have engineering 1456 00:56:38,789 --> 00:56:37,680 or scientific degrees as well as pilot 1457 00:56:40,630 --> 00:56:38,799 skills 1458 00:56:43,430 --> 00:56:40,640 goth remained in the flangly flight 1459 00:56:45,670 --> 00:56:43,440 group until 1958 becoming chief pilot 1460 00:56:47,910 --> 00:56:45,680 when mcavoy left for ames 1461 00:56:49,990 --> 00:56:47,920 up to the time of pearl harbor the nac 1462 00:56:53,270 --> 00:56:50,000 had been able to add three or four new 1463 00:56:56,309 --> 00:56:53,280 pilots including an engineering graduate 1464 00:56:59,510 --> 00:56:56,319 from the university of tennessee herbert 1465 00:57:01,510 --> 00:56:59,520 hoover not that one herb hoover reported 1466 00:57:04,630 --> 00:57:01,520 for duty in 1940 and became head of 1467 00:57:06,630 --> 00:57:04,640 flight operations at langley in 1943 1468 00:57:08,950 --> 00:57:06,640 after making many contributions to 1469 00:57:11,990 --> 00:57:08,960 flight research including thunderstorm 1470 00:57:14,870 --> 00:57:12,000 research and being the first civilian 1471 00:57:17,349 --> 00:57:14,880 pilot of the x1 1472 00:57:19,109 --> 00:57:17,359 hoover was killed in the crash of a b-45 1473 00:57:20,710 --> 00:57:19,119 in 1952 1474 00:57:23,109 --> 00:57:20,720 but the addition of hoover and a couple 1475 00:57:24,950 --> 00:57:23,119 others in 1940 was not enough 1476 00:57:27,109 --> 00:57:24,960 in need of additional pilots at a time 1477 00:57:29,589 --> 00:57:27,119 when the traditional sources for new 1478 00:57:32,470 --> 00:57:29,599 naca pilots the army and navy were 1479 00:57:36,309 --> 00:57:32,480 releasing none for civilian use langley 1480 00:57:39,670 --> 00:57:36,319 turned to the goth model to supply more 1481 00:57:41,270 --> 00:57:39,680 pilots in the late summer of 1942 goth 1482 00:57:43,829 --> 00:57:41,280 along with future langley center 1483 00:57:46,069 --> 00:57:43,839 director floyd thompson put forward a 1484 00:57:47,750 --> 00:57:46,079 call for a group of young engineers 1485 00:57:49,670 --> 00:57:47,760 preferably with some 1486 00:57:52,470 --> 00:57:49,680 some flying experience from the langley 1487 00:57:53,910 --> 00:57:52,480 staff to be selected for training 1488 00:57:55,030 --> 00:57:53,920 as pilots in the flight research 1489 00:57:56,710 --> 00:57:55,040 division 1490 00:57:59,270 --> 00:57:56,720 some of the established test pilots 1491 00:58:01,510 --> 00:57:59,280 viewed the proposal with skepticism 1492 00:58:04,150 --> 00:58:01,520 herb hoover especially had grave 1493 00:58:06,230 --> 00:58:04,160 reservations about the plan but goff 1494 00:58:08,150 --> 00:58:06,240 knew better from personal experience 1495 00:58:09,829 --> 00:58:08,160 convinced his superiors and by the fall 1496 00:58:12,549 --> 00:58:09,839 of 1942 1497 00:58:14,549 --> 00:58:12,559 35 eager applicants had been interviewed 1498 00:58:17,270 --> 00:58:14,559 for the pilot training program 1499 00:58:19,109 --> 00:58:17,280 altogether five engineer pilots as they 1500 00:58:20,630 --> 00:58:19,119 called them were trained in the program 1501 00:58:23,589 --> 00:58:20,640 and each went on to make major 1502 00:58:25,349 --> 00:58:23,599 contributions to naca flight research 1503 00:58:28,230 --> 00:58:25,359 three of the pilots including jack 1504 00:58:30,950 --> 00:58:28,240 reeder were retained at langley 1505 00:58:33,670 --> 00:58:30,960 and two went to the other naca 1506 00:58:36,069 --> 00:58:33,680 installations the choice of reader was 1507 00:58:37,990 --> 00:58:36,079 likely the easiest one jack had more 1508 00:58:39,030 --> 00:58:38,000 than proved his metal in the full-scale 1509 00:58:40,870 --> 00:58:39,040 tunnel 1510 00:58:43,750 --> 00:58:40,880 and he had 10 years of personal 1511 00:58:46,870 --> 00:58:43,760 experience piloting a 90 horsepower 1512 00:58:48,870 --> 00:58:46,880 monocoque which he had purchased in 1930 1513 00:58:51,430 --> 00:58:48,880 which was an airplane with reputation 1514 00:58:53,030 --> 00:58:51,440 for being tricky to fly 1515 00:58:54,470 --> 00:58:53,040 here in this slide if you can take a 1516 00:58:57,030 --> 00:58:54,480 close look at it is a list of the 1517 00:58:58,950 --> 00:58:57,040 aircraft employed in the langley pilot 1518 00:58:59,990 --> 00:58:58,960 training program in the order of their 1519 00:59:02,069 --> 00:59:00,000 use 1520 00:59:04,710 --> 00:59:02,079 note that as the student progressed he 1521 00:59:07,670 --> 00:59:04,720 flew aircraft of increasing weight power 1522 00:59:09,190 --> 00:59:07,680 wing loading and reduced power loading 1523 00:59:11,670 --> 00:59:09,200 note also the progression in 1524 00:59:13,349 --> 00:59:11,680 configuration types first there was a 1525 00:59:15,990 --> 00:59:13,359 group of increasingly sophisticated 1526 00:59:18,630 --> 00:59:16,000 general aviation types after which came 1527 00:59:20,870 --> 00:59:18,640 in an advanced navy trainer followed by 1528 00:59:23,510 --> 00:59:20,880 a succession of single-engine fighters 1529 00:59:26,309 --> 00:59:23,520 dive bombers a torpedo bomber and one 1530 00:59:28,309 --> 00:59:26,319 twin-engine aircraft the lockheed 12. 1531 00:59:31,109 --> 00:59:28,319 the first fighter that jack reader flew 1532 00:59:34,069 --> 00:59:31,119 is the curtis xp-42 a derivative of the 1533 00:59:37,030 --> 00:59:34,079 p-36 air core service fighter 1534 00:59:38,789 --> 00:59:37,040 well the mel golf model worked 1535 00:59:40,630 --> 00:59:38,799 it did more than that it produced 1536 00:59:42,390 --> 00:59:40,640 someone who neil armstrong some years 1537 00:59:44,230 --> 00:59:42,400 later 60 years later called the best 1538 00:59:45,910 --> 00:59:44,240 test pilot he ever knew 1539 00:59:49,349 --> 00:59:45,920 in his first full year as a research 1540 00:59:52,230 --> 00:59:49,359 pilot reader flew tests flew 19 aircraft 1541 00:59:53,990 --> 00:59:52,240 nine of which were fighters in 1951 he 1542 00:59:56,150 --> 00:59:54,000 became head of flight operations and 1543 00:59:58,549 --> 00:59:56,160 chief test pilot when he retired from 1544 01:00:02,870 --> 00:59:58,559 nasa in the late 1970s he had captained 1545 01:00:04,870 --> 01:00:02,880 more than 235 airplanes 61 helicopters 1546 01:00:07,670 --> 01:00:04,880 and eight vertical takeoff and landing 1547 01:00:10,150 --> 01:00:07,680 aircraft reader was actually nasa's 1548 01:00:11,829 --> 01:00:10,160 first helicopter pilot test pilot and 1549 01:00:14,069 --> 01:00:11,839 was internationally known for his 1550 01:00:16,470 --> 01:00:14,079 pioneering work in helicopter and vetol 1551 01:00:18,150 --> 01:00:16,480 aerodynamics and handling he was also a 1552 01:00:20,309 --> 01:00:18,160 leading member of the team that drafted 1553 01:00:22,470 --> 01:00:20,319 the original military specifications for 1554 01:00:24,309 --> 01:00:22,480 the flying qualities of helicopters and 1555 01:00:26,710 --> 01:00:24,319 he was a founding member of the twirly 1556 01:00:29,510 --> 01:00:26,720 birds in his obituary following his 1557 01:00:31,430 --> 01:00:29,520 death from alzheimer's in 1999 one of 1558 01:00:33,910 --> 01:00:31,440 the research pilots who had trained and 1559 01:00:36,549 --> 01:00:33,920 worked under jack lee person is quoted 1560 01:00:38,309 --> 01:00:36,559 as saying jack was my hero he was in my 1561 01:00:41,030 --> 01:00:38,319 estimation the finest engineering test 1562 01:00:43,030 --> 01:00:41,040 pilot in the world he demanded a lot 1563 01:00:45,349 --> 01:00:43,040 from himself and he demanded a lot from 1564 01:00:47,270 --> 01:00:45,359 his pilots he was the kind of guy who 1565 01:00:48,870 --> 01:00:47,280 was always sampling the airplane always 1566 01:00:51,109 --> 01:00:48,880 looking for little things that maybe he 1567 01:00:53,829 --> 01:00:51,119 hadn't noticed for noticed before he 1568 01:00:55,910 --> 01:00:53,839 just had an innate feel for airplanes 1569 01:00:57,270 --> 01:00:55,920 he could fly them all and he was honest 1570 01:00:59,109 --> 01:00:57,280 to a fault 1571 01:01:00,870 --> 01:00:59,119 which brings me back to chuck yeager and 1572 01:01:03,349 --> 01:01:00,880 the popular notion of the hot shot 1573 01:01:05,270 --> 01:01:03,359 daredevil death defying test pilot 1574 01:01:07,270 --> 01:01:05,280 without question jaeger's view of flying 1575 01:01:09,270 --> 01:01:07,280 was very different from that of the naca 1576 01:01:10,710 --> 01:01:09,280 research pilot and there was no love 1577 01:01:12,870 --> 01:01:10,720 lost between them 1578 01:01:15,430 --> 01:01:12,880 according to jaeger the nac wasn't 1579 01:01:17,109 --> 01:01:15,440 thrilled as a quote wasn't thrilled with 1580 01:01:20,069 --> 01:01:17,119 the army's selection of him as a test 1581 01:01:21,430 --> 01:01:20,079 pilot quote the naca team thought i was 1582 01:01:23,190 --> 01:01:21,440 a wild man 1583 01:01:25,589 --> 01:01:23,200 one of the stories the nanny sea old 1584 01:01:27,349 --> 01:01:25,599 timers used to tell me about yeager 1585 01:01:29,270 --> 01:01:27,359 concerns why the army air force has 1586 01:01:31,430 --> 01:01:29,280 selected him to fly the x1 for the 1587 01:01:33,270 --> 01:01:31,440 assault on the sonde barrier it was not 1588 01:01:34,789 --> 01:01:33,280 because jaeger was the most qualified to 1589 01:01:37,270 --> 01:01:34,799 meet the unknown dangers of the first 1590 01:01:39,109 --> 01:01:37,280 supersonic flight they told me it was 1591 01:01:41,190 --> 01:01:39,119 because air force leadership considered 1592 01:01:42,470 --> 01:01:41,200 him the most expendable of all of its 1593 01:01:44,309 --> 01:01:42,480 test pilots 1594 01:01:46,390 --> 01:01:44,319 jaeger who remembers being treated with 1595 01:01:49,510 --> 01:01:46,400 this sort of condescension called the 1596 01:01:51,589 --> 01:01:49,520 naca pilots the most arrogant bunch at 1597 01:01:53,750 --> 01:01:51,599 edwards quote there was nothing 1598 01:01:56,069 --> 01:01:53,760 worthwhile that a military pilot could 1599 01:01:59,349 --> 01:01:56,079 tell them i rated them about as high as 1600 01:02:01,910 --> 01:01:59,359 my shoelaces i lived balls out flew the 1601 01:02:03,990 --> 01:02:01,920 same way i had my own standards and as 1602 01:02:05,670 --> 01:02:04,000 far as i was concerned there was no room 1603 01:02:07,910 --> 01:02:05,680 at edwards for test pilots who couldn't 1604 01:02:09,750 --> 01:02:07,920 measure up to the machines they flew 1605 01:02:11,349 --> 01:02:09,760 i was harsh in my judgments because a 1606 01:02:13,910 --> 01:02:11,359 pilot either knew what he was doing or 1607 01:02:16,069 --> 01:02:13,920 he didn't the naca pilots were probably 1608 01:02:18,870 --> 01:02:16,079 good engineers who could fly precisely 1609 01:02:21,190 --> 01:02:18,880 but they were sorry fighter pilots 1610 01:02:23,029 --> 01:02:21,200 well of course naca pilots were not 1611 01:02:25,349 --> 01:02:23,039 supposed to be fighter pilots they were 1612 01:02:26,950 --> 01:02:25,359 supposed to be research pilots 1613 01:02:29,190 --> 01:02:26,960 neil armstrong was a pretty good 1614 01:02:31,670 --> 01:02:29,200 engineer jaeger conceded in his 1615 01:02:33,990 --> 01:02:31,680 autobiography but he wasn't too good an 1616 01:02:35,910 --> 01:02:34,000 airplane driver 1617 01:02:37,270 --> 01:02:35,920 in my interviews with armstrong neil 1618 01:02:38,870 --> 01:02:37,280 responded 1619 01:02:40,710 --> 01:02:38,880 this way 1620 01:02:42,470 --> 01:02:40,720 jaeger had limited understanding of 1621 01:02:43,990 --> 01:02:42,480 aeronautical engineering he really i 1622 01:02:46,069 --> 01:02:44,000 don't think understood quite what we 1623 01:02:48,150 --> 01:02:46,079 were trying to learn he was very good at 1624 01:02:49,670 --> 01:02:48,160 flying aircraft and doing aerobatics and 1625 01:02:51,990 --> 01:02:49,680 loved getting into mock combat 1626 01:02:53,670 --> 01:02:52,000 situations one-on-one but he seemed to 1627 01:02:55,430 --> 01:02:53,680 have less interest in precision and 1628 01:02:57,589 --> 01:02:55,440 getting information and drawing 1629 01:02:59,829 --> 01:02:57,599 conclusions from that he seemed to be 1630 01:03:01,670 --> 01:02:59,839 impatient not so much bored but 1631 01:03:05,670 --> 01:03:01,680 impatient with the planning and 1632 01:03:11,910 --> 01:03:09,510 the planning and techniques of the naca 1633 01:03:13,910 --> 01:03:11,920 perhaps the right stuff as tom wolf 1634 01:03:15,910 --> 01:03:13,920 perceived it really did exist 1635 01:03:17,670 --> 01:03:15,920 and chuck yeager had the most manly dose 1636 01:03:19,589 --> 01:03:17,680 of it perhaps 1637 01:03:21,510 --> 01:03:19,599 but surely as historians we must 1638 01:03:23,990 --> 01:03:21,520 conclude that it was engineer pilots 1639 01:03:26,069 --> 01:03:24,000 like jack reeder and neil armstrong who 1640 01:03:28,069 --> 01:03:26,079 possessed the real right stuff 1641 01:03:30,109 --> 01:03:28,079 it was in fact the culture of the real 1642 01:03:33,430 --> 01:03:30,119 right stuff as articulated and 1643 01:03:35,829 --> 01:03:33,440 institutionalized by the naca involving 1644 01:03:37,510 --> 01:03:35,839 test pilots engaged in less spectacular 1645 01:03:40,150 --> 01:03:37,520 but more quantitative types of 1646 01:03:41,829 --> 01:03:40,160 experimental flying and precise 1647 01:03:44,150 --> 01:03:41,839 experimental flying with highly 1648 01:03:46,150 --> 01:03:44,160 instrumented aircraft that provided the 1649 01:03:48,789 --> 01:03:46,160 essential productive link between the 1650 01:03:51,029 --> 01:03:48,799 world of the cockpit and the theoretical 1651 01:04:00,150 --> 01:03:51,039 design and engineering aspects of the 1652 01:04:03,190 --> 01:04:01,829 thanks very much for that jim and i 1653 01:04:04,870 --> 01:04:03,200 think we'll have probably some very 1654 01:04:06,789 --> 01:04:04,880 interesting questions in the q a 1655 01:04:08,470 --> 01:04:06,799 following up on that 1656 01:04:10,710 --> 01:04:08,480 we have now 1657 01:04:11,670 --> 01:04:10,720 for our final presentation in this 1658 01:04:13,670 --> 01:04:11,680 session 1659 01:04:15,829 --> 01:04:13,680 we have another very gifted young 1660 01:04:18,309 --> 01:04:15,839 scholar dr matthew hirsch a lecturer in 1661 01:04:19,829 --> 01:04:18,319 bioengineering and science technology 1662 01:04:22,309 --> 01:04:19,839 and society at the university of 1663 01:04:24,069 --> 01:04:22,319 pennsylvania 1664 01:04:25,670 --> 01:04:24,079 he uh where he teaches the history of 1665 01:04:26,390 --> 01:04:25,680 aerospace technologies and engineering 1666 01:04:28,069 --> 01:04:26,400 ethics 1667 01:04:29,750 --> 01:04:28,079 he's a former fellow right here at the 1668 01:04:32,309 --> 01:04:29,760 national aerospace museum and at the 1669 01:04:34,069 --> 01:04:32,319 huntington usc institute on california 1670 01:04:36,150 --> 01:04:34,079 in the west and is the author of 1671 01:04:38,630 --> 01:04:36,160 inventing the american astronaut he'll 1672 01:04:40,950 --> 01:04:38,640 take this discussion to the next level 1673 01:04:43,990 --> 01:04:40,960 treating flight tests to moonshot the 1674 01:04:59,029 --> 01:04:44,000 naca the astronauts and the culture of 1675 01:05:01,829 --> 01:05:00,230 thank you 1676 01:05:04,069 --> 01:05:01,839 today we've heard a great deal about the 1677 01:05:06,390 --> 01:05:04,079 contributions of the national advisory 1678 01:05:08,549 --> 01:05:06,400 committee for aeronautics to aviation 1679 01:05:10,870 --> 01:05:08,559 i'd like to continue that story by 1680 01:05:12,150 --> 01:05:10,880 examining the influence of the naca on 1681 01:05:14,150 --> 01:05:12,160 space flight 1682 01:05:15,510 --> 01:05:14,160 in fact my talk may be the only one you 1683 01:05:17,750 --> 01:05:15,520 will hear at this symposium that 1684 01:05:20,390 --> 01:05:17,760 concerns a time period during which the 1685 01:05:22,309 --> 01:05:20,400 naca did not actually exist 1686 01:05:25,750 --> 01:05:22,319 though not an independent organization 1687 01:05:27,270 --> 01:05:25,760 after 1958 the naca through its 1688 01:05:29,349 --> 01:05:27,280 personnel did make valuable 1689 01:05:31,349 --> 01:05:29,359 contributions to space flight research 1690 01:05:33,109 --> 01:05:31,359 that paid dividends long after the 1691 01:05:35,190 --> 01:05:33,119 organization that had employed them had 1692 01:05:38,230 --> 01:05:35,200 evolved into the national aeronautics 1693 01:05:40,870 --> 01:05:38,240 and space administration 1694 01:05:42,630 --> 01:05:40,880 as many of you know naca engineers and 1695 01:05:44,470 --> 01:05:42,640 managers formed the leading edge of 1696 01:05:47,349 --> 01:05:44,480 nasa's human space flight program of the 1697 01:05:50,309 --> 01:05:47,359 1960s and beyond it was not clear in 1698 01:05:52,309 --> 01:05:50,319 1958 who would steward america's first 1699 01:05:55,109 --> 01:05:52,319 human space flight program but an 1700 01:05:57,349 --> 01:05:55,119 impassioned appeal by naca director hugh 1701 01:06:00,309 --> 01:05:57,359 dryden to presidential science advisor 1702 01:06:02,309 --> 01:06:00,319 james killian in 1958 made it clear to 1703 01:06:04,549 --> 01:06:02,319 the eisenhower administration that the 1704 01:06:06,309 --> 01:06:04,559 naca was the natural home for human 1705 01:06:08,069 --> 01:06:06,319 space flight research given the 1706 01:06:09,990 --> 01:06:08,079 organization's experience with 1707 01:06:13,029 --> 01:06:10,000 experimental flight research and its 1708 01:06:15,349 --> 01:06:13,039 diverse pool of talent from engineers to 1709 01:06:17,910 --> 01:06:15,359 pilots 1710 01:06:21,190 --> 01:06:17,920 when the naca was absorbed into nasa in 1711 01:06:23,430 --> 01:06:21,200 1958 the research cultures of naca field 1712 01:06:26,630 --> 01:06:23,440 centers were absorbed into it along with 1713 01:06:28,230 --> 01:06:26,640 naca's engineers and scientists indeed 1714 01:06:30,549 --> 01:06:28,240 one can draw a direct line from the 1715 01:06:32,630 --> 01:06:30,559 advanced aeronautical work of the naca 1716 01:06:34,390 --> 01:06:32,640 to nasa's human spaceflight program 1717 01:06:36,470 --> 01:06:34,400 which challenged the same scientists and 1718 01:06:39,029 --> 01:06:36,480 engineers who explored aviation to 1719 01:06:41,910 --> 01:06:39,039 tackle new challenges in space 1720 01:06:44,470 --> 01:06:41,920 the names of some of these individuals 1721 01:06:46,390 --> 01:06:44,480 max feiger caldwell johnson can be found 1722 01:06:48,549 --> 01:06:46,400 on the patents for the space vehicles 1723 01:06:50,630 --> 01:06:48,559 they would eventually invent 1724 01:06:52,630 --> 01:06:50,640 spacecraft designers at a time when 1725 01:06:54,710 --> 01:06:52,640 spacecraft designer was not yet a 1726 01:06:56,390 --> 01:06:54,720 recognized profession they applied 1727 01:06:58,309 --> 01:06:56,400 decades of knowledge working for 1728 01:07:00,630 --> 01:06:58,319 america's first civilian aeronautical 1729 01:07:02,789 --> 01:07:00,640 laboratory the naca facility at langley 1730 01:07:05,029 --> 01:07:02,799 field to make the united states a space 1731 01:07:06,309 --> 01:07:05,039 faring nation 1732 01:07:08,789 --> 01:07:06,319 science 1733 01:07:11,670 --> 01:07:08,799 not stunts or a slavish devotion to the 1734 01:07:14,069 --> 01:07:11,680 past was the hallmark of their work 1735 01:07:15,990 --> 01:07:14,079 joining the naca as a research scientist 1736 01:07:18,630 --> 01:07:16,000 after his naval service during world war 1737 01:07:20,710 --> 01:07:18,640 ii max fager led the design work in 1738 01:07:22,470 --> 01:07:20,720 langley's pilotless aircraft research 1739 01:07:24,710 --> 01:07:22,480 division before committing an active 1740 01:07:26,470 --> 01:07:24,720 aeronautical blasphemy rejecting a 1741 01:07:28,789 --> 01:07:26,480 winged vehicle as america's first 1742 01:07:31,349 --> 01:07:28,799 spaceship in favor of a rocket boosted 1743 01:07:33,190 --> 01:07:31,359 blunt body capsule suggested by naca 1744 01:07:35,510 --> 01:07:33,200 engineer harvey allen 1745 01:07:37,510 --> 01:07:35,520 collaborative disruptive science became 1746 01:07:39,829 --> 01:07:37,520 the hallmark of work at langley and 1747 01:07:42,789 --> 01:07:39,839 other naca facilities 1748 01:07:45,270 --> 01:07:42,799 while nasa beginning in 1958 would 1749 01:07:47,589 --> 01:07:45,280 continue to and to expand the work done 1750 01:07:49,510 --> 01:07:47,599 at langley the essential architecture of 1751 01:07:52,390 --> 01:07:49,520 america's first human space flight 1752 01:07:54,470 --> 01:07:52,400 program project mercury was the creation 1753 01:07:56,870 --> 01:07:54,480 of the naca 1754 01:08:00,470 --> 01:07:56,880 this inventive culture extended from the 1755 01:08:03,589 --> 01:08:00,480 naa's ncaa naca scientists and engineers 1756 01:08:06,549 --> 01:08:03,599 to its research pilots 1757 01:08:09,829 --> 01:08:06,559 the period i want to examine today 1959 1758 01:08:11,750 --> 01:08:09,839 through 1969 was one steeped in the naca 1759 01:08:13,670 --> 01:08:11,760 flying culture that professor hansen has 1760 01:08:15,430 --> 01:08:13,680 already introduced for us 1761 01:08:17,590 --> 01:08:15,440 in a space race that seemed to be 1762 01:08:18,709 --> 01:08:17,600 slipping further out of america's grasp 1763 01:08:20,550 --> 01:08:18,719 every day 1764 01:08:22,390 --> 01:08:20,560 test pilot astronauts soon came to 1765 01:08:24,870 --> 01:08:22,400 represent the public face of american 1766 01:08:27,269 --> 01:08:24,880 space exploration and serve as a 1767 01:08:28,950 --> 01:08:27,279 reminder to an anxious public that what 1768 01:08:30,630 --> 01:08:28,960 was at stake was something more than 1769 01:08:33,110 --> 01:08:30,640 impressive machines 1770 01:08:35,990 --> 01:08:33,120 exploring space might seem glorious and 1771 01:08:38,149 --> 01:08:36,000 dangerous but if pursued soundly by men 1772 01:08:41,269 --> 01:08:38,159 who carried the naca's values with them 1773 01:08:47,349 --> 01:08:41,279 into the cosmos it could bring a new era 1774 01:08:47,359 --> 01:08:50,070 the 1775 01:08:55,510 --> 01:08:52,709 naca's connections to nasa's astronaut 1776 01:08:57,349 --> 01:08:55,520 corps are deep but not obvious of the 1777 01:08:59,829 --> 01:08:57,359 first two selection groups of american 1778 01:09:01,749 --> 01:08:59,839 astronauts only one neil armstrong had 1779 01:09:03,669 --> 01:09:01,759 flown for the naca 1780 01:09:05,189 --> 01:09:03,679 naca pilots though had always been 1781 01:09:07,189 --> 01:09:05,199 considered among the most likely 1782 01:09:10,149 --> 01:09:07,199 candidates for america's first human 1783 01:09:11,829 --> 01:09:10,159 space flight program in 1958 the united 1784 01:09:14,149 --> 01:09:11,839 states air force made an informal 1785 01:09:16,950 --> 01:09:14,159 preliminary selection of potential crew 1786 01:09:19,030 --> 01:09:16,960 members for its man in space soonest 1787 01:09:21,110 --> 01:09:19,040 project which would attempt to orbit a 1788 01:09:22,789 --> 01:09:21,120 piloted capsule launched atop a 1789 01:09:25,269 --> 01:09:22,799 ballistic missile 1790 01:09:28,309 --> 01:09:25,279 this list comprised nine respected u.s 1791 01:09:29,829 --> 01:09:28,319 air force and naca test pilots including 1792 01:09:32,470 --> 01:09:29,839 armstrong 1793 01:09:34,390 --> 01:09:32,480 when nasa absorbed the naca and assumed 1794 01:09:37,669 --> 01:09:34,400 control of manned space flight in august 1795 01:09:40,470 --> 01:09:37,679 1958 the air force canceled the miss 1796 01:09:42,709 --> 01:09:40,480 project but naca personnel remained 1797 01:09:45,590 --> 01:09:42,719 influential in the selection of nasa's 1798 01:09:47,910 --> 01:09:45,600 early astronauts 1799 01:09:50,229 --> 01:09:47,920 the individuals ultimately responsible 1800 01:09:53,349 --> 01:09:50,239 for selecting america's first astronauts 1801 01:09:55,750 --> 01:09:53,359 themselves former naca managers insisted 1802 01:09:57,750 --> 01:09:55,760 that first and foremost all of the men 1803 01:09:59,990 --> 01:09:57,760 chosen as astronauts would be test 1804 01:10:03,350 --> 01:10:00,000 pilots in government service 1805 01:10:06,070 --> 01:10:03,360 in november 1958 nasa's new space task 1806 01:10:08,229 --> 01:10:06,080 group a fledgling fledgling human space 1807 01:10:10,630 --> 01:10:08,239 flight initiative based in a nondescript 1808 01:10:12,550 --> 01:10:10,640 office building near and near the old 1809 01:10:14,709 --> 01:10:12,560 naca langley field research center in 1810 01:10:16,790 --> 01:10:14,719 virginia requested permission from the 1811 01:10:19,350 --> 01:10:16,800 civil service commission to hire 40 1812 01:10:22,229 --> 01:10:19,360 scientific specialists with demonstrated 1813 01:10:24,550 --> 01:10:22,239 experience in quote hazardous rigorous 1814 01:10:25,830 --> 01:10:24,560 and stressful experience including test 1815 01:10:27,510 --> 01:10:25,840 piloting 1816 01:10:30,470 --> 01:10:27,520 following publication in the federal 1817 01:10:32,470 --> 01:10:30,480 register on december 9th 1958 though 1818 01:10:34,870 --> 01:10:32,480 nasa pulled the announcement as space 1819 01:10:37,350 --> 01:10:34,880 task group members like former naca and 1820 01:10:38,950 --> 01:10:37,360 engineer manager robert gilruth began 1821 01:10:41,430 --> 01:10:38,960 leaning toward a force comprised 1822 01:10:43,350 --> 01:10:41,440 entirely of government test pilots whom 1823 01:10:45,750 --> 01:10:43,360 nasa could recruit and select outside of 1824 01:10:47,669 --> 01:10:45,760 normal civil service procedures 1825 01:10:50,709 --> 01:10:47,679 in addition to active duty military 1826 01:10:53,510 --> 01:10:50,719 aviators gilruth and former naca 1827 01:10:55,430 --> 01:10:53,520 colleague george lowe solicited naca 1828 01:10:57,910 --> 01:10:55,440 test pilots at various nasa field 1829 01:10:59,830 --> 01:10:57,920 centers these were the only civilians 1830 01:11:01,350 --> 01:10:59,840 nasa considered for what would become 1831 01:11:03,830 --> 01:11:01,360 project mercury 1832 01:11:06,390 --> 01:11:03,840 ultimately none joined nasa's effort but 1833 01:11:08,310 --> 01:11:06,400 mostly because they were in many cases 1834 01:11:10,870 --> 01:11:08,320 already committed to high-speed 1835 01:11:13,110 --> 01:11:10,880 high-altitude research projects in order 1836 01:11:15,350 --> 01:11:13,120 to attract these pilots nasa would need 1837 01:11:17,990 --> 01:11:15,360 to demonstrate the same professionalism 1838 01:11:19,350 --> 01:11:18,000 with project mercury as the naca had 1839 01:11:21,430 --> 01:11:19,360 always demonstrated with its 1840 01:11:24,149 --> 01:11:21,440 experimental programs 1841 01:11:26,709 --> 01:11:24,159 even without the direct participation of 1842 01:11:29,350 --> 01:11:26,719 naca pilots as flight crews though 1843 01:11:32,310 --> 01:11:29,360 enough naca personnel participated in 1844 01:11:34,390 --> 01:11:32,320 and supervised nasa operations to ensure 1845 01:11:38,950 --> 01:11:34,400 cultural continuity between project 1846 01:11:41,510 --> 01:11:38,960 mercury and earlier flight test efforts 1847 01:11:43,830 --> 01:11:41,520 for nasa's early astronauts robert 1848 01:11:47,350 --> 01:11:43,840 gilruth a minnesota born aeronautical 1849 01:11:49,110 --> 01:11:47,360 engineer who had joined the naca in 1937 1850 01:11:51,189 --> 01:11:49,120 became the most important face of nasa 1851 01:11:53,430 --> 01:11:51,199 management and the individual with the 1852 01:11:54,870 --> 01:11:53,440 most direct control over the astronauts 1853 01:11:57,110 --> 01:11:54,880 working lives 1854 01:11:59,990 --> 01:11:57,120 after world war ii gilruth had risen 1855 01:12:01,510 --> 01:12:00,000 rapidly in the naca's ranks becoming 1856 01:12:03,669 --> 01:12:01,520 becoming one of its highest paid 1857 01:12:06,790 --> 01:12:03,679 managers by 1948. 1858 01:12:08,950 --> 01:12:06,800 shortly after nasa's formation in 1958 1859 01:12:11,110 --> 01:12:08,960 administrator t keith glennon had 1860 01:12:12,390 --> 01:12:11,120 assigned gilruth to chair the space task 1861 01:12:14,070 --> 01:12:12,400 group 1862 01:12:16,229 --> 01:12:14,080 if german immigrate rocket designer 1863 01:12:18,070 --> 01:12:16,239 verner von braun epitomized america's 1864 01:12:20,709 --> 01:12:18,080 rocket-making leadership before and 1865 01:12:22,390 --> 01:12:20,719 after nasa's formation gilruth with a 1866 01:12:24,149 --> 01:12:22,400 much lower public profile 1867 01:12:26,790 --> 01:12:24,159 and three dozen engineers under his 1868 01:12:27,990 --> 01:12:26,800 direction spoke for its test pilots and 1869 01:12:29,830 --> 01:12:28,000 managed the problems of human 1870 01:12:31,750 --> 01:12:29,840 spaceflight including the creation of 1871 01:12:35,030 --> 01:12:31,760 spacecraft and the recruitment of the 1872 01:12:39,990 --> 01:12:37,110 though often drawn to the allure and 1873 01:12:42,070 --> 01:12:40,000 danger of flying test pilots as we've 1874 01:12:44,550 --> 01:12:42,080 all learned were and are far more 1875 01:12:46,390 --> 01:12:44,560 studious and responsible than they seem 1876 01:12:48,870 --> 01:12:46,400 the early test parts test pilots were 1877 01:12:51,030 --> 01:12:48,880 able ambitious and aggressive men but 1878 01:12:53,189 --> 01:12:51,040 they were neither heroic inventors nor 1879 01:12:55,669 --> 01:12:53,199 captains of industry rather they were 1880 01:12:57,910 --> 01:12:55,679 elite technologists who despite certain 1881 01:12:59,750 --> 01:12:57,920 unique personality traits and uncommon 1882 01:13:01,669 --> 01:12:59,760 abilities had succeeded in large 1883 01:13:03,430 --> 01:13:01,679 organizations known for their often 1884 01:13:05,510 --> 01:13:03,440 limited autonomy and highly 1885 01:13:06,790 --> 01:13:05,520 circumscribed standards of conduct and 1886 01:13:09,590 --> 01:13:06,800 performance 1887 01:13:11,990 --> 01:13:09,600 flight testing as we learned emphasized 1888 01:13:15,110 --> 01:13:12,000 not radical handling and death defying 1889 01:13:16,709 --> 01:13:15,120 stunts but a slow incremental process 1890 01:13:18,950 --> 01:13:16,719 through which the characteristics of new 1891 01:13:20,870 --> 01:13:18,960 aircraft are evaluated in a series of 1892 01:13:23,350 --> 01:13:20,880 choreographed maneuvers 1893 01:13:25,030 --> 01:13:23,360 followed as former test pilot and nasa 1894 01:13:26,709 --> 01:13:25,040 astronaut and 1895 01:13:28,229 --> 01:13:26,719 national air and space museum director 1896 01:13:31,350 --> 01:13:28,239 michael collins later recounted by 1897 01:13:33,830 --> 01:13:31,360 laborious data analysis to outsiders the 1898 01:13:36,709 --> 01:13:33,840 test pilots seemed to be foolhardy men 1899 01:13:38,630 --> 01:13:36,719 who lived life on the edge to the pilots 1900 01:13:39,750 --> 01:13:38,640 their work was as dull as it was 1901 01:13:41,750 --> 01:13:39,760 dangerous 1902 01:13:43,590 --> 01:13:41,760 requiring a more diverse set of skills 1903 01:13:47,990 --> 01:13:43,600 than those that had equipped previous 1904 01:13:50,630 --> 01:13:48,000 generations of aces and barnstormers 1905 01:13:53,910 --> 01:13:50,640 though later critics likened america's 1906 01:13:55,910 --> 01:13:53,920 first astronauts to lab rats nasa sought 1907 01:13:58,310 --> 01:13:55,920 promising career aviators with 1908 01:14:01,510 --> 01:13:58,320 substantial time in the cockpit not the 1909 01:14:04,310 --> 01:14:01,520 nation's youngest or most docile pilots 1910 01:14:05,990 --> 01:14:04,320 as one examiner later noted astronauts 1911 01:14:08,310 --> 01:14:06,000 would be responsible for more than 1912 01:14:11,270 --> 01:14:08,320 merely providing biomedical data 1913 01:14:13,669 --> 01:14:11,280 operating experiments or even flying 1914 01:14:15,590 --> 01:14:13,679 nasa hoped its astronaut pilots would 1915 01:14:17,750 --> 01:14:15,600 demonstrate evidence 1916 01:14:20,070 --> 01:14:17,760 evidence of sufficient drive and 1917 01:14:22,229 --> 01:14:20,080 creativity to ensure positive 1918 01:14:23,270 --> 01:14:22,239 contributions to the development of the 1919 01:14:25,669 --> 01:14:23,280 vehicle 1920 01:14:27,990 --> 01:14:25,679 and therefore nasa sought out promising 1921 01:14:29,910 --> 01:14:28,000 well-qualified fliers with substantial 1922 01:14:32,149 --> 01:14:29,920 engineering training 1923 01:14:34,149 --> 01:14:32,159 adopting the model of naca research 1924 01:14:36,709 --> 01:14:34,159 pilots the astronauts took this 1925 01:14:38,709 --> 01:14:36,719 responsibility seriously determined to 1926 01:14:40,950 --> 01:14:38,719 not only contribute to the space program 1927 01:14:42,709 --> 01:14:40,960 but to impress the larger test pilot 1928 01:14:44,470 --> 01:14:42,719 community with their efforts 1929 01:14:47,270 --> 01:14:44,480 they were not alone 1930 01:14:49,189 --> 01:14:47,280 with the support of the former naca's 1931 01:14:51,030 --> 01:14:49,199 gill ruth and fager the astronauts 1932 01:14:54,870 --> 01:14:51,040 insinuated themselves into vehicle 1933 01:14:59,669 --> 01:14:57,030 as nasa's project mercury astronauts 1934 01:15:03,110 --> 01:14:59,679 deke slayton wally sherrah and alan 1935 01:15:05,189 --> 01:15:03,120 shepard explained to journalists in 1959 1936 01:15:07,189 --> 01:15:05,199 they and their fellow test pilots had 1937 01:15:08,470 --> 01:15:07,199 not been hired by nasa to sign 1938 01:15:10,709 --> 01:15:08,480 autographs 1939 01:15:12,149 --> 01:15:10,719 pose for photographs or even fly 1940 01:15:14,070 --> 01:15:12,159 aircraft 1941 01:15:15,910 --> 01:15:14,080 rather continuing a tradition of 1942 01:15:19,110 --> 01:15:15,920 experimental flight pioneered by the 1943 01:15:21,990 --> 01:15:19,120 naca the new aerospace agency had hired 1944 01:15:24,470 --> 01:15:22,000 professional empiricists to design and 1945 01:15:26,149 --> 01:15:24,480 conduct audacious flight experiments 1946 01:15:30,870 --> 01:15:26,159 experiments that would push the limits 1947 01:15:32,630 --> 01:15:30,880 of speed altitude and human ability 1948 01:15:34,470 --> 01:15:32,640 in the astronauts firsthand account of 1949 01:15:36,470 --> 01:15:34,480 their work we7 1950 01:15:38,310 --> 01:15:36,480 deke slayton recounted how the men upon 1951 01:15:40,149 --> 01:15:38,320 their arrival in nasa had divided 1952 01:15:42,470 --> 01:15:40,159 various engineering aspects of project 1953 01:15:45,030 --> 01:15:42,480 mercury among them scott carpenter to 1954 01:15:47,669 --> 01:15:45,040 navigation gordon cooper to the redstone 1955 01:15:49,590 --> 01:15:47,679 john glenn to cockpit design gus grissom 1956 01:15:51,270 --> 01:15:49,600 to flight controls wally sharata 1957 01:15:53,669 --> 01:15:51,280 spacesuit development alan shepard to 1958 01:15:54,870 --> 01:15:53,679 recovery systems slayton to the atlas 1959 01:15:56,790 --> 01:15:54,880 launch vehicle 1960 01:15:59,430 --> 01:15:56,800 astronauts took these took to these 1961 01:16:01,270 --> 01:15:59,440 assignments with alacrity and enthusiasm 1962 01:16:02,709 --> 01:16:01,280 exploiting their notoriety to push 1963 01:16:04,630 --> 01:16:02,719 design changes 1964 01:16:06,149 --> 01:16:04,640 grissom in particular was so obsessed 1965 01:16:08,070 --> 01:16:06,159 with the design of the capsules 1966 01:16:09,990 --> 01:16:08,080 autopilots leighton recalled that one 1967 01:16:11,750 --> 01:16:10,000 nasa manager eventually exclaimed that 1968 01:16:13,350 --> 01:16:11,760 if the device did not work it would be 1969 01:16:15,430 --> 01:16:13,360 grissom's fault 1970 01:16:17,510 --> 01:16:15,440 robert gilruth encouraged the astronauts 1971 01:16:19,830 --> 01:16:17,520 to push for a redesign of equipment they 1972 01:16:22,470 --> 01:16:19,840 felt unsuitable and later recalled the 1973 01:16:24,310 --> 01:16:22,480 men as doing excellent work quote people 1974 01:16:26,229 --> 01:16:24,320 used to tell me that i had no control 1975 01:16:28,470 --> 01:16:26,239 over the astronauts gilruth later 1976 01:16:29,750 --> 01:16:28,480 remarked i tell you those boys were 1977 01:16:31,830 --> 01:16:29,760 wonderful 1978 01:16:33,990 --> 01:16:31,840 as the ones ultimately responsible for 1979 01:16:35,990 --> 01:16:34,000 flying the vehicles the astronauts 1980 01:16:38,790 --> 01:16:36,000 argued that they possessed the best idea 1981 01:16:39,830 --> 01:16:38,800 of what would and would not work in 1982 01:16:41,590 --> 01:16:39,840 space 1983 01:16:44,070 --> 01:16:41,600 and they enjoyed the support from 1984 01:16:46,310 --> 01:16:44,080 gilrouth which made the astronauts vital 1985 01:16:48,630 --> 01:16:46,320 arbiters in the design process 1986 01:16:51,030 --> 01:16:48,640 we decided that since we were the test 1987 01:16:52,870 --> 01:16:51,040 pilots who would be flying the thing 1988 01:16:55,669 --> 01:16:52,880 we had the right to stir things up a bit 1989 01:16:59,030 --> 01:16:55,679 slayton recalled that is what they had 1990 01:17:02,470 --> 01:17:00,950 interactions between astronauts and 1991 01:17:04,709 --> 01:17:02,480 ground engineers 1992 01:17:05,830 --> 01:17:04,719 were occasionally chilly but always 1993 01:17:07,750 --> 01:17:05,840 productive 1994 01:17:09,669 --> 01:17:07,760 quote we had a fair amount of prestige 1995 01:17:11,590 --> 01:17:09,679 around the country noted wali shara at 1996 01:17:13,430 --> 01:17:11,600 the time and though we did not always 1997 01:17:15,590 --> 01:17:13,440 succeed in getting what we wanted we 1998 01:17:16,390 --> 01:17:15,600 sometimes ganged up all seven of us 1999 01:17:18,310 --> 01:17:16,400 together 2000 01:17:20,070 --> 01:17:18,320 the extra weight helped us to win at 2001 01:17:22,149 --> 01:17:20,080 least a compromise 2002 01:17:24,870 --> 01:17:22,159 astronauts valued robust design 2003 01:17:27,189 --> 01:17:24,880 redundancy and flexible operation 2004 01:17:28,870 --> 01:17:27,199 engineers favored precision systems 2005 01:17:30,390 --> 01:17:28,880 making efficient use of volume and 2006 01:17:32,470 --> 01:17:30,400 weight limitations 2007 01:17:34,550 --> 01:17:32,480 often the proposed design changes like 2008 01:17:36,390 --> 01:17:34,560 the addition of a window to the mercury 2009 01:17:38,149 --> 01:17:36,400 spacecraft were remedied with actually 2010 01:17:40,390 --> 01:17:38,159 very little debate 2011 01:17:42,229 --> 01:17:40,400 to some nasa engineers the astronauts 2012 01:17:44,070 --> 01:17:42,239 insistence on redesigning capsule 2013 01:17:46,070 --> 01:17:44,080 hardware to suit their tastes may have 2014 01:17:47,830 --> 01:17:46,080 been infuriating but the astronauts 2015 01:17:50,310 --> 01:17:47,840 participation in mercury engineering 2016 01:17:52,310 --> 01:17:50,320 work never rose to the level of mutiny 2017 01:17:54,950 --> 01:17:52,320 indeed the astronauts independence was a 2018 01:17:57,350 --> 01:17:54,960 professional mindset borrowed from naca 2019 01:17:59,030 --> 01:17:57,360 flight test programs and encouraged by 2020 01:18:01,350 --> 01:17:59,040 space task group managers who were 2021 01:18:04,790 --> 01:18:01,360 disposed to trust test pilots and wanted 2022 01:18:07,030 --> 01:18:04,800 to exploit their skills and expertise 2023 01:18:09,110 --> 01:18:07,040 nor did their attention to detail unduly 2024 01:18:11,270 --> 01:18:09,120 delay the space program 2025 01:18:12,870 --> 01:18:11,280 as air force and nasa managers debated 2026 01:18:15,030 --> 01:18:12,880 selection criteria for astronaut 2027 01:18:17,110 --> 01:18:15,040 candidates in the late 1950s in the 2028 01:18:18,630 --> 01:18:17,120 soviet union a similar controversy had 2029 01:18:21,030 --> 01:18:18,640 raged between two conceptions of the 2030 01:18:22,950 --> 01:18:21,040 space traveler with advocates of a less 2031 01:18:24,790 --> 01:18:22,960 independent pilot role eventually 2032 01:18:26,950 --> 01:18:24,800 prevailing 2033 01:18:28,390 --> 01:18:26,960 naca engineers had always been more 2034 01:18:30,149 --> 01:18:28,400 concerned with promulgating good 2035 01:18:32,950 --> 01:18:30,159 engineering practice than establishing 2036 01:18:34,790 --> 01:18:32,960 high profile records and laborious 2037 01:18:37,270 --> 01:18:34,800 occasionally time-consuming testing of 2038 01:18:39,590 --> 01:18:37,280 boosters and subsystems was fundamental 2039 01:18:41,990 --> 01:18:39,600 to the american design process 2040 01:18:44,070 --> 01:18:42,000 nasa as astronaut john glenn asserted 2041 01:18:47,669 --> 01:18:44,080 wish to be quote right 2042 01:18:51,990 --> 01:18:49,510 in a space race characterized by 2043 01:18:54,229 --> 01:18:52,000 occasional stunts nasa's methodical 2044 01:18:56,550 --> 01:18:54,239 testing of launch and space vehicles 2045 01:18:58,709 --> 01:18:56,560 placed a premium on safety and regarded 2046 01:19:00,229 --> 01:18:58,719 astronauts as key members of a flight 2047 01:19:03,350 --> 01:19:00,239 test program 2048 01:19:05,030 --> 01:19:03,360 writing in 1966 kenneth keniston seized 2049 01:19:07,270 --> 01:19:05,040 upon the technical expertise of 2050 01:19:09,669 --> 01:19:07,280 astronauts and not their flying skills 2051 01:19:10,870 --> 01:19:09,679 or supposed heroism as their defining 2052 01:19:14,149 --> 01:19:10,880 trait 2053 01:19:16,709 --> 01:19:14,159 shira for example spoke of the hotshot 2054 01:19:18,470 --> 01:19:16,719 pilot as not just a scarf and goggles 2055 01:19:20,470 --> 01:19:18,480 type but one who could use his 2056 01:19:24,070 --> 01:19:20,480 engineering confidence to work on 2057 01:19:26,550 --> 01:19:24,080 systems and make the best airplane ever 2058 01:19:27,750 --> 01:19:26,560 even more request respected by nasa than 2059 01:19:29,990 --> 01:19:27,760 machine like 2060 01:19:32,390 --> 01:19:30,000 reliability was the pilot astronaut's 2061 01:19:33,990 --> 01:19:32,400 imper imperturb ability in the face of 2062 01:19:36,149 --> 01:19:34,000 mechanical failure 2063 01:19:37,990 --> 01:19:36,159 such resourcefulness validated human 2064 01:19:39,910 --> 01:19:38,000 piloting and advertised the unique 2065 01:19:41,510 --> 01:19:39,920 skills present within the burgeoning 2066 01:19:44,709 --> 01:19:41,520 astronaut corps 2067 01:19:46,470 --> 01:19:44,719 indeed writing in 1964 on the results of 2068 01:19:48,229 --> 01:19:46,480 the mercury flights air force 2069 01:19:49,990 --> 01:19:48,239 psychiatrists noted that for one 2070 01:19:51,590 --> 01:19:50,000 astronaut they interviewed the quote 2071 01:19:53,189 --> 01:19:51,600 failure of automatic instruments 2072 01:19:55,910 --> 01:19:53,199 intensified the feelings of personal 2073 01:19:58,070 --> 01:19:55,920 contribution and success to the mission 2074 01:20:00,950 --> 01:19:58,080 time and again astronauts demonstrated 2075 01:20:02,630 --> 01:20:00,960 these talents in 1966 armstrong 2076 01:20:05,110 --> 01:20:02,640 recovered from a potentially lethal 2077 01:20:06,470 --> 01:20:05,120 in-flight mishap on the gemini 8 flight 2078 01:20:08,390 --> 01:20:06,480 summoning up enough strength and 2079 01:20:10,870 --> 01:20:08,400 coordination to end an uncontrollable 2080 01:20:12,550 --> 01:20:10,880 spin that threatened to live leave him 2081 01:20:15,830 --> 01:20:12,560 and pilot dave scott 2082 01:20:19,350 --> 01:20:18,390 like the naca test pilots who preceded 2083 01:20:21,510 --> 01:20:19,360 them 2084 01:20:23,430 --> 01:20:21,520 the test pilots who became america's 2085 01:20:25,189 --> 01:20:23,440 first astronauts combine traditional 2086 01:20:27,270 --> 01:20:25,199 piloting skills with the kind of 2087 01:20:29,669 --> 01:20:27,280 technical and managerial expertise 2088 01:20:32,229 --> 01:20:29,679 increasingly necessary in test flying 2089 01:20:35,350 --> 01:20:32,239 and indeed in all of modern society 2090 01:20:37,669 --> 01:20:35,360 quote in earlier flight one 1959 air 2091 01:20:40,709 --> 01:20:37,679 force publication concluded flying 2092 01:20:43,270 --> 01:20:40,719 entailed a high level of psychomotor 2093 01:20:46,149 --> 01:20:43,280 ability for example in the coordinated 2094 01:20:47,669 --> 01:20:46,159 manipulation of stick rudder bar and 2095 01:20:50,070 --> 01:20:47,679 throttle 2096 01:20:52,070 --> 01:20:50,080 at present advances in mechanical 2097 01:20:53,910 --> 01:20:52,080 systems have review have reduced these 2098 01:20:55,990 --> 01:20:53,920 functions essentially to those of 2099 01:20:57,030 --> 01:20:56,000 information processing and decision 2100 01:20:59,510 --> 01:20:57,040 making 2101 01:21:01,750 --> 01:20:59,520 this change though required more from 2102 01:21:04,790 --> 01:21:01,760 aviators not less 2103 01:21:06,550 --> 01:21:04,800 and nasa's astronauts easily met this 2104 01:21:08,790 --> 01:21:06,560 challenge 2105 01:21:11,750 --> 01:21:08,800 ten years after the air force wrote of 2106 01:21:14,070 --> 01:21:11,760 the changing skill set of pilots former 2107 01:21:16,070 --> 01:21:14,080 naca test pilot neil armstrong would 2108 01:21:18,709 --> 01:21:16,080 demonstrate a mastery of these diverse 2109 01:21:21,189 --> 01:21:18,719 skills when he with lunar module pilot 2110 01:21:23,910 --> 01:21:21,199 edwin buzz aldrin landed eagle on the 2111 01:21:31,430 --> 01:21:23,920 lunar surface 2112 01:21:34,470 --> 01:21:32,790 we've had i think an extraordinary 2113 01:21:36,229 --> 01:21:34,480 session i'd like you to join me in 2114 01:21:41,350 --> 01:21:36,239 giving another round of applause for all 2115 01:21:44,870 --> 01:21:43,189 we now have the same protocol that we've 2116 01:21:47,830 --> 01:21:44,880 followed for the rest of the day if you 2117 01:21:49,750 --> 01:21:47,840 wish to offer a question come forth sign 2118 01:21:52,070 --> 01:21:49,760 a release form and then 2119 01:22:01,510 --> 01:21:52,080 state your identity before posing your 2120 01:22:12,709 --> 01:22:02,870 it's the end of the day but it's not 2121 01:22:12,719 --> 01:22:16,709 come on down 2122 01:22:19,669 --> 01:22:17,990 hi sean 2123 01:22:21,590 --> 01:22:19,679 um i had a question for 2124 01:22:23,270 --> 01:22:21,600 mainly for jeremy but also for everyone 2125 01:22:26,390 --> 01:22:23,280 else on the panel um looking at 2126 01:22:28,709 --> 01:22:26,400 propellers in the 50s because i remember 2127 01:22:31,270 --> 01:22:28,719 look during iraq two 2128 01:22:32,950 --> 01:22:31,280 reading stories about how these jets 2129 01:22:34,709 --> 01:22:32,960 were just they were going so fast they 2130 01:22:35,669 --> 01:22:34,719 couldn't do any sort of surveillance on 2131 01:22:38,229 --> 01:22:35,679 the ground 2132 01:22:40,149 --> 01:22:38,239 turning back to these propeller aircraft 2133 01:22:42,229 --> 01:22:40,159 is there anything along those lines that 2134 01:22:44,229 --> 01:22:42,239 you've picked up where individuals are 2135 01:22:46,390 --> 01:22:44,239 saying these propeller aircraft have a 2136 01:22:48,390 --> 01:22:46,400 real purpose we need to continue to 2137 01:22:49,990 --> 01:22:48,400 research them especially um 2138 01:22:52,870 --> 01:22:50,000 pre-satellite where they're not able to 2139 01:22:54,790 --> 01:22:52,880 come in and and do uh observations that 2140 01:22:59,430 --> 01:22:54,800 way 2141 01:23:01,910 --> 01:22:59,440 driven airplane becomes in the 50s 60s 2142 01:23:03,430 --> 01:23:01,920 and 70s is a reflection of that 2143 01:23:06,470 --> 01:23:03,440 technology 2144 01:23:07,430 --> 01:23:06,480 advancement in the 30s and 40s 2145 01:23:09,110 --> 01:23:07,440 and 2146 01:23:10,950 --> 01:23:09,120 so the idea is that that's carrying over 2147 01:23:12,709 --> 01:23:10,960 the technology but when the fuel crisis 2148 01:23:14,390 --> 01:23:12,719 comes and that's when another potential 2149 01:23:15,990 --> 01:23:14,400 reinvention of the propeller comes into 2150 01:23:18,149 --> 01:23:16,000 being 2151 01:23:20,390 --> 01:23:18,159 and overall the industry sees that well 2152 01:23:21,910 --> 01:23:20,400 we can take that technology off the 2153 01:23:23,590 --> 01:23:21,920 shelf 2154 01:23:25,669 --> 01:23:23,600 for combat aircraft especially in the 2155 01:23:27,750 --> 01:23:25,679 50s and 60s and we can use that so 2156 01:23:30,070 --> 01:23:27,760 there's no more work to be done so they 2157 01:23:31,830 --> 01:23:30,080 emphasize other things so industry is 2158 01:23:33,270 --> 01:23:31,840 actually quite anti-propeller in the 2159 01:23:35,590 --> 01:23:33,280 propeller 2160 01:23:37,990 --> 01:23:35,600 manufacturers have to diversify 2161 01:23:39,830 --> 01:23:38,000 as a result of that so there's this gap 2162 01:23:42,550 --> 01:23:39,840 in the 50s and 60s but by the time the 2163 01:23:43,750 --> 01:23:42,560 fuel crisis with the advanced turboprop 2164 01:23:45,590 --> 01:23:43,760 program 2165 01:23:47,030 --> 01:23:45,600 uh that the there's this potential 2166 01:23:49,430 --> 01:23:47,040 reinvention that takes place that's 2167 01:23:50,550 --> 01:23:49,440 still kind of hanging fire as we speak 2168 01:23:52,709 --> 01:23:50,560 speak as 2169 01:23:55,270 --> 01:23:52,719 uh fuel prices go up and down mostly 2170 01:23:57,510 --> 01:23:55,280 down now so so it's still there but it's 2171 01:23:59,990 --> 01:23:57,520 sort of a you know the idea though for 2172 01:24:05,910 --> 01:24:00,000 high performance aircraft is that the 2173 01:24:10,070 --> 01:24:07,990 larry burke i have another question for 2174 01:24:11,590 --> 01:24:10,080 jeremy it's a bit of an oddball question 2175 01:24:13,910 --> 01:24:11,600 maybe 2176 01:24:16,310 --> 01:24:13,920 did any of the propeller research find 2177 01:24:17,750 --> 01:24:16,320 its way back into improvements in the 2178 01:24:20,310 --> 01:24:17,760 wind tunnels 2179 01:24:22,070 --> 01:24:20,320 or are the two 2180 01:24:23,910 --> 01:24:22,080 too dissimilar 2181 01:24:25,030 --> 01:24:23,920 to take lessons from one and apply them 2182 01:24:27,030 --> 01:24:25,040 to the other 2183 01:24:28,390 --> 01:24:27,040 well i'll defer to an expert on wind 2184 01:24:30,550 --> 01:24:28,400 tunnel design 2185 01:24:32,550 --> 01:24:30,560 but you're in a wind tunnel it's a fan 2186 01:24:35,270 --> 01:24:32,560 and it's supposed to move air 2187 01:24:37,030 --> 01:24:35,280 uh consistently in a uniform manner but 2188 01:24:39,350 --> 01:24:37,040 it's not necessarily the same type of 2189 01:24:41,830 --> 01:24:39,360 technology would need for high thrust 2190 01:24:43,510 --> 01:24:41,840 and high performance uh so the designs 2191 01:24:45,910 --> 01:24:43,520 are a little bit different our you know 2192 01:24:47,430 --> 01:24:45,920 our artifact of the day the full-scale 2193 01:24:49,350 --> 01:24:47,440 tunnel fan that we have out in the 2194 01:24:52,229 --> 01:24:49,360 milestones of flight gallery that was 2195 01:24:54,550 --> 01:24:52,239 just installed uh it's a fixed pitch 2196 01:24:56,790 --> 01:24:54,560 propeller made out of wood and so that's 2197 01:24:58,629 --> 01:24:56,800 not necessarily an advanced technology 2198 01:25:00,070 --> 01:24:58,639 the original fan assembly in the 2199 01:25:02,629 --> 01:25:00,080 full-scale tunnel was made out of 2200 01:25:04,629 --> 01:25:02,639 aluminum alloy advanced technology but 2201 01:25:06,950 --> 01:25:04,639 actually vibrated and flexed too much so 2202 01:25:11,669 --> 01:25:06,960 they went back to what's considered old 2203 01:25:11,679 --> 01:25:16,310 other questions 2204 01:25:20,709 --> 01:25:18,709 i was struck by jeremy's last comment 2205 01:25:22,470 --> 01:25:20,719 it's fine to have a 2206 01:25:23,830 --> 01:25:22,480 wooden propeller and a metal hub it 2207 01:25:25,830 --> 01:25:23,840 doesn't work so well the other way 2208 01:25:28,629 --> 01:25:25,840 around there was a university that shall 2209 01:25:31,350 --> 01:25:28,639 remain nameless that had b-29 blades in 2210 01:25:33,110 --> 01:25:31,360 a wooden hub in their how in their 2211 01:25:35,830 --> 01:25:33,120 university wind tunnel and came rather 2212 01:25:37,910 --> 01:25:35,840 badly adrift one night 2213 01:25:40,070 --> 01:25:37,920 other questions 2214 01:25:41,350 --> 01:25:40,080 jim dick if we don't have questions from 2215 01:25:43,350 --> 01:25:41,360 the audience i have a question i'd like 2216 01:25:45,030 --> 01:25:43,360 to address to you and that is fine one 2217 01:25:47,590 --> 01:25:45,040 thing i didn't want to do in my talk 2218 01:25:49,590 --> 01:25:47,600 that i maybe should make explicit is is 2219 01:25:51,590 --> 01:25:49,600 do some kind of a tar brush on military 2220 01:25:53,669 --> 01:25:51,600 test pilots you know but the specific 2221 01:25:56,070 --> 01:25:53,679 remarks aren't that i quoted and those 2222 01:25:57,830 --> 01:25:56,080 are verbatim are armstrong's comments 2223 01:25:59,990 --> 01:25:57,840 about yeager yeah 2224 01:26:02,310 --> 01:26:00,000 i would guess i have never studied in 2225 01:26:03,350 --> 01:26:02,320 any detail the military test pilot 2226 01:26:04,950 --> 01:26:03,360 culture 2227 01:26:07,669 --> 01:26:04,960 i would think that it's very close to 2228 01:26:09,669 --> 01:26:07,679 the naca research culture so 2229 01:26:11,430 --> 01:26:09,679 in what way similar in what ways if any 2230 01:26:12,870 --> 01:26:11,440 different funny you should say because i 2231 01:26:15,270 --> 01:26:12,880 was about to make a little comment on 2232 01:26:17,990 --> 01:26:15,280 that um i had a i had a very good 2233 01:26:21,430 --> 01:26:18,000 fortune i did my i did a senior thesis 2234 01:26:24,550 --> 01:26:21,440 on flight testing in 1969 and 1970 and 2235 01:26:27,270 --> 01:26:24,560 in 1970 i had the chance to 2236 01:26:30,470 --> 01:26:27,280 have scott crossfield review it he was 2237 01:26:31,669 --> 01:26:30,480 very much a classic military pilot navy 2238 01:26:32,550 --> 01:26:31,679 background 2239 01:26:33,830 --> 01:26:32,560 went 2240 01:26:35,110 --> 01:26:33,840 through the university of washington 2241 01:26:37,350 --> 01:26:35,120 masters degree in aeronautical 2242 01:26:39,189 --> 01:26:37,360 engineering came down was hired by walt 2243 01:26:41,189 --> 01:26:39,199 williams flew then 2244 01:26:43,030 --> 01:26:41,199 at edwards for a number of years 2245 01:26:44,550 --> 01:26:43,040 then transitioned to 2246 01:26:47,110 --> 01:26:44,560 north american because he was so 2247 01:26:49,750 --> 01:26:47,120 involved in trying to get the x-15 going 2248 01:26:51,990 --> 01:26:49,760 in 1971 2249 01:26:54,070 --> 01:26:52,000 i made the acquaintance of chuck yeager 2250 01:26:55,510 --> 01:26:54,080 and coincidentally neil armstrong in 2251 01:26:57,110 --> 01:26:55,520 that same year 2252 01:26:58,229 --> 01:26:57,120 and both of them all three of these 2253 01:26:59,110 --> 01:26:58,239 individuals 2254 01:27:21,110 --> 01:26:59,120 i 2255 01:27:22,790 --> 01:27:21,120 all day 2256 01:27:25,510 --> 01:27:22,800 with a newly admitted graduate student 2257 01:27:27,510 --> 01:27:25,520 and gave me a one-on-one tutorial on 2258 01:27:29,430 --> 01:27:27,520 flight dynamics and high altitude flight 2259 01:27:31,030 --> 01:27:29,440 and regions of low dynamic pressure i 2260 01:27:32,629 --> 01:27:31,040 thought that was extraordinary i saw the 2261 01:27:34,790 --> 01:27:32,639 guy hung the moon 2262 01:27:36,790 --> 01:27:34,800 chuck yeager was defense had ashay in 2263 01:27:38,870 --> 01:27:36,800 pakistan at the time that i contacted 2264 01:27:41,830 --> 01:27:38,880 him he was in the midst of a very nasty 2265 01:27:44,229 --> 01:27:41,840 war between india and pakistan and yet 2266 01:27:46,470 --> 01:27:44,239 he took the time to extract material 2267 01:27:48,550 --> 01:27:46,480 from his log books and patiently answer 2268 01:27:50,149 --> 01:27:48,560 a questionnaire that i sent i thought 2269 01:27:52,229 --> 01:27:50,159 that was that was kind of impressive 2270 01:27:55,270 --> 01:27:52,239 itself later on then i i worked pretty 2271 01:27:58,550 --> 01:27:55,280 closely uh with jaeger at 80 at edwards 2272 01:28:00,310 --> 01:27:58,560 in the uh 1980s and i had gotten to work 2273 01:28:01,910 --> 01:28:00,320 out of dryden as part of my dryden 2274 01:28:04,470 --> 01:28:01,920 contract when i was here at smithsonian 2275 01:28:06,229 --> 01:28:04,480 from the 1970s onwards there are 2276 01:28:08,310 --> 01:28:06,239 differences in the culture 2277 01:28:10,310 --> 01:28:08,320 but i would say this 2278 01:28:12,390 --> 01:28:10,320 we have to remember 2279 01:28:16,310 --> 01:28:12,400 a critical difference 2280 01:28:19,270 --> 01:28:16,320 there are pilots who fly fighters 2281 01:28:21,750 --> 01:28:19,280 and there are fighter pilots 2282 01:28:25,590 --> 01:28:21,760 the two are not the same 2283 01:28:30,229 --> 01:28:25,600 i have flown in fighters with both 2284 01:28:34,390 --> 01:28:30,239 f-104 f-105 f4 f15 2285 01:28:36,629 --> 01:28:34,400 f16 f15e that's my backseat experience 2286 01:28:38,310 --> 01:28:36,639 with these guys and i will tell you your 2287 01:28:39,910 --> 01:28:38,320 research pilots are excellent but your 2288 01:28:43,350 --> 01:28:39,920 fighter pilots are in a very different 2289 01:28:45,350 --> 01:28:43,360 world what jaeger considered himself he 2290 01:28:46,470 --> 01:28:45,360 always considered himself a fighter 2291 01:28:52,550 --> 01:28:46,480 pilot 2292 01:28:57,270 --> 01:28:54,390 you have to recognize there's two kinds 2293 01:28:58,629 --> 01:28:57,280 of right stuff there's a combat right 2294 01:29:00,709 --> 01:28:58,639 stuff 2295 01:29:02,550 --> 01:29:00,719 where the stakes of your life 2296 01:29:05,030 --> 01:29:02,560 and then there's a flight test right 2297 01:29:08,229 --> 01:29:05,040 stuff where the stakes are getting the 2298 01:29:09,990 --> 01:29:08,239 right information what i think 2299 01:29:13,270 --> 01:29:10,000 tom wolf mist 2300 01:29:15,590 --> 01:29:13,280 was confusing the sense of recklessness 2301 01:29:17,590 --> 01:29:15,600 with the sense of adventure in both you 2302 01:29:19,030 --> 01:29:17,600 have to have the sense of adventure but 2303 01:29:20,790 --> 01:29:19,040 not the sense of recklessness i'm 2304 01:29:22,229 --> 01:29:20,800 getting the cut off i'll be happy to 2305 01:29:23,990 --> 01:29:22,239 join you with the bar afterwards so we 2306 01:29:26,229 --> 01:29:24,000 can go in this in detail we've had a