1 00:00:01,310 --> 00:00:03,649 last item an agenda here is a wrap-up 2 00:00:03,649 --> 00:00:03,659 last item an agenda here is a wrap-up 3 00:00:03,659 --> 00:00:05,930 last item an agenda here is a wrap-up and returning to our own ed Saltzman for 4 00:00:05,930 --> 00:00:05,940 and returning to our own ed Saltzman for 5 00:00:05,940 --> 00:00:09,169 and returning to our own ed Saltzman for that that is currently a senior Aaron am 6 00:00:09,169 --> 00:00:09,179 that that is currently a senior Aaron am 7 00:00:09,179 --> 00:00:12,160 that that is currently a senior Aaron am assist with Ken transplanting research 8 00:00:12,160 --> 00:00:12,170 assist with Ken transplanting research 9 00:00:12,170 --> 00:00:15,950 assist with Ken transplanting research corp staff here at Dryden he's had a no 10 00:00:15,950 --> 00:00:15,960 corp staff here at Dryden he's had a no 11 00:00:15,960 --> 00:00:18,019 corp staff here at Dryden he's had a no noteworthy career as an aerodynamicist 12 00:00:18,019 --> 00:00:18,029 noteworthy career as an aerodynamicist 13 00:00:18,029 --> 00:00:20,950 noteworthy career as an aerodynamicist for over 40 years with naca and NASA 14 00:00:20,950 --> 00:00:20,960 for over 40 years with naca and NASA 15 00:00:20,960 --> 00:00:23,750 for over 40 years with naca and NASA although he retired from Dryden and NASA 16 00:00:23,750 --> 00:00:23,760 although he retired from Dryden and NASA 17 00:00:23,760 --> 00:00:26,450 although he retired from Dryden and NASA in 1981 he's continued to work here 18 00:00:26,450 --> 00:00:26,460 in 1981 he's continued to work here 19 00:00:26,460 --> 00:00:29,150 in 1981 he's continued to work here part-time for one of our engineering 20 00:00:29,150 --> 00:00:29,160 part-time for one of our engineering 21 00:00:29,160 --> 00:00:30,830 part-time for one of our engineering support service contractors as I 22 00:00:30,830 --> 00:00:30,840 support service contractors as I 23 00:00:30,840 --> 00:00:33,590 support service contractors as I previously mentioned and his career has 24 00:00:33,590 --> 00:00:33,600 previously mentioned and his career has 25 00:00:33,600 --> 00:00:35,360 previously mentioned and his career has been spent in conducting aerodynamic 26 00:00:35,360 --> 00:00:35,370 been spent in conducting aerodynamic 27 00:00:35,370 --> 00:00:37,370 been spent in conducting aerodynamic research as it affects the performance 28 00:00:37,370 --> 00:00:37,380 research as it affects the performance 29 00:00:37,380 --> 00:00:40,850 research as it affects the performance of vehicles aircraft and ground vehicles 30 00:00:40,850 --> 00:00:40,860 of vehicles aircraft and ground vehicles 31 00:00:40,860 --> 00:00:43,400 of vehicles aircraft and ground vehicles and some of you may know that in the 32 00:00:43,400 --> 00:00:43,410 and some of you may know that in the 33 00:00:43,410 --> 00:00:46,729 and some of you may know that in the early 70s are the mid 70s and early 80s 34 00:00:46,729 --> 00:00:46,739 early 70s are the mid 70s and early 80s 35 00:00:46,739 --> 00:00:48,580 early 70s are the mid 70s and early 80s he was involved in some work involving 36 00:00:48,580 --> 00:00:48,590 he was involved in some work involving 37 00:00:48,590 --> 00:00:53,540 he was involved in some work involving trucks and vans in the era of the first 38 00:00:53,540 --> 00:00:53,550 trucks and vans in the era of the first 39 00:00:53,550 --> 00:00:56,990 trucks and vans in the era of the first energy crisis so at Salzman wrap up 40 00:00:56,990 --> 00:00:57,000 energy crisis so at Salzman wrap up 41 00:00:57,000 --> 00:01:26,910 energy crisis so at Salzman wrap up please 42 00:01:26,910 --> 00:01:26,920 43 00:01:26,920 --> 00:01:31,650 okay thank you we're going to need that 44 00:01:31,650 --> 00:01:31,660 okay thank you we're going to need that 45 00:01:31,660 --> 00:01:34,750 okay thank you we're going to need that most of us here are or have been 46 00:01:34,750 --> 00:01:34,760 most of us here are or have been 47 00:01:34,760 --> 00:01:36,730 most of us here are or have been Associates of the dryden flight research 48 00:01:36,730 --> 00:01:36,740 Associates of the dryden flight research 49 00:01:36,740 --> 00:01:39,220 Associates of the dryden flight research facility and I want to underline the 50 00:01:39,220 --> 00:01:39,230 facility and I want to underline the 51 00:01:39,230 --> 00:01:43,060 facility and I want to underline the word Dryden remember that one and today 52 00:01:43,060 --> 00:01:43,070 word Dryden remember that one and today 53 00:01:43,070 --> 00:01:44,680 word Dryden remember that one and today we have honored and dedicated the 54 00:01:44,680 --> 00:01:44,690 we have honored and dedicated the 55 00:01:44,690 --> 00:01:46,440 we have honored and dedicated the supercritical wing research airplane 56 00:01:46,440 --> 00:01:46,450 supercritical wing research airplane 57 00:01:46,450 --> 00:01:49,690 supercritical wing research airplane which is in my mind a significant 58 00:01:49,690 --> 00:01:49,700 which is in my mind a significant 59 00:01:49,700 --> 00:01:52,930 which is in my mind a significant transonic research facility and I want 60 00:01:52,930 --> 00:01:52,940 transonic research facility and I want 61 00:01:52,940 --> 00:01:55,230 transonic research facility and I want to underline the word transonic 62 00:01:55,230 --> 00:01:55,240 to underline the word transonic 63 00:01:55,240 --> 00:01:57,630 to underline the word transonic transonic and Dryden how do they relate 64 00:01:57,630 --> 00:01:57,640 transonic and Dryden how do they relate 65 00:01:57,640 --> 00:02:01,260 transonic and Dryden how do they relate i'm going to try to establish a link and 66 00:02:01,260 --> 00:02:01,270 i'm going to try to establish a link and 67 00:02:01,270 --> 00:02:04,000 i'm going to try to establish a link and i believe we will show that there is a 68 00:02:04,000 --> 00:02:04,010 i believe we will show that there is a 69 00:02:04,010 --> 00:02:07,510 i believe we will show that there is a link between Dryden and transonic first 70 00:02:07,510 --> 00:02:07,520 link between Dryden and transonic first 71 00:02:07,520 --> 00:02:12,970 link between Dryden and transonic first next though I'll indicate for items I 72 00:02:12,970 --> 00:02:12,980 next though I'll indicate for items I 73 00:02:12,980 --> 00:02:15,460 next though I'll indicate for items I want to cover I want to recognize the 74 00:02:15,460 --> 00:02:15,470 want to cover I want to recognize the 75 00:02:15,470 --> 00:02:18,820 want to cover I want to recognize the man Dryden and the place Dryden which is 76 00:02:18,820 --> 00:02:18,830 man Dryden and the place Dryden which is 77 00:02:18,830 --> 00:02:23,740 man Dryden and the place Dryden which is us relative to experimental transonic 78 00:02:23,740 --> 00:02:23,750 us relative to experimental transonic 79 00:02:23,750 --> 00:02:25,960 us relative to experimental transonic aerodynamics I also want to recognize 80 00:02:25,960 --> 00:02:25,970 aerodynamics I also want to recognize 81 00:02:25,970 --> 00:02:28,510 aerodynamics I also want to recognize the inventor of the supercritical wing 82 00:02:28,510 --> 00:02:28,520 the inventor of the supercritical wing 83 00:02:28,520 --> 00:02:30,699 the inventor of the supercritical wing concept and how he dominated 84 00:02:30,699 --> 00:02:30,709 concept and how he dominated 85 00:02:30,709 --> 00:02:32,890 concept and how he dominated experimental transonic aerodynamics for 86 00:02:32,890 --> 00:02:32,900 experimental transonic aerodynamics for 87 00:02:32,900 --> 00:02:37,330 experimental transonic aerodynamics for at least three decades I want to 88 00:02:37,330 --> 00:02:37,340 at least three decades I want to 89 00:02:37,340 --> 00:02:39,310 at least three decades I want to proclaim that transonic research is not 90 00:02:39,310 --> 00:02:39,320 proclaim that transonic research is not 91 00:02:39,320 --> 00:02:43,090 proclaim that transonic research is not just history and the transonic problems 92 00:02:43,090 --> 00:02:43,100 just history and the transonic problems 93 00:02:43,100 --> 00:02:47,350 just history and the transonic problems will surely still confront us and then 94 00:02:47,350 --> 00:02:47,360 will surely still confront us and then 95 00:02:47,360 --> 00:02:49,420 will surely still confront us and then lastly I want to recognize the people 96 00:02:49,420 --> 00:02:49,430 lastly I want to recognize the people 97 00:02:49,430 --> 00:02:51,960 lastly I want to recognize the people who worked on the super critical 98 00:02:51,960 --> 00:02:51,970 who worked on the super critical 99 00:02:51,970 --> 00:02:55,330 who worked on the super critical research airplane here but now that back 100 00:02:55,330 --> 00:02:55,340 research airplane here but now that back 101 00:02:55,340 --> 00:03:01,060 research airplane here but now that back to Dryden and transonic and I got to 102 00:03:01,060 --> 00:03:01,070 to Dryden and transonic and I got to 103 00:03:01,070 --> 00:03:02,620 to Dryden and transonic and I got to learn how to work this which button do I 104 00:03:02,620 --> 00:03:02,630 learn how to work this which button do I 105 00:03:02,630 --> 00:03:13,150 learn how to work this which button do I push to start the slides okay 106 00:03:13,150 --> 00:03:13,160 107 00:03:13,160 --> 00:03:17,090 Dryden and transonic we want to 108 00:03:17,090 --> 00:03:17,100 Dryden and transonic we want to 109 00:03:17,100 --> 00:03:22,309 Dryden and transonic we want to establish now what transonic is in early 110 00:03:22,309 --> 00:03:22,319 establish now what transonic is in early 111 00:03:22,319 --> 00:03:26,090 establish now what transonic is in early nineteen forty seven this is the way 112 00:03:26,090 --> 00:03:26,100 nineteen forty seven this is the way 113 00:03:26,100 --> 00:03:31,520 nineteen forty seven this is the way transonic research was considered and as 114 00:03:31,520 --> 00:03:31,530 transonic research was considered and as 115 00:03:31,530 --> 00:03:33,890 transonic research was considered and as you can see there was quite a gap in 116 00:03:33,890 --> 00:03:33,900 you can see there was quite a gap in 117 00:03:33,900 --> 00:03:36,830 you can see there was quite a gap in theory there were three experimental 118 00:03:36,830 --> 00:03:36,840 theory there were three experimental 119 00:03:36,840 --> 00:03:39,590 theory there were three experimental methods that were going through the 120 00:03:39,590 --> 00:03:39,600 methods that were going through the 121 00:03:39,600 --> 00:03:49,060 methods that were going through the transonic region but those three 122 00:03:49,060 --> 00:03:49,070 transonic region but those three 123 00:03:49,070 --> 00:03:52,670 transonic region but those three experimental methods were qualitative in 124 00:03:52,670 --> 00:03:52,680 experimental methods were qualitative in 125 00:03:52,680 --> 00:03:56,290 experimental methods were qualitative in nature the instrumentation was marginal 126 00:03:56,290 --> 00:03:56,300 nature the instrumentation was marginal 127 00:03:56,300 --> 00:03:58,910 nature the instrumentation was marginal two of them required to telemetry which 128 00:03:58,910 --> 00:03:58,920 two of them required to telemetry which 129 00:03:58,920 --> 00:04:01,120 two of them required to telemetry which hadn't been developed that well yet and 130 00:04:01,120 --> 00:04:01,130 hadn't been developed that well yet and 131 00:04:01,130 --> 00:04:03,430 hadn't been developed that well yet and there you were going to have to 132 00:04:03,430 --> 00:04:03,440 there you were going to have to 133 00:04:03,440 --> 00:04:06,530 there you were going to have to establish better theory either on the 134 00:04:06,530 --> 00:04:06,540 establish better theory either on the 135 00:04:06,540 --> 00:04:09,080 establish better theory either on the basis of wind tunnel work or flight and 136 00:04:09,080 --> 00:04:09,090 basis of wind tunnel work or flight and 137 00:04:09,090 --> 00:04:10,759 basis of wind tunnel work or flight and as you can see the airplane hadn't gone 138 00:04:10,759 --> 00:04:10,769 as you can see the airplane hadn't gone 139 00:04:10,769 --> 00:04:13,160 as you can see the airplane hadn't gone supersonic yet or Trenton even the speed 140 00:04:13,160 --> 00:04:13,170 supersonic yet or Trenton even the speed 141 00:04:13,170 --> 00:04:19,370 supersonic yet or Trenton even the speed of sound and the wind tunnels were close 142 00:04:19,370 --> 00:04:19,380 of sound and the wind tunnels were close 143 00:04:19,380 --> 00:04:25,490 of sound and the wind tunnels were close to getting there the slotted tunnel was 144 00:04:25,490 --> 00:04:25,500 to getting there the slotted tunnel was 145 00:04:25,500 --> 00:04:27,110 to getting there the slotted tunnel was being worked on a matter of fact dr. 146 00:04:27,110 --> 00:04:27,120 being worked on a matter of fact dr. 147 00:04:27,120 --> 00:04:30,920 being worked on a matter of fact dr. Wickham was working on it but the plan 148 00:04:30,920 --> 00:04:30,930 Wickham was working on it but the plan 149 00:04:30,930 --> 00:04:34,040 Wickham was working on it but the plan was to establish a transonic research 150 00:04:34,040 --> 00:04:34,050 was to establish a transonic research 151 00:04:34,050 --> 00:04:35,990 was to establish a transonic research facility for flight as well as 152 00:04:35,990 --> 00:04:36,000 facility for flight as well as 153 00:04:36,000 --> 00:04:37,580 facility for flight as well as completing the slotted throat work in 154 00:04:37,580 --> 00:04:37,590 completing the slotted throat work in 155 00:04:37,590 --> 00:04:44,190 completing the slotted throat work in the tunnel 156 00:04:44,190 --> 00:04:44,200 157 00:04:44,200 --> 00:04:48,610 later in nineteen forty seven the 158 00:04:48,610 --> 00:04:48,620 later in nineteen forty seven the 159 00:04:48,620 --> 00:04:51,880 later in nineteen forty seven the aircraft designed for flight work in the 160 00:04:51,880 --> 00:04:51,890 aircraft designed for flight work in the 161 00:04:51,890 --> 00:04:54,700 aircraft designed for flight work in the transonic region flu Mach 1 in fact it 162 00:04:54,700 --> 00:04:54,710 transonic region flu Mach 1 in fact it 163 00:04:54,710 --> 00:04:58,150 transonic region flu Mach 1 in fact it got tamaqua number one point 06 later 164 00:04:58,150 --> 00:04:58,160 got tamaqua number one point 06 later 165 00:04:58,160 --> 00:05:00,160 got tamaqua number one point 06 later this airplane flew to nearly 166 00:05:00,160 --> 00:05:00,170 this airplane flew to nearly 167 00:05:00,170 --> 00:05:03,310 this airplane flew to nearly one-and-a-half a later pumped up version 168 00:05:03,310 --> 00:05:03,320 one-and-a-half a later pumped up version 169 00:05:03,320 --> 00:05:05,530 one-and-a-half a later pumped up version reached almost two and a half but the 170 00:05:05,530 --> 00:05:05,540 reached almost two and a half but the 171 00:05:05,540 --> 00:05:07,240 reached almost two and a half but the thing we should remember is that this 172 00:05:07,240 --> 00:05:07,250 thing we should remember is that this 173 00:05:07,250 --> 00:05:09,160 thing we should remember is that this was basically a transonic research 174 00:05:09,160 --> 00:05:09,170 was basically a transonic research 175 00:05:09,170 --> 00:05:12,850 was basically a transonic research facility and that's my first link 176 00:05:12,850 --> 00:05:12,860 facility and that's my first link 177 00:05:12,860 --> 00:05:17,520 facility and that's my first link between the place dryden in this case in 178 00:05:17,520 --> 00:05:17,530 between the place dryden in this case in 179 00:05:17,530 --> 00:05:20,740 between the place dryden in this case in transonic research because the place 180 00:05:20,740 --> 00:05:20,750 transonic research because the place 181 00:05:20,750 --> 00:05:28,510 transonic research because the place dryden is us we r is namesake the x1 in 182 00:05:28,510 --> 00:05:28,520 dryden is us we r is namesake the x1 in 183 00:05:28,520 --> 00:05:30,190 dryden is us we r is namesake the x1 in flying through the transonic drag your 184 00:05:30,190 --> 00:05:30,200 flying through the transonic drag your 185 00:05:30,200 --> 00:05:35,920 flying through the transonic drag your eyes provided a valuable source of data 186 00:05:35,920 --> 00:05:35,930 eyes provided a valuable source of data 187 00:05:35,930 --> 00:05:39,100 eyes provided a valuable source of data or a wing pressure profile data at 188 00:05:39,100 --> 00:05:39,110 or a wing pressure profile data at 189 00:05:39,110 --> 00:05:40,930 or a wing pressure profile data at transonic speeds as well as the building 190 00:05:40,930 --> 00:05:40,940 transonic speeds as well as the building 191 00:05:40,940 --> 00:05:43,720 transonic speeds as well as the building control and loads data but I want to 192 00:05:43,720 --> 00:05:43,730 control and loads data but I want to 193 00:05:43,730 --> 00:05:46,180 control and loads data but I want to point out here the pride doesn't show 194 00:05:46,180 --> 00:05:46,190 point out here the pride doesn't show 195 00:05:46,190 --> 00:05:49,780 point out here the pride doesn't show very well but here in flight data from 196 00:05:49,780 --> 00:05:49,790 very well but here in flight data from 197 00:05:49,790 --> 00:05:51,130 very well but here in flight data from the eight percent wing and the ten 198 00:05:51,130 --> 00:05:51,140 the eight percent wing and the ten 199 00:05:51,140 --> 00:05:52,810 the eight percent wing and the ten percent wing where we see drag 200 00:05:52,810 --> 00:05:52,820 percent wing where we see drag 201 00:05:52,820 --> 00:05:55,480 percent wing where we see drag coefficient plotted against Mach number 202 00:05:55,480 --> 00:05:55,490 coefficient plotted against Mach number 203 00:05:55,490 --> 00:05:59,680 coefficient plotted against Mach number and the this transonic drag rise which 204 00:05:59,680 --> 00:05:59,690 and the this transonic drag rise which 205 00:05:59,690 --> 00:06:01,000 and the this transonic drag rise which leveled off right about there and 206 00:06:01,000 --> 00:06:01,010 leveled off right about there and 207 00:06:01,010 --> 00:06:04,500 leveled off right about there and proceeded when it went faster is the 208 00:06:04,500 --> 00:06:04,510 proceeded when it went faster is the 209 00:06:04,510 --> 00:06:08,470 proceeded when it went faster is the drag rise that I want to show a little 210 00:06:08,470 --> 00:06:08,480 drag rise that I want to show a little 211 00:06:08,480 --> 00:06:11,140 drag rise that I want to show a little later in some very very early work done 212 00:06:11,140 --> 00:06:11,150 later in some very very early work done 213 00:06:11,150 --> 00:06:13,890 later in some very very early work done by dr. Dryden and is it also the 214 00:06:13,890 --> 00:06:13,900 by dr. Dryden and is it also the 215 00:06:13,900 --> 00:06:16,630 by dr. Dryden and is it also the increment of drag the doctor Wickham 216 00:06:16,630 --> 00:06:16,640 increment of drag the doctor Wickham 217 00:06:16,640 --> 00:06:18,550 increment of drag the doctor Wickham reduced with the area rule which will 218 00:06:18,550 --> 00:06:18,560 reduced with the area rule which will 219 00:06:18,560 --> 00:06:25,060 reduced with the area rule which will also talk about in a little bit now I 220 00:06:25,060 --> 00:06:25,070 also talk about in a little bit now I 221 00:06:25,070 --> 00:06:28,990 also talk about in a little bit now I want to go a way back in aerodynamic 222 00:06:28,990 --> 00:06:29,000 want to go a way back in aerodynamic 223 00:06:29,000 --> 00:06:32,850 want to go a way back in aerodynamic research history back almost as far as a 224 00:06:32,850 --> 00:06:32,860 research history back almost as far as a 225 00:06:32,860 --> 00:06:36,280 research history back almost as far as a doctor mature went earlier this morning 226 00:06:36,280 --> 00:06:36,290 doctor mature went earlier this morning 227 00:06:36,290 --> 00:06:39,400 doctor mature went earlier this morning not quite that far back perhaps in this 228 00:06:39,400 --> 00:06:39,410 not quite that far back perhaps in this 229 00:06:39,410 --> 00:06:42,040 not quite that far back perhaps in this case let's see let's pick out something 230 00:06:42,040 --> 00:06:42,050 case let's see let's pick out something 231 00:06:42,050 --> 00:06:44,830 case let's see let's pick out something like will say the invention of the steam 232 00:06:44,830 --> 00:06:44,840 like will say the invention of the steam 233 00:06:44,840 --> 00:06:47,830 like will say the invention of the steam engine would be one end of the time 234 00:06:47,830 --> 00:06:47,840 engine would be one end of the time 235 00:06:47,840 --> 00:06:49,360 engine would be one end of the time scale we're talking about and the other 236 00:06:49,360 --> 00:06:49,370 scale we're talking about and the other 237 00:06:49,370 --> 00:06:51,969 scale we're talking about and the other end might be as far back as milk 238 00:06:51,969 --> 00:06:51,979 end might be as far back as milk 239 00:06:51,979 --> 00:06:57,200 end might be as far back as milk Thompson's birthday 240 00:06:57,200 --> 00:06:57,210 241 00:06:57,210 --> 00:07:01,860 at that time a young PhD named Hugh 242 00:07:01,860 --> 00:07:01,870 at that time a young PhD named Hugh 243 00:07:01,870 --> 00:07:05,490 at that time a young PhD named Hugh Dryden and two co-workers obtained the 244 00:07:05,490 --> 00:07:05,500 Dryden and two co-workers obtained the 245 00:07:05,500 --> 00:07:08,970 Dryden and two co-workers obtained the first data from a ground facility that 246 00:07:08,970 --> 00:07:08,980 first data from a ground facility that 247 00:07:08,980 --> 00:07:10,590 first data from a ground facility that showed the beginnings of the transonic 248 00:07:10,590 --> 00:07:10,600 showed the beginnings of the transonic 249 00:07:10,600 --> 00:07:17,120 showed the beginnings of the transonic drag rise here we have drag coefficient 250 00:07:17,120 --> 00:07:17,130 drag rise here we have drag coefficient 251 00:07:17,130 --> 00:07:19,800 drag rise here we have drag coefficient plotted against in this case they called 252 00:07:19,800 --> 00:07:19,810 plotted against in this case they called 253 00:07:19,810 --> 00:07:22,020 plotted against in this case they called it V over C I wish that showed better 254 00:07:22,020 --> 00:07:22,030 it V over C I wish that showed better 255 00:07:22,030 --> 00:07:24,210 it V over C I wish that showed better for you that are back quite a ways take 256 00:07:24,210 --> 00:07:24,220 for you that are back quite a ways take 257 00:07:24,220 --> 00:07:29,160 for you that are back quite a ways take my word for it this is V over C test 258 00:07:29,160 --> 00:07:29,170 my word for it this is V over C test 259 00:07:29,170 --> 00:07:30,810 my word for it this is V over C test velocity divided by the speed of sound 260 00:07:30,810 --> 00:07:30,820 velocity divided by the speed of sound 261 00:07:30,820 --> 00:07:33,330 velocity divided by the speed of sound plotted against drag coefficient for two 262 00:07:33,330 --> 00:07:33,340 plotted against drag coefficient for two 263 00:07:33,340 --> 00:07:35,340 plotted against drag coefficient for two airfoils of different thicknesses and 264 00:07:35,340 --> 00:07:35,350 airfoils of different thicknesses and 265 00:07:35,350 --> 00:07:38,250 airfoils of different thicknesses and what they were doing at that time was 266 00:07:38,250 --> 00:07:38,260 what they were doing at that time was 267 00:07:38,260 --> 00:07:42,860 what they were doing at that time was evaluating airfoil drag characteristics 268 00:07:42,860 --> 00:07:42,870 evaluating airfoil drag characteristics 269 00:07:42,870 --> 00:07:47,760 evaluating airfoil drag characteristics for propeller research airplanes at this 270 00:07:47,760 --> 00:07:47,770 for propeller research airplanes at this 271 00:07:47,770 --> 00:07:49,590 for propeller research airplanes at this time are flying about 100 miles an hour 272 00:07:49,590 --> 00:07:49,600 time are flying about 100 miles an hour 273 00:07:49,600 --> 00:07:51,990 time are flying about 100 miles an hour most of them the absolute speed record 274 00:07:51,990 --> 00:07:52,000 most of them the absolute speed record 275 00:07:52,000 --> 00:08:01,140 most of them the absolute speed record was below 280 to get these data they had 276 00:08:01,140 --> 00:08:01,150 was below 280 to get these data they had 277 00:08:01,150 --> 00:08:03,390 was below 280 to get these data they had to travel to Lynn Massachusetts and 278 00:08:03,390 --> 00:08:03,400 to travel to Lynn Massachusetts and 279 00:08:03,400 --> 00:08:05,700 to travel to Lynn Massachusetts and borrow a compressor that was owned by 280 00:08:05,700 --> 00:08:05,710 borrow a compressor that was owned by 281 00:08:05,710 --> 00:08:08,400 borrow a compressor that was owned by General Electric Company this compressor 282 00:08:08,400 --> 00:08:08,410 General Electric Company this compressor 283 00:08:08,410 --> 00:08:12,330 General Electric Company this compressor was a 5,000 horsepower compressor that 284 00:08:12,330 --> 00:08:12,340 was a 5,000 horsepower compressor that 285 00:08:12,340 --> 00:08:14,910 was a 5,000 horsepower compressor that they used to pressurize a large tank 286 00:08:14,910 --> 00:08:14,920 they used to pressurize a large tank 287 00:08:14,920 --> 00:08:16,980 they used to pressurize a large tank that was about 30 feet long and 30 288 00:08:16,980 --> 00:08:16,990 that was about 30 feet long and 30 289 00:08:16,990 --> 00:08:19,290 that was about 30 feet long and 30 inches in diameter and at one end of 290 00:08:19,290 --> 00:08:19,300 inches in diameter and at one end of 291 00:08:19,300 --> 00:08:21,210 inches in diameter and at one end of this they had an opening of 12 inches 292 00:08:21,210 --> 00:08:21,220 this they had an opening of 12 inches 293 00:08:21,220 --> 00:08:23,610 this they had an opening of 12 inches below which they placed their air for 294 00:08:23,610 --> 00:08:23,620 below which they placed their air for 295 00:08:23,620 --> 00:08:27,210 below which they placed their air for models this in other words this was the 296 00:08:27,210 --> 00:08:27,220 models this in other words this was the 297 00:08:27,220 --> 00:08:30,980 models this in other words this was the free jet it was very noisy and 298 00:08:30,980 --> 00:08:30,990 free jet it was very noisy and 299 00:08:30,990 --> 00:08:33,060 free jet it was very noisy and incidentally they had to use this 300 00:08:33,060 --> 00:08:33,070 incidentally they had to use this 301 00:08:33,070 --> 00:08:37,170 incidentally they had to use this borrowed compressor system just when 302 00:08:37,170 --> 00:08:37,180 borrowed compressor system just when 303 00:08:37,180 --> 00:08:39,450 borrowed compressor system just when General Electric let them use it so they 304 00:08:39,450 --> 00:08:39,460 General Electric let them use it so they 305 00:08:39,460 --> 00:08:41,790 General Electric let them use it so they ended up doing their first tests on 306 00:08:41,790 --> 00:08:41,800 ended up doing their first tests on 307 00:08:41,800 --> 00:08:48,150 ended up doing their first tests on Christmas Day in 1923 after the tests it 308 00:08:48,150 --> 00:08:48,160 Christmas Day in 1923 after the tests it 309 00:08:48,160 --> 00:08:50,970 Christmas Day in 1923 after the tests it is written here this is by Dryden 310 00:08:50,970 --> 00:08:50,980 is written here this is by Dryden 311 00:08:50,980 --> 00:08:53,490 is written here this is by Dryden himself he says we walked down the 312 00:08:53,490 --> 00:08:53,500 himself he says we walked down the 313 00:08:53,500 --> 00:08:55,290 himself he says we walked down the street in Lynn after the tests 314 00:08:55,290 --> 00:08:55,300 street in Lynn after the tests 315 00:08:55,300 --> 00:08:58,410 street in Lynn after the tests discussing the jet and noticed that 316 00:08:58,410 --> 00:08:58,420 discussing the jet and noticed that 317 00:08:58,420 --> 00:09:01,050 discussing the jet and noticed that passers-by were staring at us strangely 318 00:09:01,050 --> 00:09:01,060 passers-by were staring at us strangely 319 00:09:01,060 --> 00:09:04,680 passers-by were staring at us strangely and they were shaking their heads it was 320 00:09:04,680 --> 00:09:04,690 and they were shaking their heads it was 321 00:09:04,690 --> 00:09:06,510 and they were shaking their heads it was some time before we discovered that they 322 00:09:06,510 --> 00:09:06,520 some time before we discovered that they 323 00:09:06,520 --> 00:09:07,560 some time before we discovered that they we had been 324 00:09:07,560 --> 00:09:07,570 we had been 325 00:09:07,570 --> 00:09:10,110 we had been shouting at each other at the top of our 326 00:09:10,110 --> 00:09:10,120 shouting at each other at the top of our 327 00:09:10,120 --> 00:09:12,510 shouting at each other at the top of our voices we were both temporarily deaf as 328 00:09:12,510 --> 00:09:12,520 voices we were both temporarily deaf as 329 00:09:12,520 --> 00:09:14,880 voices we were both temporarily deaf as a result of working with our heads only 330 00:09:14,880 --> 00:09:14,890 a result of working with our heads only 331 00:09:14,890 --> 00:09:18,560 a result of working with our heads only a few inches from the large jet now the 332 00:09:18,560 --> 00:09:18,570 a few inches from the large jet now the 333 00:09:18,570 --> 00:09:20,970 a few inches from the large jet now the primarily thing I wanted to show here 334 00:09:20,970 --> 00:09:20,980 primarily thing I wanted to show here 335 00:09:20,980 --> 00:09:25,250 primarily thing I wanted to show here was the beginnings of the drag rise and 336 00:09:25,250 --> 00:09:25,260 was the beginnings of the drag rise and 337 00:09:25,260 --> 00:09:29,300 was the beginnings of the drag rise and this was done beginning Christmas Day 338 00:09:29,300 --> 00:09:29,310 this was done beginning Christmas Day 339 00:09:29,310 --> 00:09:31,590 this was done beginning Christmas Day 1923 they showed the beginning of the 340 00:09:31,590 --> 00:09:31,600 1923 they showed the beginning of the 341 00:09:31,600 --> 00:09:34,050 1923 they showed the beginning of the drag rise for these various air these 342 00:09:34,050 --> 00:09:34,060 drag rise for these various air these 343 00:09:34,060 --> 00:09:37,070 drag rise for these various air these two airfoils at various angles of attack 344 00:09:37,070 --> 00:09:37,080 two airfoils at various angles of attack 345 00:09:37,080 --> 00:09:39,300 two airfoils at various angles of attack incidentally they didn't talk about Mach 346 00:09:39,300 --> 00:09:39,310 incidentally they didn't talk about Mach 347 00:09:39,310 --> 00:09:42,780 incidentally they didn't talk about Mach number they talked about velocity ratio 348 00:09:42,780 --> 00:09:42,790 number they talked about velocity ratio 349 00:09:42,790 --> 00:09:45,900 number they talked about velocity ratio and they didn't talk about transonic 350 00:09:45,900 --> 00:09:45,910 and they didn't talk about transonic 351 00:09:45,910 --> 00:09:48,630 and they didn't talk about transonic because there was no such word yet they 352 00:09:48,630 --> 00:09:48,640 because there was no such word yet they 353 00:09:48,640 --> 00:09:52,880 because there was no such word yet they talked about a different flow regime and 354 00:09:52,880 --> 00:09:52,890 talked about a different flow regime and 355 00:09:52,890 --> 00:09:55,170 talked about a different flow regime and once in a while they would say in their 356 00:09:55,170 --> 00:09:55,180 once in a while they would say in their 357 00:09:55,180 --> 00:09:58,220 once in a while they would say in their literature there seems to be a critical 358 00:09:58,220 --> 00:09:58,230 literature there seems to be a critical 359 00:09:58,230 --> 00:10:06,210 literature there seems to be a critical condition or a critical velocity it was 360 00:10:06,210 --> 00:10:06,220 condition or a critical velocity it was 361 00:10:06,220 --> 00:10:11,340 condition or a critical velocity it was two years later in 1926 I think that's 362 00:10:11,340 --> 00:10:11,350 two years later in 1926 I think that's 363 00:10:11,350 --> 00:10:14,370 two years later in 1926 I think that's when Milt was born that Briggs and 364 00:10:14,370 --> 00:10:14,380 when Milt was born that Briggs and 365 00:10:14,380 --> 00:10:16,710 when Milt was born that Briggs and Dryden his coworker in case I just 366 00:10:16,710 --> 00:10:16,720 Dryden his coworker in case I just 367 00:10:16,720 --> 00:10:18,270 Dryden his coworker in case I just showed you and Dryden devised an 368 00:10:18,270 --> 00:10:18,280 showed you and Dryden devised an 369 00:10:18,280 --> 00:10:21,480 showed you and Dryden devised an experiment to obtain pressure data in a 370 00:10:21,480 --> 00:10:21,490 experiment to obtain pressure data in a 371 00:10:21,490 --> 00:10:23,580 experiment to obtain pressure data in a pressure distribution form similar to 372 00:10:23,580 --> 00:10:23,590 pressure distribution form similar to 373 00:10:23,590 --> 00:10:25,710 pressure distribution form similar to what dr. Whitcomb use it and showed to 374 00:10:25,710 --> 00:10:25,720 what dr. Whitcomb use it and showed to 375 00:10:25,720 --> 00:10:28,920 what dr. Whitcomb use it and showed to us on the same airfoil shapes that they 376 00:10:28,920 --> 00:10:28,930 us on the same airfoil shapes that they 377 00:10:28,930 --> 00:10:32,370 us on the same airfoil shapes that they had tested on Christmas Day in 1923 they 378 00:10:32,370 --> 00:10:32,380 had tested on Christmas Day in 1923 they 379 00:10:32,380 --> 00:10:35,010 had tested on Christmas Day in 1923 they wanted to go supersonic this time so 380 00:10:35,010 --> 00:10:35,020 wanted to go supersonic this time so 381 00:10:35,020 --> 00:10:38,040 wanted to go supersonic this time so they devised the first convergent 382 00:10:38,040 --> 00:10:38,050 they devised the first convergent 383 00:10:38,050 --> 00:10:40,740 they devised the first convergent divergent test nozzle ever tested in the 384 00:10:40,740 --> 00:10:40,750 divergent test nozzle ever tested in the 385 00:10:40,750 --> 00:10:43,220 divergent test nozzle ever tested in the united states that actually provided 386 00:10:43,220 --> 00:10:43,230 united states that actually provided 387 00:10:43,230 --> 00:10:48,390 united states that actually provided quantitative or maybe dr. Dryden would 388 00:10:48,390 --> 00:10:48,400 quantitative or maybe dr. Dryden would 389 00:10:48,400 --> 00:10:50,760 quantitative or maybe dr. Dryden would say qualitative but I've seen the plots 390 00:10:50,760 --> 00:10:50,770 say qualitative but I've seen the plots 391 00:10:50,770 --> 00:10:52,920 say qualitative but I've seen the plots and it looks quantitative aerodynamic 392 00:10:52,920 --> 00:10:52,930 and it looks quantitative aerodynamic 393 00:10:52,930 --> 00:10:59,720 and it looks quantitative aerodynamic data this was a two-inch diameter nozzle 394 00:10:59,720 --> 00:10:59,730 data this was a two-inch diameter nozzle 395 00:10:59,730 --> 00:11:03,270 data this was a two-inch diameter nozzle and it was another open jet the cord of 396 00:11:03,270 --> 00:11:03,280 and it was another open jet the cord of 397 00:11:03,280 --> 00:11:07,950 and it was another open jet the cord of their air foils was one inch they tested 398 00:11:07,950 --> 00:11:07,960 their air foils was one inch they tested 399 00:11:07,960 --> 00:11:14,090 their air foils was one inch they tested six airfoils that way 400 00:11:14,090 --> 00:11:14,100 401 00:11:14,100 --> 00:11:17,910 it was a at this time incidentally as I 402 00:11:17,910 --> 00:11:17,920 it was a at this time incidentally as I 403 00:11:17,920 --> 00:11:20,400 it was a at this time incidentally as I indicated before there was no such word 404 00:11:20,400 --> 00:11:20,410 indicated before there was no such word 405 00:11:20,410 --> 00:11:24,269 indicated before there was no such word as trance and and dryden realized one 406 00:11:24,269 --> 00:11:24,279 as trance and and dryden realized one 407 00:11:24,279 --> 00:11:26,160 as trance and and dryden realized one was needed so he invented the word and 408 00:11:26,160 --> 00:11:26,170 was needed so he invented the word and 409 00:11:26,170 --> 00:11:31,309 was needed so he invented the word and it turned out to be transonic however 410 00:11:31,309 --> 00:11:31,319 it turned out to be transonic however 411 00:11:31,319 --> 00:11:34,620 it turned out to be transonic however I'm going to walk away from the mic here 412 00:11:34,620 --> 00:11:34,630 I'm going to walk away from the mic here 413 00:11:34,630 --> 00:11:36,329 I'm going to walk away from the mic here now so I can point it out a little 414 00:11:36,329 --> 00:11:36,339 now so I can point it out a little 415 00:11:36,339 --> 00:11:39,600 now so I can point it out a little better as you can see it those of you 416 00:11:39,600 --> 00:11:39,610 better as you can see it those of you 417 00:11:39,610 --> 00:11:42,930 better as you can see it those of you that are close enough it wasn't spelled 418 00:11:42,930 --> 00:11:42,940 that are close enough it wasn't spelled 419 00:11:42,940 --> 00:11:45,590 that are close enough it wasn't spelled the way we spell it today it has 2 s's 420 00:11:45,590 --> 00:11:45,600 the way we spell it today it has 2 s's 421 00:11:45,600 --> 00:11:49,110 the way we spell it today it has 2 s's they're here it's used again here it's 422 00:11:49,110 --> 00:11:49,120 they're here it's used again here it's 423 00:11:49,120 --> 00:11:52,230 they're here it's used again here it's used again these are excerpts from John 424 00:11:52,230 --> 00:11:52,240 used again these are excerpts from John 425 00:11:52,240 --> 00:11:56,240 used again these are excerpts from John stacks eights Wright brothers lecture of 426 00:11:56,240 --> 00:11:56,250 stacks eights Wright brothers lecture of 427 00:11:56,250 --> 00:12:01,949 stacks eights Wright brothers lecture of December 1944 these two instances of 428 00:12:01,949 --> 00:12:01,959 December 1944 these two instances of 429 00:12:01,959 --> 00:12:04,439 December 1944 these two instances of transonic spelled with 2 s's is from the 430 00:12:04,439 --> 00:12:04,449 transonic spelled with 2 s's is from the 431 00:12:04,449 --> 00:12:07,110 transonic spelled with 2 s's is from the body of John stacks lecture and then 432 00:12:07,110 --> 00:12:07,120 body of John stacks lecture and then 433 00:12:07,120 --> 00:12:10,249 body of John stacks lecture and then this case here is where dr. Dryden used 434 00:12:10,249 --> 00:12:10,259 this case here is where dr. Dryden used 435 00:12:10,259 --> 00:12:13,379 this case here is where dr. Dryden used transonic spell that way in his 436 00:12:13,379 --> 00:12:13,389 transonic spell that way in his 437 00:12:13,389 --> 00:12:18,870 transonic spell that way in his commentary on John stacks lecture dr. 438 00:12:18,870 --> 00:12:18,880 commentary on John stacks lecture dr. 439 00:12:18,880 --> 00:12:21,660 commentary on John stacks lecture dr. dragon was very logical his reasoning 440 00:12:21,660 --> 00:12:21,670 dragon was very logical his reasoning 441 00:12:21,670 --> 00:12:25,199 dragon was very logical his reasoning was like this transcontinental you take 442 00:12:25,199 --> 00:12:25,209 was like this transcontinental you take 443 00:12:25,209 --> 00:12:26,999 was like this transcontinental you take the word trance you take the word 444 00:12:26,999 --> 00:12:27,009 the word trance you take the word 445 00:12:27,009 --> 00:12:29,990 the word trance you take the word continental you push him together 446 00:12:29,990 --> 00:12:30,000 continental you push him together 447 00:12:30,000 --> 00:12:36,569 continental you push him together transoceanic why not transonic three 448 00:12:36,569 --> 00:12:36,579 transoceanic why not transonic three 449 00:12:36,579 --> 00:12:42,179 transoceanic why not transonic three years later dr. Dryden had left the 450 00:12:42,179 --> 00:12:42,189 years later dr. Dryden had left the 451 00:12:42,189 --> 00:12:44,400 years later dr. Dryden had left the bureau standards was in the process of 452 00:12:44,400 --> 00:12:44,410 bureau standards was in the process of 453 00:12:44,410 --> 00:12:46,350 bureau standards was in the process of leaving the Bureau standards and he was 454 00:12:46,350 --> 00:12:46,360 leaving the Bureau standards and he was 455 00:12:46,360 --> 00:12:48,929 leaving the Bureau standards and he was on a train ride with dr. pretend 456 00:12:48,929 --> 00:12:48,939 on a train ride with dr. pretend 457 00:12:48,939 --> 00:12:51,689 on a train ride with dr. pretend professor theodore von karman between 458 00:12:51,689 --> 00:12:51,699 professor theodore von karman between 459 00:12:51,699 --> 00:12:54,990 professor theodore von karman between Aberdeen Maryland and Washington DC and 460 00:12:54,990 --> 00:12:55,000 Aberdeen Maryland and Washington DC and 461 00:12:55,000 --> 00:12:57,900 Aberdeen Maryland and Washington DC and they were talking about the need for a 462 00:12:57,900 --> 00:12:57,910 they were talking about the need for a 463 00:12:57,910 --> 00:13:02,009 they were talking about the need for a word to describe this region now the 464 00:13:02,009 --> 00:13:02,019 word to describe this region now the 465 00:13:02,019 --> 00:13:07,740 word to describe this region now the case that I just showed you was in 1944 466 00:13:07,740 --> 00:13:07,750 case that I just showed you was in 1944 467 00:13:07,750 --> 00:13:11,220 case that I just showed you was in 1944 this is three years later and Dryden 468 00:13:11,220 --> 00:13:11,230 this is three years later and Dryden 469 00:13:11,230 --> 00:13:13,199 this is three years later and Dryden said he had a word for it transonic 470 00:13:13,199 --> 00:13:13,209 said he had a word for it transonic 471 00:13:13,209 --> 00:13:17,340 said he had a word for it transonic spelled with 2 s's von karman liked the 472 00:13:17,340 --> 00:13:17,350 spelled with 2 s's von karman liked the 473 00:13:17,350 --> 00:13:18,960 spelled with 2 s's von karman liked the word but he didn't like the spelling and 474 00:13:18,960 --> 00:13:18,970 word but he didn't like the spelling and 475 00:13:18,970 --> 00:13:22,650 word but he didn't like the spelling and as you can see that's the way von karman 476 00:13:22,650 --> 00:13:22,660 as you can see that's the way von karman 477 00:13:22,660 --> 00:13:24,079 as you can see that's the way von karman wanted to spell it 478 00:13:24,079 --> 00:13:24,089 wanted to spell it 479 00:13:24,089 --> 00:13:26,629 wanted to spell it in spite of Dryden's reasonable thinking 480 00:13:26,629 --> 00:13:26,639 in spite of Dryden's reasonable thinking 481 00:13:26,639 --> 00:13:29,829 in spite of Dryden's reasonable thinking we all know which spelling has prevailed 482 00:13:29,829 --> 00:13:29,839 we all know which spelling has prevailed 483 00:13:29,839 --> 00:13:34,999 we all know which spelling has prevailed one carmen explains it this way he says 484 00:13:34,999 --> 00:13:35,009 one carmen explains it this way he says 485 00:13:35,009 --> 00:13:37,819 one carmen explains it this way he says Dryden was a logical and wanted two S's 486 00:13:37,819 --> 00:13:37,829 Dryden was a logical and wanted two S's 487 00:13:37,829 --> 00:13:42,079 Dryden was a logical and wanted two S's I thought it wasn't always necessary to 488 00:13:42,079 --> 00:13:42,089 I thought it wasn't always necessary to 489 00:13:42,089 --> 00:13:44,660 I thought it wasn't always necessary to be logical in aeronautics so I wrote it 490 00:13:44,660 --> 00:13:44,670 be logical in aeronautics so I wrote it 491 00:13:44,670 --> 00:13:47,989 be logical in aeronautics so I wrote it with one ass very simple in the course 492 00:13:47,989 --> 00:13:47,999 with one ass very simple in the course 493 00:13:47,999 --> 00:13:53,030 with one ass very simple in the course of their discussion or argument Dryden 494 00:13:53,030 --> 00:13:53,040 of their discussion or argument Dryden 495 00:13:53,040 --> 00:13:56,480 of their discussion or argument Dryden took a little convincing so finally dr. 496 00:13:56,480 --> 00:13:56,490 took a little convincing so finally dr. 497 00:13:56,490 --> 00:13:59,889 took a little convincing so finally dr. von karman quoted the German poet Goethe 498 00:13:59,889 --> 00:13:59,899 von karman quoted the German poet Goethe 499 00:13:59,899 --> 00:14:03,429 von karman quoted the German poet Goethe or at least he paraphrased him and said 500 00:14:03,429 --> 00:14:03,439 or at least he paraphrased him and said 501 00:14:03,439 --> 00:14:07,910 or at least he paraphrased him and said Getty says some logic is desirable but 502 00:14:07,910 --> 00:14:07,920 Getty says some logic is desirable but 503 00:14:07,920 --> 00:14:12,949 Getty says some logic is desirable but to always be logical is horrible so I 504 00:14:12,949 --> 00:14:12,959 to always be logical is horrible so I 505 00:14:12,959 --> 00:14:16,579 to always be logical is horrible so I guess Getty had to contend with nerds 506 00:14:16,579 --> 00:14:16,589 guess Getty had to contend with nerds 507 00:14:16,589 --> 00:14:22,879 guess Getty had to contend with nerds back in those days so this gives us a 508 00:14:22,879 --> 00:14:22,889 back in those days so this gives us a 509 00:14:22,889 --> 00:14:24,860 back in those days so this gives us a glimpse of the connection between Dryden 510 00:14:24,860 --> 00:14:24,870 glimpse of the connection between Dryden 511 00:14:24,870 --> 00:14:27,259 glimpse of the connection between Dryden a place and transonic we tested the 512 00:14:27,259 --> 00:14:27,269 a place and transonic we tested the 513 00:14:27,269 --> 00:14:30,350 a place and transonic we tested the first transonic airplane here and the 514 00:14:30,350 --> 00:14:30,360 first transonic airplane here and the 515 00:14:30,360 --> 00:14:32,689 first transonic airplane here and the place is now named Dryden we are the 516 00:14:32,689 --> 00:14:32,699 place is now named Dryden we are the 517 00:14:32,699 --> 00:14:34,489 place is now named Dryden we are the namesake and of course that was what 518 00:14:34,489 --> 00:14:34,499 namesake and of course that was what 519 00:14:34,499 --> 00:14:37,400 namesake and of course that was what Williams test group called narok flight 520 00:14:37,400 --> 00:14:37,410 Williams test group called narok flight 521 00:14:37,410 --> 00:14:41,059 Williams test group called narok flight test unit we've also established like a 522 00:14:41,059 --> 00:14:41,069 test unit we've also established like a 523 00:14:41,069 --> 00:14:42,679 test unit we've also established like a link between Dryden the man and 524 00:14:42,679 --> 00:14:42,689 link between Dryden the man and 525 00:14:42,689 --> 00:14:44,749 link between Dryden the man and transonic he generated the first 526 00:14:44,749 --> 00:14:44,759 transonic he generated the first 527 00:14:44,759 --> 00:14:46,910 transonic he generated the first experimental airfoil data demonstrating 528 00:14:46,910 --> 00:14:46,920 experimental airfoil data demonstrating 529 00:14:46,920 --> 00:14:50,869 experimental airfoil data demonstrating the critical drag rise he invented the 530 00:14:50,869 --> 00:14:50,879 the critical drag rise he invented the 531 00:14:50,879 --> 00:14:53,989 the critical drag rise he invented the word transonic and he with Briggs 532 00:14:53,989 --> 00:14:53,999 word transonic and he with Briggs 533 00:14:53,999 --> 00:14:57,259 word transonic and he with Briggs designed the first converging diverging 534 00:14:57,259 --> 00:14:57,269 designed the first converging diverging 535 00:14:57,269 --> 00:15:00,939 designed the first converging diverging test model nozzle that provided real 536 00:15:00,939 --> 00:15:00,949 test model nozzle that provided real 537 00:15:00,949 --> 00:15:04,040 test model nozzle that provided real aerodynamic data in this country it's 538 00:15:04,040 --> 00:15:04,050 aerodynamic data in this country it's 539 00:15:04,050 --> 00:15:06,169 aerodynamic data in this country it's interesting to note that their data with 540 00:15:06,169 --> 00:15:06,179 interesting to note that their data with 541 00:15:06,179 --> 00:15:09,679 interesting to note that their data with this converging diverging nozzle reached 542 00:15:09,679 --> 00:15:09,689 this converging diverging nozzle reached 543 00:15:09,689 --> 00:15:12,319 this converging diverging nozzle reached a peak Mount number one point 08 the 544 00:15:12,319 --> 00:15:12,329 a peak Mount number one point 08 the 545 00:15:12,329 --> 00:15:17,509 a peak Mount number one point 08 the first x1 air plane flight that exceeded 546 00:15:17,509 --> 00:15:17,519 first x1 air plane flight that exceeded 547 00:15:17,519 --> 00:15:19,129 first x1 air plane flight that exceeded the speed of sound went to one point 06 548 00:15:19,129 --> 00:15:19,139 the speed of sound went to one point 06 549 00:15:19,139 --> 00:15:21,590 the speed of sound went to one point 06 only a two hundreds of a Mach number 550 00:15:21,590 --> 00:15:21,600 only a two hundreds of a Mach number 551 00:15:21,600 --> 00:15:28,090 only a two hundreds of a Mach number difference between the two now 552 00:15:28,090 --> 00:15:28,100 553 00:15:28,100 --> 00:15:30,910 what about the man Wickham and transonic 554 00:15:30,910 --> 00:15:30,920 what about the man Wickham and transonic 555 00:15:30,920 --> 00:15:33,910 what about the man Wickham and transonic research well he dominated transonic 556 00:15:33,910 --> 00:15:33,920 research well he dominated transonic 557 00:15:33,920 --> 00:15:36,069 research well he dominated transonic aerodynamic research for at least three 558 00:15:36,069 --> 00:15:36,079 aerodynamic research for at least three 559 00:15:36,079 --> 00:15:39,970 aerodynamic research for at least three decades perhaps I should be corrected 560 00:15:39,970 --> 00:15:39,980 decades perhaps I should be corrected 561 00:15:39,980 --> 00:15:42,220 decades perhaps I should be corrected and it can be established that it was 562 00:15:42,220 --> 00:15:42,230 and it can be established that it was 563 00:15:42,230 --> 00:15:47,230 and it can be established that it was significantly longer than that he first 564 00:15:47,230 --> 00:15:47,240 significantly longer than that he first 565 00:15:47,240 --> 00:15:50,439 significantly longer than that he first the part that I know of he was an 566 00:15:50,439 --> 00:15:50,449 the part that I know of he was an 567 00:15:50,449 --> 00:15:51,610 the part that I know of he was an important part of the team that 568 00:15:51,610 --> 00:15:51,620 important part of the team that 569 00:15:51,620 --> 00:15:55,920 important part of the team that developed the slotted throat wind tunnel 570 00:15:55,920 --> 00:15:55,930 571 00:15:55,930 --> 00:15:59,439 he invented and conceived of the area 572 00:15:59,439 --> 00:15:59,449 he invented and conceived of the area 573 00:15:59,449 --> 00:16:03,970 he invented and conceived of the area rule here we see the YF one or two on 574 00:16:03,970 --> 00:16:03,980 rule here we see the YF one or two on 575 00:16:03,980 --> 00:16:06,999 rule here we see the YF one or two on the left and a 102 a on the right which 576 00:16:06,999 --> 00:16:07,009 the left and a 102 a on the right which 577 00:16:07,009 --> 00:16:10,199 the left and a 102 a on the right which is the area ruled one in this case the 578 00:16:10,199 --> 00:16:10,209 is the area ruled one in this case the 579 00:16:10,209 --> 00:16:13,900 is the area ruled one in this case the wave drag increment was reduced about 580 00:16:13,900 --> 00:16:13,910 wave drag increment was reduced about 581 00:16:13,910 --> 00:16:15,699 wave drag increment was reduced about twenty-five percent by the area ruling 582 00:16:15,699 --> 00:16:15,709 twenty-five percent by the area ruling 583 00:16:15,709 --> 00:16:20,590 twenty-five percent by the area ruling process here in addition of course he 584 00:16:20,590 --> 00:16:20,600 process here in addition of course he 585 00:16:20,600 --> 00:16:21,999 process here in addition of course he invented and conceived of the 586 00:16:21,999 --> 00:16:22,009 invented and conceived of the 587 00:16:22,009 --> 00:16:25,059 invented and conceived of the supercritical wing that we're talking 588 00:16:25,059 --> 00:16:25,069 supercritical wing that we're talking 589 00:16:25,069 --> 00:16:29,259 supercritical wing that we're talking about today and in this case the drag 590 00:16:29,259 --> 00:16:29,269 about today and in this case the drag 591 00:16:29,269 --> 00:16:31,120 about today and in this case the drag rides Mach number of this configuration 592 00:16:31,120 --> 00:16:31,130 rides Mach number of this configuration 593 00:16:31,130 --> 00:16:33,819 rides Mach number of this configuration not the wing now but the configuration 594 00:16:33,819 --> 00:16:33,829 not the wing now but the configuration 595 00:16:33,829 --> 00:16:36,639 not the wing now but the configuration was pushed up to about point nine seven 596 00:16:36,639 --> 00:16:36,649 was pushed up to about point nine seven 597 00:16:36,649 --> 00:16:39,819 was pushed up to about point nine seven and this is a twerking lift coefficients 598 00:16:39,819 --> 00:16:39,829 and this is a twerking lift coefficients 599 00:16:39,829 --> 00:16:42,460 and this is a twerking lift coefficients this is a d'cruz lift coefficient and as 600 00:16:42,460 --> 00:16:42,470 this is a d'cruz lift coefficient and as 601 00:16:42,470 --> 00:16:45,429 this is a d'cruz lift coefficient and as he indicated earlier the drag rise Mach 602 00:16:45,429 --> 00:16:45,439 he indicated earlier the drag rise Mach 603 00:16:45,439 --> 00:16:49,360 he indicated earlier the drag rise Mach number of the wing itself was just 604 00:16:49,360 --> 00:16:49,370 number of the wing itself was just 605 00:16:49,370 --> 00:16:53,980 number of the wing itself was just nudging one in addition he invented and 606 00:16:53,980 --> 00:16:53,990 nudging one in addition he invented and 607 00:16:53,990 --> 00:16:55,499 nudging one in addition he invented and conceived of the winglets project 608 00:16:55,499 --> 00:16:55,509 conceived of the winglets project 609 00:16:55,509 --> 00:17:00,670 conceived of the winglets project winglets concept in this case the fuel 610 00:17:00,670 --> 00:17:00,680 winglets concept in this case the fuel 611 00:17:00,680 --> 00:17:03,730 winglets concept in this case the fuel savings were about six percent in later 612 00:17:03,730 --> 00:17:03,740 savings were about six percent in later 613 00:17:03,740 --> 00:17:06,220 savings were about six percent in later versions where the wing loading was 614 00:17:06,220 --> 00:17:06,230 versions where the wing loading was 615 00:17:06,230 --> 00:17:07,929 versions where the wing loading was higher near the tips of the savings 616 00:17:07,929 --> 00:17:07,939 higher near the tips of the savings 617 00:17:07,939 --> 00:17:15,700 higher near the tips of the savings would be greater 618 00:17:15,700 --> 00:17:15,710 619 00:17:15,710 --> 00:17:21,860 now what kind of agency or technical 620 00:17:21,860 --> 00:17:21,870 now what kind of agency or technical 621 00:17:21,870 --> 00:17:26,240 now what kind of agency or technical organization can spawn if it indeed it 622 00:17:26,240 --> 00:17:26,250 organization can spawn if it indeed it 623 00:17:26,250 --> 00:17:28,430 organization can spawn if it indeed it did spawn I didn't want that how do i 624 00:17:28,430 --> 00:17:28,440 did spawn I didn't want that how do i 625 00:17:28,440 --> 00:17:35,960 did spawn I didn't want that how do i cancel it spawn or nurture such an 626 00:17:35,960 --> 00:17:35,970 cancel it spawn or nurture such an 627 00:17:35,970 --> 00:17:39,590 cancel it spawn or nurture such an innovative research I like to think it's 628 00:17:39,590 --> 00:17:39,600 innovative research I like to think it's 629 00:17:39,600 --> 00:17:41,060 innovative research I like to think it's an organization that can challenge 630 00:17:41,060 --> 00:17:41,070 an organization that can challenge 631 00:17:41,070 --> 00:17:45,050 an organization that can challenge conventional wisdom conventional wisdom 632 00:17:45,050 --> 00:17:45,060 conventional wisdom conventional wisdom 633 00:17:45,060 --> 00:17:48,110 conventional wisdom conventional wisdom is all right if it's considered for what 634 00:17:48,110 --> 00:17:48,120 is all right if it's considered for what 635 00:17:48,120 --> 00:17:51,560 is all right if it's considered for what it really is it's a reasonable starting 636 00:17:51,560 --> 00:17:51,570 it really is it's a reasonable starting 637 00:17:51,570 --> 00:17:55,640 it really is it's a reasonable starting place but a habitual reliance on 638 00:17:55,640 --> 00:17:55,650 place but a habitual reliance on 639 00:17:55,650 --> 00:17:57,050 place but a habitual reliance on conventional wisdom leaves you 640 00:17:57,050 --> 00:17:57,060 conventional wisdom leaves you 641 00:17:57,060 --> 00:17:59,410 conventional wisdom leaves you relatively close to the starting place 642 00:17:59,410 --> 00:17:59,420 relatively close to the starting place 643 00:17:59,420 --> 00:18:03,220 relatively close to the starting place it increases the odds for the status quo 644 00:18:03,220 --> 00:18:03,230 it increases the odds for the status quo 645 00:18:03,230 --> 00:18:06,920 it increases the odds for the status quo that's why it's encouraging for me to 646 00:18:06,920 --> 00:18:06,930 that's why it's encouraging for me to 647 00:18:06,930 --> 00:18:09,200 that's why it's encouraging for me to see one of the things that our new 648 00:18:09,200 --> 00:18:09,210 see one of the things that our new 649 00:18:09,210 --> 00:18:11,560 see one of the things that our new administrator said in a recent address 650 00:18:11,560 --> 00:18:11,570 administrator said in a recent address 651 00:18:11,570 --> 00:18:15,920 administrator said in a recent address which i already showed you where he said 652 00:18:15,920 --> 00:18:15,930 which i already showed you where he said 653 00:18:15,930 --> 00:18:18,470 which i already showed you where he said in the new NASA will welcome a diversity 654 00:18:18,470 --> 00:18:18,480 in the new NASA will welcome a diversity 655 00:18:18,480 --> 00:18:20,540 in the new NASA will welcome a diversity of views and ideas from both inside and 656 00:18:20,540 --> 00:18:20,550 of views and ideas from both inside and 657 00:18:20,550 --> 00:18:24,290 of views and ideas from both inside and outside the organization and perhaps the 658 00:18:24,290 --> 00:18:24,300 outside the organization and perhaps the 659 00:18:24,300 --> 00:18:27,760 outside the organization and perhaps the words of retiring deputy administrator 660 00:18:27,760 --> 00:18:27,770 words of retiring deputy administrator 661 00:18:27,770 --> 00:18:31,790 words of retiring deputy administrator James Thompson that he wrote in the 662 00:18:31,790 --> 00:18:31,800 James Thompson that he wrote in the 663 00:18:31,800 --> 00:18:34,400 James Thompson that he wrote in the winter issue of the NASA magazine were 664 00:18:34,400 --> 00:18:34,410 winter issue of the NASA magazine were 665 00:18:34,410 --> 00:18:36,050 winter issue of the NASA magazine were intended to challenge conventional 666 00:18:36,050 --> 00:18:36,060 intended to challenge conventional 667 00:18:36,060 --> 00:18:40,820 intended to challenge conventional wisdom when he wrote I think sometimes 668 00:18:40,820 --> 00:18:40,830 wisdom when he wrote I think sometimes 669 00:18:40,830 --> 00:18:43,040 wisdom when he wrote I think sometimes NASA could use a little more internal 670 00:18:43,040 --> 00:18:43,050 NASA could use a little more internal 671 00:18:43,050 --> 00:18:47,600 NASA could use a little more internal controversy concern about conventional 672 00:18:47,600 --> 00:18:47,610 controversy concern about conventional 673 00:18:47,610 --> 00:18:50,060 controversy concern about conventional wisdom isn't limited only to the 674 00:18:50,060 --> 00:18:50,070 wisdom isn't limited only to the 675 00:18:50,070 --> 00:18:54,320 wisdom isn't limited only to the technical community for example here are 676 00:18:54,320 --> 00:18:54,330 technical community for example here are 677 00:18:54,330 --> 00:18:55,940 technical community for example here are the paraphrase words of a noted 678 00:18:55,940 --> 00:18:55,950 the paraphrase words of a noted 679 00:18:55,950 --> 00:19:01,730 the paraphrase words of a noted twentieth century theologian if you and 680 00:19:01,730 --> 00:19:01,740 twentieth century theologian if you and 681 00:19:01,740 --> 00:19:04,790 twentieth century theologian if you and I agree on every matter one of us has 682 00:19:04,790 --> 00:19:04,800 I agree on every matter one of us has 683 00:19:04,800 --> 00:19:09,980 I agree on every matter one of us has ceased thinking and perhaps dr. jb 684 00:19:09,980 --> 00:19:09,990 ceased thinking and perhaps dr. jb 685 00:19:09,990 --> 00:19:13,900 ceased thinking and perhaps dr. jb Harvey has said it as well as anyone 686 00:19:13,900 --> 00:19:13,910 Harvey has said it as well as anyone 687 00:19:13,910 --> 00:19:18,800 Harvey has said it as well as anyone this mismanagement of agreement not the 688 00:19:18,800 --> 00:19:18,810 this mismanagement of agreement not the 689 00:19:18,810 --> 00:19:21,890 this mismanagement of agreement not the inability to manage conflict is a single 690 00:19:21,890 --> 00:19:21,900 inability to manage conflict is a single 691 00:19:21,900 --> 00:19:23,450 inability to manage conflict is a single most pressing issue of most modern 692 00:19:23,450 --> 00:19:23,460 most pressing issue of most modern 693 00:19:23,460 --> 00:19:25,160 most pressing issue of most modern organizations 694 00:19:25,160 --> 00:19:25,170 organizations 695 00:19:25,170 --> 00:19:31,340 organizations I wander is a spirit conveyed by these 696 00:19:31,340 --> 00:19:31,350 I wander is a spirit conveyed by these 697 00:19:31,350 --> 00:19:35,870 I wander is a spirit conveyed by these four individuals seemingly expressing 698 00:19:35,870 --> 00:19:35,880 four individuals seemingly expressing 699 00:19:35,880 --> 00:19:38,260 four individuals seemingly expressing concern about conventional wisdom 700 00:19:38,260 --> 00:19:38,270 concern about conventional wisdom 701 00:19:38,270 --> 00:19:40,190 concern about conventional wisdom representative of the environment that 702 00:19:40,190 --> 00:19:40,200 representative of the environment that 703 00:19:40,200 --> 00:19:42,290 representative of the environment that dr. Wickham worked within during the 704 00:19:42,290 --> 00:19:42,300 dr. Wickham worked within during the 705 00:19:42,300 --> 00:19:44,090 dr. Wickham worked within during the years that he dominated the field of 706 00:19:44,090 --> 00:19:44,100 years that he dominated the field of 707 00:19:44,100 --> 00:19:48,980 years that he dominated the field of experimental transonic aerodynamics did 708 00:19:48,980 --> 00:19:48,990 experimental transonic aerodynamics did 709 00:19:48,990 --> 00:19:51,770 experimental transonic aerodynamics did his revolutionary ideas thrive because 710 00:19:51,770 --> 00:19:51,780 his revolutionary ideas thrive because 711 00:19:51,780 --> 00:19:53,300 his revolutionary ideas thrive because he worked in an environment that was 712 00:19:53,300 --> 00:19:53,310 he worked in an environment that was 713 00:19:53,310 --> 00:19:57,110 he worked in an environment that was unencumbered by conventional wisdom not 714 00:19:57,110 --> 00:19:57,120 unencumbered by conventional wisdom not 715 00:19:57,120 --> 00:20:04,670 unencumbered by conventional wisdom not quite as obvious as the need was for a 716 00:20:04,670 --> 00:20:04,680 quite as obvious as the need was for a 717 00:20:04,680 --> 00:20:06,650 quite as obvious as the need was for a revolutionary breakthrough in reducing 718 00:20:06,650 --> 00:20:06,660 revolutionary breakthrough in reducing 719 00:20:06,660 --> 00:20:10,480 revolutionary breakthrough in reducing the transonic wave drag there were a few 720 00:20:10,480 --> 00:20:10,490 the transonic wave drag there were a few 721 00:20:10,490 --> 00:20:13,160 the transonic wave drag there were a few who said that the benefits from the area 722 00:20:13,160 --> 00:20:13,170 who said that the benefits from the area 723 00:20:13,170 --> 00:20:16,420 who said that the benefits from the area rule were largely finest ratio effects 724 00:20:16,420 --> 00:20:16,430 rule were largely finest ratio effects 725 00:20:16,430 --> 00:20:20,930 rule were largely finest ratio effects and there was conventional wisdom which 726 00:20:20,930 --> 00:20:20,940 and there was conventional wisdom which 727 00:20:20,940 --> 00:20:22,520 and there was conventional wisdom which claimed that the benefits from the 728 00:20:22,520 --> 00:20:22,530 claimed that the benefits from the 729 00:20:22,530 --> 00:20:24,380 claimed that the benefits from the reduced shock strength provided by the 730 00:20:24,380 --> 00:20:24,390 reduced shock strength provided by the 731 00:20:24,390 --> 00:20:28,190 reduced shock strength provided by the supercritical airfoil would likely be 732 00:20:28,190 --> 00:20:28,200 supercritical airfoil would likely be 733 00:20:28,200 --> 00:20:31,400 supercritical airfoil would likely be overshadowed canceled out by high trim 734 00:20:31,400 --> 00:20:31,410 overshadowed canceled out by high trim 735 00:20:31,410 --> 00:20:37,490 overshadowed canceled out by high trim drag and some conventional conventional 736 00:20:37,490 --> 00:20:37,500 drag and some conventional conventional 737 00:20:37,500 --> 00:20:39,920 drag and some conventional conventional wisdom adherence thought that the 738 00:20:39,920 --> 00:20:39,930 wisdom adherence thought that the 739 00:20:39,930 --> 00:20:42,680 wisdom adherence thought that the winglets were simply extra aspect ratio 740 00:20:42,680 --> 00:20:42,690 winglets were simply extra aspect ratio 741 00:20:42,690 --> 00:20:49,000 winglets were simply extra aspect ratio in disguise 742 00:20:49,000 --> 00:20:49,010 743 00:20:49,010 --> 00:20:53,220 they were wrong in every case the 744 00:20:53,220 --> 00:20:53,230 they were wrong in every case the 745 00:20:53,230 --> 00:20:55,630 they were wrong in every case the original wind tunnel research work at 746 00:20:55,630 --> 00:20:55,640 original wind tunnel research work at 747 00:20:55,640 --> 00:21:00,070 original wind tunnel research work at Langley added to the confirmation flight 748 00:21:00,070 --> 00:21:00,080 Langley added to the confirmation flight 749 00:21:00,080 --> 00:21:02,620 Langley added to the confirmation flight data that was obtained out here at 750 00:21:02,620 --> 00:21:02,630 data that was obtained out here at 751 00:21:02,630 --> 00:21:05,740 data that was obtained out here at Dryden and the numerous numerous 752 00:21:05,740 --> 00:21:05,750 Dryden and the numerous numerous 753 00:21:05,750 --> 00:21:07,990 Dryden and the numerous numerous commercial and military applications of 754 00:21:07,990 --> 00:21:08,000 commercial and military applications of 755 00:21:08,000 --> 00:21:10,420 commercial and military applications of these three technologies have 756 00:21:10,420 --> 00:21:10,430 these three technologies have 757 00:21:10,430 --> 00:21:15,040 these three technologies have discredited conventional wisdom so the 758 00:21:15,040 --> 00:21:15,050 discredited conventional wisdom so the 759 00:21:15,050 --> 00:21:18,250 discredited conventional wisdom so the score is innovative radical transonic 760 00:21:18,250 --> 00:21:18,260 score is innovative radical transonic 761 00:21:18,260 --> 00:21:20,170 score is innovative radical transonic research that's how I like to describe 762 00:21:20,170 --> 00:21:20,180 research that's how I like to describe 763 00:21:20,180 --> 00:21:23,530 research that's how I like to describe what he did three conventional wisdom 764 00:21:23,530 --> 00:21:23,540 what he did three conventional wisdom 765 00:21:23,540 --> 00:21:28,780 what he did three conventional wisdom zero we should remember this score as we 766 00:21:28,780 --> 00:21:28,790 zero we should remember this score as we 767 00:21:28,790 --> 00:21:33,610 zero we should remember this score as we continue toward nasp and the external 768 00:21:33,610 --> 00:21:33,620 continue toward nasp and the external 769 00:21:33,620 --> 00:21:37,500 continue toward nasp and the external burning experiment and follow-on 770 00:21:37,500 --> 00:21:37,510 burning experiment and follow-on 771 00:21:37,510 --> 00:21:40,330 burning experiment and follow-on supersonic and hypersonic vehicles after 772 00:21:40,330 --> 00:21:40,340 supersonic and hypersonic vehicles after 773 00:21:40,340 --> 00:21:47,980 supersonic and hypersonic vehicles after that hypersonic vehicles must still pass 774 00:21:47,980 --> 00:21:47,990 that hypersonic vehicles must still pass 775 00:21:47,990 --> 00:21:52,570 that hypersonic vehicles must still pass through the transonic toll gate there's 776 00:21:52,570 --> 00:21:52,580 through the transonic toll gate there's 777 00:21:52,580 --> 00:21:54,550 through the transonic toll gate there's a toll extracted every time you pass 778 00:21:54,550 --> 00:21:54,560 a toll extracted every time you pass 779 00:21:54,560 --> 00:21:58,090 a toll extracted every time you pass through and dr. Wickham is his research 780 00:21:58,090 --> 00:21:58,100 through and dr. Wickham is his research 781 00:21:58,100 --> 00:21:59,800 through and dr. Wickham is his research has shown that the cost of the gate can 782 00:21:59,800 --> 00:21:59,810 has shown that the cost of the gate can 783 00:21:59,810 --> 00:22:02,080 has shown that the cost of the gate can be lowered by innovative experimental 784 00:22:02,080 --> 00:22:02,090 be lowered by innovative experimental 785 00:22:02,090 --> 00:22:07,930 be lowered by innovative experimental work and amazingly enough even if there 786 00:22:07,930 --> 00:22:07,940 work and amazingly enough even if there 787 00:22:07,940 --> 00:22:11,560 work and amazingly enough even if there is not a red team or a blue team in 788 00:22:11,560 --> 00:22:11,570 is not a red team or a blue team in 789 00:22:11,570 --> 00:22:21,740 is not a red team or a blue team in support that would be an inside thing 790 00:22:21,740 --> 00:22:21,750 791 00:22:21,750 --> 00:22:26,669 we have a recent example by the way that 792 00:22:26,669 --> 00:22:26,679 we have a recent example by the way that 793 00:22:26,679 --> 00:22:29,880 we have a recent example by the way that I think reflects the encroachment of 794 00:22:29,880 --> 00:22:29,890 I think reflects the encroachment of 795 00:22:29,890 --> 00:22:31,830 I think reflects the encroachment of conventional wisdom in the case of some 796 00:22:31,830 --> 00:22:31,840 conventional wisdom in the case of some 797 00:22:31,840 --> 00:22:33,029 conventional wisdom in the case of some of the airplanes that flew in the Gulf 798 00:22:33,029 --> 00:22:33,039 of the airplanes that flew in the Gulf 799 00:22:33,039 --> 00:22:35,970 of the airplanes that flew in the Gulf War some of the data I have looked at 800 00:22:35,970 --> 00:22:35,980 War some of the data I have looked at 801 00:22:35,980 --> 00:22:38,580 War some of the data I have looked at and now this would be lift and drag data 802 00:22:38,580 --> 00:22:38,590 and now this would be lift and drag data 803 00:22:38,590 --> 00:22:41,220 and now this would be lift and drag data of contemporary high-performance 804 00:22:41,220 --> 00:22:41,230 of contemporary high-performance 805 00:22:41,230 --> 00:22:45,000 of contemporary high-performance aircraft using the war shall reveal an 806 00:22:45,000 --> 00:22:45,010 aircraft using the war shall reveal an 807 00:22:45,010 --> 00:22:48,320 aircraft using the war shall reveal an erosion of aero design finesse a 808 00:22:48,320 --> 00:22:48,330 erosion of aero design finesse a 809 00:22:48,330 --> 00:22:52,769 erosion of aero design finesse a slippage of aero design discipline by 810 00:22:52,769 --> 00:22:52,779 slippage of aero design discipline by 811 00:22:52,779 --> 00:22:55,409 slippage of aero design discipline by discipline I mean no sticking to the 812 00:22:55,409 --> 00:22:55,419 discipline I mean no sticking to the 813 00:22:55,419 --> 00:22:58,139 discipline I mean no sticking to the principles compared to aircraft designed 814 00:22:58,139 --> 00:22:58,149 principles compared to aircraft designed 815 00:22:58,149 --> 00:23:03,090 principles compared to aircraft designed and built in the 50s and 60s to be more 816 00:23:03,090 --> 00:23:03,100 and built in the 50s and 60s to be more 817 00:23:03,100 --> 00:23:05,750 and built in the 50s and 60s to be more specific the way drag is too high and 818 00:23:05,750 --> 00:23:05,760 specific the way drag is too high and 819 00:23:05,760 --> 00:23:08,970 specific the way drag is too high and parasite drag is too high compared to 820 00:23:08,970 --> 00:23:08,980 parasite drag is too high compared to 821 00:23:08,980 --> 00:23:12,510 parasite drag is too high compared to those earlier airplanes this indicates 822 00:23:12,510 --> 00:23:12,520 those earlier airplanes this indicates 823 00:23:12,520 --> 00:23:15,000 those earlier airplanes this indicates to me the conventional wisdom does not 824 00:23:15,000 --> 00:23:15,010 to me the conventional wisdom does not 825 00:23:15,010 --> 00:23:19,260 to me the conventional wisdom does not go away or become old-fashioned every 826 00:23:19,260 --> 00:23:19,270 go away or become old-fashioned every 827 00:23:19,270 --> 00:23:22,560 go away or become old-fashioned every generation has its own form in fact it 828 00:23:22,560 --> 00:23:22,570 generation has its own form in fact it 829 00:23:22,570 --> 00:23:24,389 generation has its own form in fact it seems to me like it's almost like 830 00:23:24,389 --> 00:23:24,399 seems to me like it's almost like 831 00:23:24,399 --> 00:23:27,779 seems to me like it's almost like chicken pox or measles or mumps that 832 00:23:27,779 --> 00:23:27,789 chicken pox or measles or mumps that 833 00:23:27,789 --> 00:23:30,029 chicken pox or measles or mumps that every generation has its cases of 834 00:23:30,029 --> 00:23:30,039 every generation has its cases of 835 00:23:30,039 --> 00:23:33,750 every generation has its cases of conventional wisdom just because each 836 00:23:33,750 --> 00:23:33,760 conventional wisdom just because each 837 00:23:33,760 --> 00:23:35,610 conventional wisdom just because each generation thinks it's more enlightened 838 00:23:35,610 --> 00:23:35,620 generation thinks it's more enlightened 839 00:23:35,620 --> 00:23:40,549 generation thinks it's more enlightened it just doesn't work that way further 840 00:23:40,549 --> 00:23:40,559 it just doesn't work that way further 841 00:23:40,559 --> 00:23:45,450 it just doesn't work that way further just because this airplane that was 842 00:23:45,450 --> 00:23:45,460 just because this airplane that was 843 00:23:45,460 --> 00:23:47,930 just because this airplane that was dedicated today one of the two an 844 00:23:47,930 --> 00:23:47,940 dedicated today one of the two an 845 00:23:47,940 --> 00:23:50,760 dedicated today one of the two an important transonic research facility 846 00:23:50,760 --> 00:23:50,770 important transonic research facility 847 00:23:50,770 --> 00:23:54,389 important transonic research facility has been retired maybe some of you will 848 00:23:54,389 --> 00:23:54,399 has been retired maybe some of you will 849 00:23:54,399 --> 00:23:59,639 has been retired maybe some of you will think of it as a museum piece and I 850 00:23:59,639 --> 00:23:59,649 think of it as a museum piece and I 851 00:23:59,649 --> 00:24:03,029 think of it as a museum piece and I guess it is and it also represents 852 00:24:03,029 --> 00:24:03,039 guess it is and it also represents 853 00:24:03,039 --> 00:24:05,700 guess it is and it also represents history and transonic research has a 854 00:24:05,700 --> 00:24:05,710 history and transonic research has a 855 00:24:05,710 --> 00:24:09,029 history and transonic research has a history nevertheless we should not think 856 00:24:09,029 --> 00:24:09,039 history nevertheless we should not think 857 00:24:09,039 --> 00:24:12,659 history nevertheless we should not think of transonic research in historical 858 00:24:12,659 --> 00:24:12,669 of transonic research in historical 859 00:24:12,669 --> 00:24:16,440 of transonic research in historical terms transonic problems are still with 860 00:24:16,440 --> 00:24:16,450 terms transonic problems are still with 861 00:24:16,450 --> 00:24:19,049 terms transonic problems are still with us the brilliant transonic innovations 862 00:24:19,049 --> 00:24:19,059 us the brilliant transonic innovations 863 00:24:19,059 --> 00:24:21,450 us the brilliant transonic innovations of the 50s and 60s did not revoke the 864 00:24:21,450 --> 00:24:21,460 of the 50s and 60s did not revoke the 865 00:24:21,460 --> 00:24:24,269 of the 50s and 60s did not revoke the laws of physics concerning transonic 866 00:24:24,269 --> 00:24:24,279 laws of physics concerning transonic 867 00:24:24,279 --> 00:24:28,139 laws of physics concerning transonic flow for future generations it is my 868 00:24:28,139 --> 00:24:28,149 flow for future generations it is my 869 00:24:28,149 --> 00:24:30,510 flow for future generations it is my hope that the supercritical wing 870 00:24:30,510 --> 00:24:30,520 hope that the supercritical wing 871 00:24:30,520 --> 00:24:32,409 hope that the supercritical wing research airplane 872 00:24:32,409 --> 00:24:32,419 research airplane 873 00:24:32,419 --> 00:24:35,590 research airplane when I walk by it out there and when 874 00:24:35,590 --> 00:24:35,600 when I walk by it out there and when 875 00:24:35,600 --> 00:24:38,580 when I walk by it out there and when other people walk by it is my hope that 876 00:24:38,580 --> 00:24:38,590 other people walk by it is my hope that 877 00:24:38,590 --> 00:24:43,109 other people walk by it is my hope that it will be representative of the 878 00:24:43,109 --> 00:24:43,119 it will be representative of the 879 00:24:43,119 --> 00:24:45,609 it will be representative of the innovative transonic work of the past 880 00:24:45,609 --> 00:24:45,619 innovative transonic work of the past 881 00:24:45,619 --> 00:24:48,909 innovative transonic work of the past but in addition it should remind us that 882 00:24:48,909 --> 00:24:48,919 but in addition it should remind us that 883 00:24:48,919 --> 00:24:51,099 but in addition it should remind us that if we limit transonic research to the 884 00:24:51,099 --> 00:24:51,109 if we limit transonic research to the 885 00:24:51,109 --> 00:24:55,029 if we limit transonic research to the past and only consider it history the 886 00:24:55,029 --> 00:24:55,039 past and only consider it history the 887 00:24:55,039 --> 00:24:57,279 past and only consider it history the charges at the toll gate the transonic 888 00:24:57,279 --> 00:24:57,289 charges at the toll gate the transonic 889 00:24:57,289 --> 00:25:01,060 charges at the toll gate the transonic toll gate will be unnecessarily high for 890 00:25:01,060 --> 00:25:01,070 toll gate will be unnecessarily high for 891 00:25:01,070 --> 00:25:03,239 toll gate will be unnecessarily high for some future supersonic and hypersonic 892 00:25:03,239 --> 00:25:03,249 some future supersonic and hypersonic 893 00:25:03,249 --> 00:25:08,349 some future supersonic and hypersonic airplanes this would be a good place I 894 00:25:08,349 --> 00:25:08,359 airplanes this would be a good place I 895 00:25:08,359 --> 00:25:10,840 airplanes this would be a good place I think to go back to dr. Dryden and 896 00:25:10,840 --> 00:25:10,850 think to go back to dr. Dryden and 897 00:25:10,850 --> 00:25:15,820 think to go back to dr. Dryden and indicate what he said quote the most 898 00:25:15,820 --> 00:25:15,830 indicate what he said quote the most 899 00:25:15,830 --> 00:25:18,810 indicate what he said quote the most important tool in aeronautical research 900 00:25:18,810 --> 00:25:18,820 important tool in aeronautical research 901 00:25:18,820 --> 00:25:23,409 important tool in aeronautical research comma even more than the large wooden 902 00:25:23,409 --> 00:25:23,419 comma even more than the large wooden 903 00:25:23,419 --> 00:25:26,940 comma even more than the large wooden tunnel comma and then I'd like to add 904 00:25:26,940 --> 00:25:26,950 tunnel comma and then I'd like to add 905 00:25:26,950 --> 00:25:31,450 tunnel comma and then I'd like to add this goes for airplanes to is the human 906 00:25:31,450 --> 00:25:31,460 this goes for airplanes to is the human 907 00:25:31,460 --> 00:25:34,599 this goes for airplanes to is the human mind the most important tool for 908 00:25:34,599 --> 00:25:34,609 mind the most important tool for 909 00:25:34,609 --> 00:25:37,320 mind the most important tool for aeronautical research is the human mind 910 00:25:37,320 --> 00:25:37,330 aeronautical research is the human mind 911 00:25:37,330 --> 00:25:41,529 aeronautical research is the human mind credit that to dr. Crichton this is the 912 00:25:41,529 --> 00:25:41,539 credit that to dr. Crichton this is the 913 00:25:41,539 --> 00:25:43,659 credit that to dr. Crichton this is the end of my perspective on this if you 914 00:25:43,659 --> 00:25:43,669 end of my perspective on this if you 915 00:25:43,669 --> 00:25:45,999 end of my perspective on this if you call it a wrap up I want to now 916 00:25:45,999 --> 00:25:46,009 call it a wrap up I want to now 917 00:25:46,009 --> 00:25:50,739 call it a wrap up I want to now acknowledge team members both at Langley 918 00:25:50,739 --> 00:25:50,749 acknowledge team members both at Langley 919 00:25:50,749 --> 00:25:54,549 acknowledge team members both at Langley and here in closing it's appropriate to 920 00:25:54,549 --> 00:25:54,559 and here in closing it's appropriate to 921 00:25:54,559 --> 00:25:55,869 and here in closing it's appropriate to mention some of the team members who 922 00:25:55,869 --> 00:25:55,879 mention some of the team members who 923 00:25:55,879 --> 00:25:58,899 mention some of the team members who worked with dr. Wickham Tom Kelly Perry 924 00:25:58,899 --> 00:25:58,909 worked with dr. Wickham Tom Kelly Perry 925 00:25:58,909 --> 00:26:03,779 worked with dr. Wickham Tom Kelly Perry Hanson Dennis Bartlett James blackwell 926 00:26:03,779 --> 00:26:03,789 Hanson Dennis Bartlett James blackwell 927 00:26:03,789 --> 00:26:06,129 Hanson Dennis Bartlett James blackwell he's introduced as Mickey today that's 928 00:26:06,129 --> 00:26:06,139 he's introduced as Mickey today that's 929 00:26:06,139 --> 00:26:09,460 he's introduced as Mickey today that's what he goes by I understand Larry 930 00:26:09,460 --> 00:26:09,470 what he goes by I understand Larry 931 00:26:09,470 --> 00:26:12,430 what he goes by I understand Larry Lofton in an administrative capacity and 932 00:26:12,430 --> 00:26:12,440 Lofton in an administrative capacity and 933 00:26:12,440 --> 00:26:15,899 Lofton in an administrative capacity and out here d dealer in an administrative 934 00:26:15,899 --> 00:26:15,909 out here d dealer in an administrative 935 00:26:15,909 --> 00:26:20,109 out here d dealer in an administrative capacity Ted errors though he didn't 936 00:26:20,109 --> 00:26:20,119 capacity Ted errors though he didn't 937 00:26:20,119 --> 00:26:22,840 capacity Ted errors though he didn't work on their plane that was dedicated 938 00:26:22,840 --> 00:26:22,850 work on their plane that was dedicated 939 00:26:22,850 --> 00:26:24,849 work on their plane that was dedicated today was a team member on the 940 00:26:24,849 --> 00:26:24,859 today was a team member on the 941 00:26:24,859 --> 00:26:26,820 today was a team member on the supercritical wing crew back at Langley 942 00:26:26,820 --> 00:26:26,830 supercritical wing crew back at Langley 943 00:26:26,830 --> 00:26:30,430 supercritical wing crew back at Langley as you've already heard working with dr. 944 00:26:30,430 --> 00:26:30,440 as you've already heard working with dr. 945 00:26:30,440 --> 00:26:34,450 as you've already heard working with dr. Wickham he worked primarily on the lower 946 00:26:34,450 --> 00:26:34,460 Wickham he worked primarily on the lower 947 00:26:34,460 --> 00:26:37,720 Wickham he worked primarily on the lower aspect ratio of tact application his 948 00:26:37,720 --> 00:26:37,730 aspect ratio of tact application his 949 00:26:37,730 --> 00:26:40,539 aspect ratio of tact application his transfer dryden significantly raised our 950 00:26:40,539 --> 00:26:40,549 transfer dryden significantly raised our 951 00:26:40,549 --> 00:26:43,239 transfer dryden significantly raised our transonic and supercritical experience 952 00:26:43,239 --> 00:26:43,249 transonic and supercritical experience 953 00:26:43,249 --> 00:26:45,010 transonic and supercritical experience and knowledge out here 954 00:26:45,010 --> 00:26:45,020 and knowledge out here 955 00:26:45,020 --> 00:26:48,150 and knowledge out here as for the Dryden test research team I 956 00:26:48,150 --> 00:26:48,160 as for the Dryden test research team I 957 00:26:48,160 --> 00:26:50,530 as for the Dryden test research team I want to recognize them in this closing 958 00:26:50,530 --> 00:26:50,540 want to recognize them in this closing 959 00:26:50,540 --> 00:26:57,310 want to recognize them in this closing slide and we already know that we don't 960 00:26:57,310 --> 00:26:57,320 slide and we already know that we don't 961 00:26:57,320 --> 00:27:00,280 slide and we already know that we don't have all the names on their loose tears 962 00:27:00,280 --> 00:27:00,290 have all the names on their loose tears 963 00:27:00,290 --> 00:27:02,530 have all the names on their loose tears for example should be on there and he 964 00:27:02,530 --> 00:27:02,540 for example should be on there and he 965 00:27:02,540 --> 00:27:04,360 for example should be on there and he isn't and I thought of another and I 966 00:27:04,360 --> 00:27:04,370 isn't and I thought of another and I 967 00:27:04,370 --> 00:27:08,500 isn't and I thought of another and I don't believe John Kerry is what we're 968 00:27:08,500 --> 00:27:08,510 don't believe John Kerry is what we're 969 00:27:08,510 --> 00:27:15,580 don't believe John Kerry is what we're going to do after cancel a finishes is 970 00:27:15,580 --> 00:27:15,590 going to do after cancel a finishes is 971 00:27:15,590 --> 00:27:19,060 going to do after cancel a finishes is put this back up again along with a view 972 00:27:19,060 --> 00:27:19,070 put this back up again along with a view 973 00:27:19,070 --> 00:27:20,680 put this back up again along with a view graph which shows the digital 974 00:27:20,680 --> 00:27:20,690 graph which shows the digital 975 00:27:20,690 --> 00:27:24,070 graph which shows the digital fly-by-wire team members and then we'll 976 00:27:24,070 --> 00:27:24,080 fly-by-wire team members and then we'll 977 00:27:24,080 --> 00:27:27,910 fly-by-wire team members and then we'll ask people out in the audience that that 978 00:27:27,910 --> 00:27:27,920 ask people out in the audience that that 979 00:27:27,920 --> 00:27:29,650 ask people out in the audience that that know that there are names missing to 980 00:27:29,650 --> 00:27:29,660 know that there are names missing to 981 00:27:29,660 --> 00:27:34,600 know that there are names missing to come up and write them on this tablet 982 00:27:34,600 --> 00:27:34,610 come up and write them on this tablet 983 00:27:34,610 --> 00:27:39,400 come up and write them on this tablet please so we'll blank this out now and 984 00:27:39,400 --> 00:27:39,410 please so we'll blank this out now and 985 00:27:39,410 --> 00:27:42,300 please so we'll blank this out now and will try to show it after 10 is finished 986 00:27:42,300 --> 00:27:42,310 will try to show it after 10 is finished 987 00:27:42,310 --> 00:27:45,610 will try to show it after 10 is finished thank you very much