1 00:00:02,570 --> 00:00:09,080 sounds good okay first of all while we 2 00:00:09,080 --> 00:00:09,090 sounds good okay first of all while we 3 00:00:09,090 --> 00:00:11,839 sounds good okay first of all while we start by you getting just a brief 4 00:00:11,839 --> 00:00:11,849 start by you getting just a brief 5 00:00:11,849 --> 00:00:17,720 start by you getting just a brief description of what laminar flow is it's 6 00:00:17,720 --> 00:00:17,730 description of what laminar flow is it's 7 00:00:17,730 --> 00:00:19,730 description of what laminar flow is it's an interesting question to give a brief 8 00:00:19,730 --> 00:00:19,740 an interesting question to give a brief 9 00:00:19,740 --> 00:00:23,269 an interesting question to give a brief description in essence what we're trying 10 00:00:23,269 --> 00:00:23,279 description in essence what we're trying 11 00:00:23,279 --> 00:00:28,370 description in essence what we're trying to do is control the boundary layer so 12 00:00:28,370 --> 00:00:28,380 to do is control the boundary layer so 13 00:00:28,380 --> 00:00:31,099 to do is control the boundary layer so that it looks a lot like a simple 14 00:00:31,099 --> 00:00:31,109 that it looks a lot like a simple 15 00:00:31,109 --> 00:00:33,049 that it looks a lot like a simple simple-minded way it would be if you 16 00:00:33,049 --> 00:00:33,059 simple-minded way it would be if you 17 00:00:33,059 --> 00:00:34,580 simple-minded way it would be if you looked at a car that was in a smoke 18 00:00:34,580 --> 00:00:34,590 looked at a car that was in a smoke 19 00:00:34,590 --> 00:00:36,049 looked at a car that was in a smoke tunnel and you see the commercials on TV 20 00:00:36,049 --> 00:00:36,059 tunnel and you see the commercials on TV 21 00:00:36,059 --> 00:00:38,119 tunnel and you see the commercials on TV and you see the smoke waves going over 22 00:00:38,119 --> 00:00:38,129 and you see the smoke waves going over 23 00:00:38,129 --> 00:00:40,639 and you see the smoke waves going over the car and they're nice and smooth and 24 00:00:40,639 --> 00:00:40,649 the car and they're nice and smooth and 25 00:00:40,649 --> 00:00:42,650 the car and they're nice and smooth and then later on they burst and they become 26 00:00:42,650 --> 00:00:42,660 then later on they burst and they become 27 00:00:42,660 --> 00:00:44,959 then later on they burst and they become a big bubble the laminar flow part is a 28 00:00:44,959 --> 00:00:44,969 a big bubble the laminar flow part is a 29 00:00:44,969 --> 00:00:46,250 a big bubble the laminar flow part is a place where they're smooth where the air 30 00:00:46,250 --> 00:00:46,260 place where they're smooth where the air 31 00:00:46,260 --> 00:00:48,350 place where they're smooth where the air actually flows over the wing in a very 32 00:00:48,350 --> 00:00:48,360 actually flows over the wing in a very 33 00:00:48,360 --> 00:00:50,750 actually flows over the wing in a very smooth manner you know in a low drag 34 00:00:50,750 --> 00:00:50,760 smooth manner you know in a low drag 35 00:00:50,760 --> 00:00:53,360 smooth manner you know in a low drag configuration in a more efficient way 36 00:00:53,360 --> 00:00:53,370 configuration in a more efficient way 37 00:00:53,370 --> 00:00:56,150 configuration in a more efficient way it's all air foils have some laminar and 38 00:00:56,150 --> 00:00:56,160 it's all air foils have some laminar and 39 00:00:56,160 --> 00:00:59,510 it's all air foils have some laminar and have some turbulent flow on them in the 40 00:00:59,510 --> 00:00:59,520 have some turbulent flow on them in the 41 00:00:59,520 --> 00:01:01,099 have some turbulent flow on them in the area where it's laminar it's basically 42 00:01:01,099 --> 00:01:01,109 area where it's laminar it's basically 43 00:01:01,109 --> 00:01:02,510 area where it's laminar it's basically the more efficient portion of the 44 00:01:02,510 --> 00:01:02,520 the more efficient portion of the 45 00:01:02,520 --> 00:01:08,149 the more efficient portion of the airfoil another common phenomenon that 46 00:01:08,149 --> 00:01:08,159 airfoil another common phenomenon that 47 00:01:08,159 --> 00:01:09,950 airfoil another common phenomenon that people can relate to laminar flow would 48 00:01:09,950 --> 00:01:09,960 people can relate to laminar flow would 49 00:01:09,960 --> 00:01:12,140 people can relate to laminar flow would be a cigarette smoke it's the portion of 50 00:01:12,140 --> 00:01:12,150 be a cigarette smoke it's the portion of 51 00:01:12,150 --> 00:01:13,370 be a cigarette smoke it's the portion of the cigarette smoke that comes off of 52 00:01:13,370 --> 00:01:13,380 the cigarette smoke that comes off of 53 00:01:13,380 --> 00:01:15,830 the cigarette smoke that comes off of the cigarette real straight and smooth 54 00:01:15,830 --> 00:01:15,840 the cigarette real straight and smooth 55 00:01:15,840 --> 00:01:18,499 the cigarette real straight and smooth and tightly wound and then later on it 56 00:01:18,499 --> 00:01:18,509 and tightly wound and then later on it 57 00:01:18,509 --> 00:01:21,950 and tightly wound and then later on it bursts and there's this big smoke spot 58 00:01:21,950 --> 00:01:21,960 bursts and there's this big smoke spot 59 00:01:21,960 --> 00:01:25,429 bursts and there's this big smoke spot in the middle of or smoke ball in the 60 00:01:25,429 --> 00:01:25,439 in the middle of or smoke ball in the 61 00:01:25,439 --> 00:01:26,870 in the middle of or smoke ball in the middle of off of the cigarette that's 62 00:01:26,870 --> 00:01:26,880 middle of off of the cigarette that's 63 00:01:26,880 --> 00:01:28,520 middle of off of the cigarette that's the turbulent section the straight piece 64 00:01:28,520 --> 00:01:28,530 the turbulent section the straight piece 65 00:01:28,530 --> 00:01:30,740 the turbulent section the straight piece is where the laminar flow is so it's the 66 00:01:30,740 --> 00:01:30,750 is where the laminar flow is so it's the 67 00:01:30,750 --> 00:01:34,249 is where the laminar flow is so it's the tightly wound well organized smooth air 68 00:01:34,249 --> 00:01:34,259 tightly wound well organized smooth air 69 00:01:34,259 --> 00:01:36,020 tightly wound well organized smooth air for airflow that you're talking about 70 00:01:36,020 --> 00:01:36,030 for airflow that you're talking about 71 00:01:36,030 --> 00:01:46,480 for airflow that you're talking about when you say laminar versus turbulent 72 00:01:46,480 --> 00:01:46,490 73 00:01:46,490 --> 00:01:53,240 associated with supersonic well probably 74 00:01:53,240 --> 00:01:53,250 associated with supersonic well probably 75 00:01:53,250 --> 00:01:54,950 associated with supersonic well probably the biggest difference in supersonic 76 00:01:54,950 --> 00:01:54,960 the biggest difference in supersonic 77 00:01:54,960 --> 00:01:58,310 the biggest difference in supersonic laminar flow is that is the airfoils and 78 00:01:58,310 --> 00:01:58,320 laminar flow is that is the airfoils and 79 00:01:58,320 --> 00:02:00,860 laminar flow is that is the airfoils and the wings tend to be more highly swept 80 00:02:00,860 --> 00:02:00,870 the wings tend to be more highly swept 81 00:02:00,870 --> 00:02:03,530 the wings tend to be more highly swept and that the leading edges are you know 82 00:02:03,530 --> 00:02:03,540 and that the leading edges are you know 83 00:02:03,540 --> 00:02:06,050 and that the leading edges are you know and the order of 35 to 70 degrees swept 84 00:02:06,050 --> 00:02:06,060 and the order of 35 to 70 degrees swept 85 00:02:06,060 --> 00:02:09,249 and the order of 35 to 70 degrees swept back from a 90 degree angle and 86 00:02:09,249 --> 00:02:09,259 back from a 90 degree angle and 87 00:02:09,259 --> 00:02:12,410 back from a 90 degree angle and typically a subsonic laminar flow 88 00:02:12,410 --> 00:02:12,420 typically a subsonic laminar flow 89 00:02:12,420 --> 00:02:13,880 typically a subsonic laminar flow airfoil doesn't have quite that much 90 00:02:13,880 --> 00:02:13,890 airfoil doesn't have quite that much 91 00:02:13,890 --> 00:02:17,060 airfoil doesn't have quite that much sweep and the sweep actually makes the 92 00:02:17,060 --> 00:02:17,070 sweep and the sweep actually makes the 93 00:02:17,070 --> 00:02:19,070 sweep and the sweep actually makes the airfoil it makes it more difficult to 94 00:02:19,070 --> 00:02:19,080 airfoil it makes it more difficult to 95 00:02:19,080 --> 00:02:20,720 airfoil it makes it more difficult to maintain laminar flow because you have a 96 00:02:20,720 --> 00:02:20,730 maintain laminar flow because you have a 97 00:02:20,730 --> 00:02:23,570 maintain laminar flow because you have a component of inbound air or an air 98 00:02:23,570 --> 00:02:23,580 component of inbound air or an air 99 00:02:23,580 --> 00:02:25,250 component of inbound air or an air molecule that's coming towards the swept 100 00:02:25,250 --> 00:02:25,260 molecule that's coming towards the swept 101 00:02:25,260 --> 00:02:27,620 molecule that's coming towards the swept wing part of it goes straight back but 102 00:02:27,620 --> 00:02:27,630 wing part of it goes straight back but 103 00:02:27,630 --> 00:02:29,390 wing part of it goes straight back but part of it goes out towards the wingtip 104 00:02:29,390 --> 00:02:29,400 part of it goes out towards the wingtip 105 00:02:29,400 --> 00:02:31,490 part of it goes out towards the wingtip and that's called cross flow and cross 106 00:02:31,490 --> 00:02:31,500 and that's called cross flow and cross 107 00:02:31,500 --> 00:02:33,080 and that's called cross flow and cross flow is the phenomenon that makes 108 00:02:33,080 --> 00:02:33,090 flow is the phenomenon that makes 109 00:02:33,090 --> 00:02:34,490 flow is the phenomenon that makes supersonic laminar flow was one of the 110 00:02:34,490 --> 00:02:34,500 supersonic laminar flow was one of the 111 00:02:34,500 --> 00:02:35,960 supersonic laminar flow was one of the phenomenon that makes supersonic laminar 112 00:02:35,960 --> 00:02:35,970 phenomenon that makes supersonic laminar 113 00:02:35,970 --> 00:02:37,820 phenomenon that makes supersonic laminar flow more difficult to maintain than 114 00:02:37,820 --> 00:02:37,830 flow more difficult to maintain than 115 00:02:37,830 --> 00:02:40,720 flow more difficult to maintain than subsonic laminar flow it's much more 116 00:02:40,720 --> 00:02:40,730 subsonic laminar flow it's much more 117 00:02:40,730 --> 00:02:44,720 subsonic laminar flow it's much more much more force a larger forcing 118 00:02:44,720 --> 00:02:44,730 much more force a larger forcing 119 00:02:44,730 --> 00:02:46,880 much more force a larger forcing function if you will for supersonic 120 00:02:46,880 --> 00:02:46,890 function if you will for supersonic 121 00:02:46,890 --> 00:02:48,290 function if you will for supersonic laminar flow than it is for subsonic 122 00:02:48,290 --> 00:02:48,300 laminar flow than it is for subsonic 123 00:02:48,300 --> 00:02:50,410 laminar flow than it is for subsonic laminar flow there's also another 124 00:02:50,410 --> 00:02:50,420 laminar flow there's also another 125 00:02:50,420 --> 00:02:53,000 laminar flow there's also another another concern and it has to do with 126 00:02:53,000 --> 00:02:53,010 another concern and it has to do with 127 00:02:53,010 --> 00:02:54,949 another concern and it has to do with the size of a leading edge radius and 128 00:02:54,949 --> 00:02:54,959 the size of a leading edge radius and 129 00:02:54,959 --> 00:02:57,650 the size of a leading edge radius and the fact that the attachment line or the 130 00:02:57,650 --> 00:02:57,660 the fact that the attachment line or the 131 00:02:57,660 --> 00:02:59,840 the fact that the attachment line or the place where the pressure actually 132 00:02:59,840 --> 00:02:59,850 place where the pressure actually 133 00:02:59,850 --> 00:03:01,729 place where the pressure actually separate the molecules actually 134 00:03:01,729 --> 00:03:01,739 separate the molecules actually 135 00:03:01,739 --> 00:03:03,530 separate the molecules actually separates some go over the top some go 136 00:03:03,530 --> 00:03:03,540 separates some go over the top some go 137 00:03:03,540 --> 00:03:05,360 separates some go over the top some go over the bottom that area would be 138 00:03:05,360 --> 00:03:05,370 over the bottom that area would be 139 00:03:05,370 --> 00:03:07,970 over the bottom that area would be called the stagnation point or the whole 140 00:03:07,970 --> 00:03:07,980 called the stagnation point or the whole 141 00:03:07,980 --> 00:03:10,100 called the stagnation point or the whole line of those would be called the 142 00:03:10,100 --> 00:03:10,110 line of those would be called the 143 00:03:10,110 --> 00:03:12,550 line of those would be called the attachment line and that attachment line 144 00:03:12,550 --> 00:03:12,560 attachment line and that attachment line 145 00:03:12,560 --> 00:03:14,750 attachment line and that attachment line controlling exactly where that is on a 146 00:03:14,750 --> 00:03:14,760 controlling exactly where that is on a 147 00:03:14,760 --> 00:03:16,610 controlling exactly where that is on a swept wing and a supersonic wing is a 148 00:03:16,610 --> 00:03:16,620 swept wing and a supersonic wing is a 149 00:03:16,620 --> 00:03:17,960 swept wing and a supersonic wing is a little bit more difficult than it is 150 00:03:17,960 --> 00:03:17,970 little bit more difficult than it is 151 00:03:17,970 --> 00:03:20,330 little bit more difficult than it is necessarily on the subsonic wing so 152 00:03:20,330 --> 00:03:20,340 necessarily on the subsonic wing so 153 00:03:20,340 --> 00:03:22,790 necessarily on the subsonic wing so we're again supersonic wings tend to be 154 00:03:22,790 --> 00:03:22,800 we're again supersonic wings tend to be 155 00:03:22,800 --> 00:03:24,770 we're again supersonic wings tend to be swept highly making it much more 156 00:03:24,770 --> 00:03:24,780 swept highly making it much more 157 00:03:24,780 --> 00:03:27,229 swept highly making it much more difficult to control exactly where the 158 00:03:27,229 --> 00:03:27,239 difficult to control exactly where the 159 00:03:27,239 --> 00:03:28,670 difficult to control exactly where the attachment-line occurs so those are the 160 00:03:28,670 --> 00:03:28,680 attachment-line occurs so those are the 161 00:03:28,680 --> 00:03:32,110 attachment-line occurs so those are the two things that make it more difficult 162 00:03:32,110 --> 00:03:32,120 two things that make it more difficult 163 00:03:32,120 --> 00:03:34,759 two things that make it more difficult the pressure distribution itself is a 164 00:03:34,759 --> 00:03:34,769 the pressure distribution itself is a 165 00:03:34,769 --> 00:03:36,740 the pressure distribution itself is a lot more difficult to maintain you in 166 00:03:36,740 --> 00:03:36,750 lot more difficult to maintain you in 167 00:03:36,750 --> 00:03:38,949 lot more difficult to maintain you in order to maintain it in a laminar flow 168 00:03:38,949 --> 00:03:38,959 order to maintain it in a laminar flow 169 00:03:38,959 --> 00:03:40,789 order to maintain it in a laminar flow conducive a pressure distribution 170 00:03:40,789 --> 00:03:40,799 conducive a pressure distribution 171 00:03:40,799 --> 00:03:42,199 conducive a pressure distribution conducive to laminar flow you actually 172 00:03:42,199 --> 00:03:42,209 conducive to laminar flow you actually 173 00:03:42,209 --> 00:03:44,210 conducive to laminar flow you actually have to shape the airfoil properly and 174 00:03:44,210 --> 00:03:44,220 have to shape the airfoil properly and 175 00:03:44,220 --> 00:03:46,280 have to shape the airfoil properly and the shaping of that airfoil is part of 176 00:03:46,280 --> 00:03:46,290 the shaping of that airfoil is part of 177 00:03:46,290 --> 00:03:48,080 the shaping of that airfoil is part of the art and that's of learning how to 178 00:03:48,080 --> 00:03:48,090 the art and that's of learning how to 179 00:03:48,090 --> 00:03:50,830 the art and that's of learning how to how to make supersonic laminar flow work 180 00:03:50,830 --> 00:03:50,840 how to make supersonic laminar flow work 181 00:03:50,840 --> 00:03:53,210 how to make supersonic laminar flow work and it turns out that it needs some 182 00:03:53,210 --> 00:03:53,220 and it turns out that it needs some 183 00:03:53,220 --> 00:03:54,140 and it turns out that it needs some augmentation 184 00:03:54,140 --> 00:03:54,150 augmentation 185 00:03:54,150 --> 00:03:57,080 augmentation subsonic laminar flow can occur does 186 00:03:57,080 --> 00:03:57,090 subsonic laminar flow can occur does 187 00:03:57,090 --> 00:04:00,619 subsonic laminar flow can occur does occur easily relatively easily in the 188 00:04:00,619 --> 00:04:00,629 occur easily relatively easily in the 189 00:04:00,629 --> 00:04:02,300 occur easily relatively easily in the natural state you can actually maintain 190 00:04:02,300 --> 00:04:02,310 natural state you can actually maintain 191 00:04:02,310 --> 00:04:04,610 natural state you can actually maintain subsonic laminar flow back to fairly 192 00:04:04,610 --> 00:04:04,620 subsonic laminar flow back to fairly 193 00:04:04,620 --> 00:04:06,949 subsonic laminar flow back to fairly high percentage percentage quartz 35 40 194 00:04:06,949 --> 00:04:06,959 high percentage percentage quartz 35 40 195 00:04:06,959 --> 00:04:08,750 high percentage percentage quartz 35 40 percent quart they've been a number of 196 00:04:08,750 --> 00:04:08,760 percent quart they've been a number of 197 00:04:08,760 --> 00:04:10,220 percent quart they've been a number of experiments where we've done that flight 198 00:04:10,220 --> 00:04:10,230 experiments where we've done that flight 199 00:04:10,230 --> 00:04:11,390 experiments where we've done that flight experiments where we've done that and 200 00:04:11,390 --> 00:04:11,400 experiments where we've done that and 201 00:04:11,400 --> 00:04:13,520 experiments where we've done that and they've been you know Windtunnel 202 00:04:13,520 --> 00:04:13,530 they've been you know Windtunnel 203 00:04:13,530 --> 00:04:16,060 they've been you know Windtunnel experiments with them supersonically 204 00:04:16,060 --> 00:04:16,070 experiments with them supersonically 205 00:04:16,070 --> 00:04:18,469 experiments with them supersonically there hasn't been very much research in 206 00:04:18,469 --> 00:04:18,479 there hasn't been very much research in 207 00:04:18,479 --> 00:04:20,180 there hasn't been very much research in it it's we know that we can get laminar 208 00:04:20,180 --> 00:04:20,190 it it's we know that we can get laminar 209 00:04:20,190 --> 00:04:23,870 it it's we know that we can get laminar flow to you know an inch or so back now 210 00:04:23,870 --> 00:04:23,880 flow to you know an inch or so back now 211 00:04:23,880 --> 00:04:25,370 flow to you know an inch or so back now we're trying to maintain it further aft 212 00:04:25,370 --> 00:04:25,380 we're trying to maintain it further aft 213 00:04:25,380 --> 00:04:26,930 we're trying to maintain it further aft and in order to maintain the laminar 214 00:04:26,930 --> 00:04:26,940 and in order to maintain the laminar 215 00:04:26,940 --> 00:04:29,029 and in order to maintain the laminar flow further aft we have to come up with 216 00:04:29,029 --> 00:04:29,039 flow further aft we have to come up with 217 00:04:29,039 --> 00:04:30,920 flow further aft we have to come up with some method of augmentation and that's 218 00:04:30,920 --> 00:04:30,930 some method of augmentation and that's 219 00:04:30,930 --> 00:04:33,650 some method of augmentation and that's why we're using suction to actually pull 220 00:04:33,650 --> 00:04:33,660 why we're using suction to actually pull 221 00:04:33,660 --> 00:04:35,420 why we're using suction to actually pull the boundary layer in essence pull the 222 00:04:35,420 --> 00:04:35,430 the boundary layer in essence pull the 223 00:04:35,430 --> 00:04:37,550 the boundary layer in essence pull the boundary layer back down andrey laminar 224 00:04:37,550 --> 00:04:37,560 boundary layer back down andrey laminar 225 00:04:37,560 --> 00:04:39,140 boundary layer back down andrey laminar eyes the boundary layer and hopefully we 226 00:04:39,140 --> 00:04:39,150 eyes the boundary layer and hopefully we 227 00:04:39,150 --> 00:04:42,469 eyes the boundary layer and hopefully we can maintain a pressure distribution by 228 00:04:42,469 --> 00:04:42,479 can maintain a pressure distribution by 229 00:04:42,479 --> 00:04:45,409 can maintain a pressure distribution by augmenting with suction to keep laminar 230 00:04:45,409 --> 00:04:45,419 augmenting with suction to keep laminar 231 00:04:45,419 --> 00:04:46,939 augmenting with suction to keep laminar flow extending further and further aft 232 00:04:46,939 --> 00:04:46,949 flow extending further and further aft 233 00:04:46,949 --> 00:04:49,939 flow extending further and further aft along a wing surface and obviously if 234 00:04:49,939 --> 00:04:49,949 along a wing surface and obviously if 235 00:04:49,949 --> 00:04:52,040 along a wing surface and obviously if you maintain laminar flow for a larger 236 00:04:52,040 --> 00:04:52,050 you maintain laminar flow for a larger 237 00:04:52,050 --> 00:04:54,290 you maintain laminar flow for a larger distance you can reduce the drag of an 238 00:04:54,290 --> 00:04:54,300 distance you can reduce the drag of an 239 00:04:54,300 --> 00:04:56,060 distance you can reduce the drag of an airfoil if you can reduce the drag you 240 00:04:56,060 --> 00:04:56,070 airfoil if you can reduce the drag you 241 00:04:56,070 --> 00:04:57,860 airfoil if you can reduce the drag you can increase your fuel efficiency if you 242 00:04:57,860 --> 00:04:57,870 can increase your fuel efficiency if you 243 00:04:57,870 --> 00:04:59,600 can increase your fuel efficiency if you can increase your fuel efficiency you 244 00:04:59,600 --> 00:04:59,610 can increase your fuel efficiency you 245 00:04:59,610 --> 00:05:01,540 can increase your fuel efficiency you can increase your payload capability and 246 00:05:01,540 --> 00:05:01,550 can increase your payload capability and 247 00:05:01,550 --> 00:05:03,770 can increase your payload capability and you know it's just a whole raft of 248 00:05:03,770 --> 00:05:03,780 you know it's just a whole raft of 249 00:05:03,780 --> 00:05:05,060 you know it's just a whole raft of things that come out of being able to 250 00:05:05,060 --> 00:05:05,070 things that come out of being able to 251 00:05:05,070 --> 00:05:20,659 things that come out of being able to maintain laminar flow indirectly yes 252 00:05:20,659 --> 00:05:20,669 maintain laminar flow indirectly yes 253 00:05:20,669 --> 00:05:22,820 maintain laminar flow indirectly yes what we have done thus far with one of 254 00:05:22,820 --> 00:05:22,830 what we have done thus far with one of 255 00:05:22,830 --> 00:05:24,920 what we have done thus far with one of the f-16xl number one which was a 256 00:05:24,920 --> 00:05:24,930 the f-16xl number one which was a 257 00:05:24,930 --> 00:05:26,750 the f-16xl number one which was a cooperative experiment with Rockwell 258 00:05:26,750 --> 00:05:26,760 cooperative experiment with Rockwell 259 00:05:26,760 --> 00:05:28,969 cooperative experiment with Rockwell International North American aircraft 260 00:05:28,969 --> 00:05:28,979 International North American aircraft 261 00:05:28,979 --> 00:05:31,790 International North American aircraft rockwell and nasa langley and nasa 262 00:05:31,790 --> 00:05:31,800 rockwell and nasa langley and nasa 263 00:05:31,800 --> 00:05:35,480 rockwell and nasa langley and nasa dryden onto a limited extent actually 264 00:05:35,480 --> 00:05:35,490 dryden onto a limited extent actually 265 00:05:35,490 --> 00:05:37,820 dryden onto a limited extent actually NASA Ames was also involved in some of 266 00:05:37,820 --> 00:05:37,830 NASA Ames was also involved in some of 267 00:05:37,830 --> 00:05:39,200 NASA Ames was also involved in some of the computational work that went along 268 00:05:39,200 --> 00:05:39,210 the computational work that went along 269 00:05:39,210 --> 00:05:42,800 the computational work that went along with this we have demonstrated that you 270 00:05:42,800 --> 00:05:42,810 with this we have demonstrated that you 271 00:05:42,810 --> 00:05:45,140 with this we have demonstrated that you can maintain laminar flow back to 272 00:05:45,140 --> 00:05:45,150 can maintain laminar flow back to 273 00:05:45,150 --> 00:05:47,270 can maintain laminar flow back to roughly 25 percent coordinates under 274 00:05:47,270 --> 00:05:47,280 roughly 25 percent coordinates under 275 00:05:47,280 --> 00:05:50,060 roughly 25 percent coordinates under certain conditions the next experiment 276 00:05:50,060 --> 00:05:50,070 certain conditions the next experiment 277 00:05:50,070 --> 00:05:51,589 certain conditions the next experiment that we planned for the second airplane 278 00:05:51,589 --> 00:05:51,599 that we planned for the second airplane 279 00:05:51,599 --> 00:05:53,659 that we planned for the second airplane is to maintain laminar flow further aft 280 00:05:53,659 --> 00:05:53,669 is to maintain laminar flow further aft 281 00:05:53,669 --> 00:05:56,719 is to maintain laminar flow further aft back as far as 50 to 60 percent cord so 282 00:05:56,719 --> 00:05:56,729 back as far as 50 to 60 percent cord so 283 00:05:56,729 --> 00:05:59,180 back as far as 50 to 60 percent cord so yes we are doing it stepwise the first 284 00:05:59,180 --> 00:05:59,190 yes we are doing it stepwise the first 285 00:05:59,190 --> 00:06:01,129 yes we are doing it stepwise the first experiment showed us that it was in fact 286 00:06:01,129 --> 00:06:01,139 experiment showed us that it was in fact 287 00:06:01,139 --> 00:06:03,950 experiment showed us that it was in fact achievable and in fact it might be a 288 00:06:03,950 --> 00:06:03,960 achievable and in fact it might be a 289 00:06:03,960 --> 00:06:06,159 achievable and in fact it might be a little easier in certain areas to do 290 00:06:06,159 --> 00:06:06,169 little easier in certain areas to do 291 00:06:06,169 --> 00:06:09,409 little easier in certain areas to do than we anticipated the real world tends 292 00:06:09,409 --> 00:06:09,419 than we anticipated the real world tends 293 00:06:09,419 --> 00:06:10,730 than we anticipated the real world tends to be a little bit more forgiving it 294 00:06:10,730 --> 00:06:10,740 to be a little bit more forgiving it 295 00:06:10,740 --> 00:06:11,990 to be a little bit more forgiving it appears you know from a flight 296 00:06:11,990 --> 00:06:12,000 appears you know from a flight 297 00:06:12,000 --> 00:06:13,339 appears you know from a flight perspective the real world is more 298 00:06:13,339 --> 00:06:13,349 perspective the real world is more 299 00:06:13,349 --> 00:06:15,350 perspective the real world is more forgiving than the computational or the 300 00:06:15,350 --> 00:06:15,360 forgiving than the computational or the 301 00:06:15,360 --> 00:06:19,430 forgiving than the computational or the theoretical world says it should be but 302 00:06:19,430 --> 00:06:19,440 theoretical world says it should be but 303 00:06:19,440 --> 00:06:20,810 theoretical world says it should be but we haven't gotten enough of an 304 00:06:20,810 --> 00:06:20,820 we haven't gotten enough of an 305 00:06:20,820 --> 00:06:23,180 we haven't gotten enough of an understanding as to exactly why we're 306 00:06:23,180 --> 00:06:23,190 understanding as to exactly why we're 307 00:06:23,190 --> 00:06:25,550 understanding as to exactly why we're able to do what we're doing we know we 308 00:06:25,550 --> 00:06:25,560 able to do what we're doing we know we 309 00:06:25,560 --> 00:06:27,170 able to do what we're doing we know we can do it now we have to try to figure 310 00:06:27,170 --> 00:06:27,180 can do it now we have to try to figure 311 00:06:27,180 --> 00:06:28,790 can do it now we have to try to figure out exactly what is the phenomenon that 312 00:06:28,790 --> 00:06:28,800 out exactly what is the phenomenon that 313 00:06:28,800 --> 00:06:32,480 out exactly what is the phenomenon that we're actually able to to control to 314 00:06:32,480 --> 00:06:32,490 we're actually able to to control to 315 00:06:32,490 --> 00:06:34,670 we're actually able to to control to make us get laminar flow to 25% cord 316 00:06:34,670 --> 00:06:34,680 make us get laminar flow to 25% cord 317 00:06:34,680 --> 00:06:36,980 make us get laminar flow to 25% cord meanwhile we want to extend that yes 318 00:06:36,980 --> 00:06:36,990 meanwhile we want to extend that yes 319 00:06:36,990 --> 00:06:39,350 meanwhile we want to extend that yes back to 50 or 60% cord which is a big 320 00:06:39,350 --> 00:06:39,360 back to 50 or 60% cord which is a big 321 00:06:39,360 --> 00:06:42,440 back to 50 or 60% cord which is a big driver in the design process for the 322 00:06:42,440 --> 00:06:42,450 driver in the design process for the 323 00:06:42,450 --> 00:06:44,060 driver in the design process for the high-speed civil transport airplane if 324 00:06:44,060 --> 00:06:44,070 high-speed civil transport airplane if 325 00:06:44,070 --> 00:06:45,500 high-speed civil transport airplane if we can achieve when I'm going to flow 326 00:06:45,500 --> 00:06:45,510 we can achieve when I'm going to flow 327 00:06:45,510 --> 00:06:47,270 we can achieve when I'm going to flow that far back we have actually 328 00:06:47,270 --> 00:06:47,280 that far back we have actually 329 00:06:47,280 --> 00:06:49,459 that far back we have actually correlated unit Reynolds numbers to a 330 00:06:49,459 --> 00:06:49,469 correlated unit Reynolds numbers to a 331 00:06:49,469 --> 00:06:52,250 correlated unit Reynolds numbers to a large enough number that the theoretical 332 00:06:52,250 --> 00:06:52,260 large enough number that the theoretical 333 00:06:52,260 --> 00:06:54,649 large enough number that the theoretical people and the designers for the 334 00:06:54,649 --> 00:06:54,659 people and the designers for the 335 00:06:54,659 --> 00:06:56,480 people and the designers for the high-speed civil transport have a lot of 336 00:06:56,480 --> 00:06:56,490 high-speed civil transport have a lot of 337 00:06:56,490 --> 00:06:58,490 high-speed civil transport have a lot of confidence that when they scale this up 338 00:06:58,490 --> 00:06:58,500 confidence that when they scale this up 339 00:06:58,500 --> 00:07:01,700 confidence that when they scale this up to the full size vehicle the scaling 340 00:07:01,700 --> 00:07:01,710 to the full size vehicle the scaling 341 00:07:01,710 --> 00:07:04,730 to the full size vehicle the scaling will actually be fairly accurate but on 342 00:07:04,730 --> 00:07:04,740 will actually be fairly accurate but on 343 00:07:04,740 --> 00:07:06,709 will actually be fairly accurate but on a high-speed civil transport they may 344 00:07:06,709 --> 00:07:06,719 a high-speed civil transport they may 345 00:07:06,719 --> 00:07:08,570 a high-speed civil transport they may not have laminar flow back to 50 or 60 346 00:07:08,570 --> 00:07:08,580 not have laminar flow back to 50 or 60 347 00:07:08,580 --> 00:07:10,730 not have laminar flow back to 50 or 60 percent cord but if we can achieve it to 348 00:07:10,730 --> 00:07:10,740 percent cord but if we can achieve it to 349 00:07:10,740 --> 00:07:12,680 percent cord but if we can achieve it to 50 to 60 percent cord now we know we 350 00:07:12,680 --> 00:07:12,690 50 to 60 percent cord now we know we 351 00:07:12,690 --> 00:07:14,330 50 to 60 percent cord now we know we understand the phenomenon well enough to 352 00:07:14,330 --> 00:07:14,340 understand the phenomenon well enough to 353 00:07:14,340 --> 00:07:15,980 understand the phenomenon well enough to be able to use it to our advantage on a 354 00:07:15,980 --> 00:07:15,990 be able to use it to our advantage on a 355 00:07:15,990 --> 00:07:23,209 be able to use it to our advantage on a high-speed civil transport primary 356 00:07:23,209 --> 00:07:23,219 high-speed civil transport primary 357 00:07:23,219 --> 00:07:24,769 high-speed civil transport primary driver is that it has a configuration 358 00:07:24,769 --> 00:07:24,779 driver is that it has a configuration 359 00:07:24,779 --> 00:07:28,580 driver is that it has a configuration that is close to the configuration that 360 00:07:28,580 --> 00:07:28,590 that is close to the configuration that 361 00:07:28,590 --> 00:07:31,070 that is close to the configuration that the high-speed civil transport is right 362 00:07:31,070 --> 00:07:31,080 the high-speed civil transport is right 363 00:07:31,080 --> 00:07:32,899 the high-speed civil transport is right now on the on the table it looks like 364 00:07:32,899 --> 00:07:32,909 now on the on the table it looks like 365 00:07:32,909 --> 00:07:34,370 now on the on the table it looks like it's going to look like it's a very 366 00:07:34,370 --> 00:07:34,380 it's going to look like it's a very 367 00:07:34,380 --> 00:07:36,920 it's going to look like it's a very small airplane but it has a 70 degree 368 00:07:36,920 --> 00:07:36,930 small airplane but it has a 70 degree 369 00:07:36,930 --> 00:07:39,110 small airplane but it has a 70 degree swept wing and the high-speed civil 370 00:07:39,110 --> 00:07:39,120 swept wing and the high-speed civil 371 00:07:39,120 --> 00:07:41,510 swept wing and the high-speed civil transport designs right now appear that 372 00:07:41,510 --> 00:07:41,520 transport designs right now appear that 373 00:07:41,520 --> 00:07:43,070 transport designs right now appear that the wing is going to be roughly a 70 374 00:07:43,070 --> 00:07:43,080 the wing is going to be roughly a 70 375 00:07:43,080 --> 00:07:46,550 the wing is going to be roughly a 70 degree sweep the cord is not long enough 376 00:07:46,550 --> 00:07:46,560 degree sweep the cord is not long enough 377 00:07:46,560 --> 00:07:48,290 degree sweep the cord is not long enough it's but it was an airplane that was 378 00:07:48,290 --> 00:07:48,300 it's but it was an airplane that was 379 00:07:48,300 --> 00:07:51,469 it's but it was an airplane that was available with the right sweep angle for 380 00:07:51,469 --> 00:07:51,479 available with the right sweep angle for 381 00:07:51,479 --> 00:07:53,450 available with the right sweep angle for a test section and so that appeared to 382 00:07:53,450 --> 00:07:53,460 a test section and so that appeared to 383 00:07:53,460 --> 00:07:54,589 a test section and so that appeared to be the right place to start 384 00:07:54,589 --> 00:07:54,599 be the right place to start 385 00:07:54,599 --> 00:07:56,450 be the right place to start it's the only one of the few airplanes 386 00:07:56,450 --> 00:07:56,460 it's the only one of the few airplanes 387 00:07:56,460 --> 00:07:58,040 it's the only one of the few airplanes that are available right now to do that 388 00:07:58,040 --> 00:07:58,050 that are available right now to do that 389 00:07:58,050 --> 00:07:59,570 that are available right now to do that type of work and that's the other reason 390 00:07:59,570 --> 00:07:59,580 type of work and that's the other reason 391 00:07:59,580 --> 00:08:01,070 type of work and that's the other reason why the airplane was selected it was 392 00:08:01,070 --> 00:08:01,080 why the airplane was selected it was 393 00:08:01,080 --> 00:08:03,950 why the airplane was selected it was actually available back in 85 the Air 394 00:08:03,950 --> 00:08:03,960 actually available back in 85 the Air 395 00:08:03,960 --> 00:08:06,019 actually available back in 85 the Air Force and General Dynamics parked the 396 00:08:06,019 --> 00:08:06,029 Force and General Dynamics parked the 397 00:08:06,029 --> 00:08:07,399 Force and General Dynamics parked the airplanes and said they had no more use 398 00:08:07,399 --> 00:08:07,409 airplanes and said they had no more use 399 00:08:07,409 --> 00:08:11,270 airplanes and said they had no more use for the airplane and in 88 NASA thought 400 00:08:11,270 --> 00:08:11,280 for the airplane and in 88 NASA thought 401 00:08:11,280 --> 00:08:12,650 for the airplane and in 88 NASA thought that they could use an airplane and 402 00:08:12,650 --> 00:08:12,660 that they could use an airplane and 403 00:08:12,660 --> 00:08:14,029 that they could use an airplane and meanwhile the Air Force was looking for 404 00:08:14,029 --> 00:08:14,039 meanwhile the Air Force was looking for 405 00:08:14,039 --> 00:08:15,350 meanwhile the Air Force was looking for somebody to either take it off their 406 00:08:15,350 --> 00:08:15,360 somebody to either take it off their 407 00:08:15,360 --> 00:08:18,619 somebody to either take it off their hands or to or the Air Force was going 408 00:08:18,619 --> 00:08:18,629 hands or to or the Air Force was going 409 00:08:18,629 --> 00:08:19,080 hands or to or the Air Force was going to destroy 410 00:08:19,080 --> 00:08:19,090 to destroy 411 00:08:19,090 --> 00:08:20,939 to destroy the airplane so we said we've got to use 412 00:08:20,939 --> 00:08:20,949 the airplane so we said we've got to use 413 00:08:20,949 --> 00:08:23,430 the airplane so we said we've got to use four we'd like to have the airplane the 414 00:08:23,430 --> 00:08:23,440 four we'd like to have the airplane the 415 00:08:23,440 --> 00:08:24,750 four we'd like to have the airplane the airplanes are actually loaned to us they 416 00:08:24,750 --> 00:08:24,760 airplanes are actually loaned to us they 417 00:08:24,760 --> 00:08:26,310 airplanes are actually loaned to us they don't belong to NASA they belong to the 418 00:08:26,310 --> 00:08:26,320 don't belong to NASA they belong to the 419 00:08:26,320 --> 00:08:27,570 don't belong to NASA they belong to the Air Force and they're just on loan to 420 00:08:27,570 --> 00:08:27,580 Air Force and they're just on loan to 421 00:08:27,580 --> 00:08:29,490 Air Force and they're just on loan to the to NASA for the duration of the 422 00:08:29,490 --> 00:08:29,500 the to NASA for the duration of the 423 00:08:29,500 --> 00:08:37,260 the to NASA for the duration of the flight experiment well we actually 424 00:08:37,260 --> 00:08:37,270 flight experiment well we actually 425 00:08:37,270 --> 00:08:40,380 flight experiment well we actually collect on the order of 250 to 300 426 00:08:40,380 --> 00:08:40,390 collect on the order of 250 to 300 427 00:08:40,390 --> 00:08:42,540 collect on the order of 250 to 300 pieces of data telemetry to the ground 428 00:08:42,540 --> 00:08:42,550 pieces of data telemetry to the ground 429 00:08:42,550 --> 00:08:45,210 pieces of data telemetry to the ground we display to our engineers somewhere in 430 00:08:45,210 --> 00:08:45,220 we display to our engineers somewhere in 431 00:08:45,220 --> 00:08:46,940 we display to our engineers somewhere in the order of about a hundred and fifty 432 00:08:46,940 --> 00:08:46,950 the order of about a hundred and fifty 433 00:08:46,950 --> 00:08:50,370 the order of about a hundred and fifty among the parameters were displaying to 434 00:08:50,370 --> 00:08:50,380 among the parameters were displaying to 435 00:08:50,380 --> 00:08:52,820 among the parameters were displaying to our engineers or the pressures 436 00:08:52,820 --> 00:08:52,830 our engineers or the pressures 437 00:08:52,830 --> 00:08:54,570 our engineers or the pressures coefficients of pressure it's actually 438 00:08:54,570 --> 00:08:54,580 coefficients of pressure it's actually 439 00:08:54,580 --> 00:08:56,250 coefficients of pressure it's actually the pressure is measured and then we 440 00:08:56,250 --> 00:08:56,260 the pressure is measured and then we 441 00:08:56,260 --> 00:08:58,620 the pressure is measured and then we went into a computer to display in a 442 00:08:58,620 --> 00:08:58,630 went into a computer to display in a 443 00:08:58,630 --> 00:09:01,110 went into a computer to display in a pressure distribution format what the 444 00:09:01,110 --> 00:09:01,120 pressure distribution format what the 445 00:09:01,120 --> 00:09:03,329 pressure distribution format what the pressure distribution looks like we also 446 00:09:03,329 --> 00:09:03,339 pressure distribution looks like we also 447 00:09:03,339 --> 00:09:07,070 pressure distribution looks like we also measure and display to our engineers 448 00:09:07,070 --> 00:09:07,080 measure and display to our engineers 449 00:09:07,080 --> 00:09:09,630 measure and display to our engineers whether the flow is laminar or turbulent 450 00:09:09,630 --> 00:09:09,640 whether the flow is laminar or turbulent 451 00:09:09,640 --> 00:09:11,640 whether the flow is laminar or turbulent when we use a thing called a device 452 00:09:11,640 --> 00:09:11,650 when we use a thing called a device 453 00:09:11,650 --> 00:09:13,740 when we use a thing called a device called a hot film anemometer or hot film 454 00:09:13,740 --> 00:09:13,750 called a hot film anemometer or hot film 455 00:09:13,750 --> 00:09:17,340 called a hot film anemometer or hot film sensor which in essence is a piece of a 456 00:09:17,340 --> 00:09:17,350 sensor which in essence is a piece of a 457 00:09:17,350 --> 00:09:21,600 sensor which in essence is a piece of a strain gauge bridge and by the way it's 458 00:09:21,600 --> 00:09:21,610 strain gauge bridge and by the way it's 459 00:09:21,610 --> 00:09:24,000 strain gauge bridge and by the way it's manipulated and can condition the signal 460 00:09:24,000 --> 00:09:24,010 manipulated and can condition the signal 461 00:09:24,010 --> 00:09:25,590 manipulated and can condition the signal is conditioned we can actually tell 462 00:09:25,590 --> 00:09:25,600 is conditioned we can actually tell 463 00:09:25,600 --> 00:09:26,850 is conditioned we can actually tell whether we have laminar or turbulent 464 00:09:26,850 --> 00:09:26,860 whether we have laminar or turbulent 465 00:09:26,860 --> 00:09:30,360 whether we have laminar or turbulent flow at a specific discreet location 466 00:09:30,360 --> 00:09:30,370 flow at a specific discreet location 467 00:09:30,370 --> 00:09:32,310 flow at a specific discreet location along the wing where these things are 468 00:09:32,310 --> 00:09:32,320 along the wing where these things are 469 00:09:32,320 --> 00:09:35,160 along the wing where these things are located those are the two primary pieces 470 00:09:35,160 --> 00:09:35,170 located those are the two primary pieces 471 00:09:35,170 --> 00:09:37,320 located those are the two primary pieces of information that we collect we also 472 00:09:37,320 --> 00:09:37,330 of information that we collect we also 473 00:09:37,330 --> 00:09:40,290 of information that we collect we also collect data on the suction levels how 474 00:09:40,290 --> 00:09:40,300 collect data on the suction levels how 475 00:09:40,300 --> 00:09:42,750 collect data on the suction levels how much suction are we doesn't require to 476 00:09:42,750 --> 00:09:42,760 much suction are we doesn't require to 477 00:09:42,760 --> 00:09:44,970 much suction are we doesn't require to maintain the laminar flow at those in 478 00:09:44,970 --> 00:09:44,980 maintain the laminar flow at those in 479 00:09:44,980 --> 00:09:47,160 maintain the laminar flow at those in under those various conditions and of 480 00:09:47,160 --> 00:09:47,170 under those various conditions and of 481 00:09:47,170 --> 00:09:48,570 under those various conditions and of course the conditions themselves are 482 00:09:48,570 --> 00:09:48,580 course the conditions themselves are 483 00:09:48,580 --> 00:09:51,060 course the conditions themselves are recorded whether what our mock mock 484 00:09:51,060 --> 00:09:51,070 recorded whether what our mock mock 485 00:09:51,070 --> 00:09:54,180 recorded whether what our mock mock altitude airspeed angle-of-attack angle 486 00:09:54,180 --> 00:09:54,190 altitude airspeed angle-of-attack angle 487 00:09:54,190 --> 00:09:57,180 altitude airspeed angle-of-attack angle of sideslip all of those are recorded 488 00:09:57,180 --> 00:09:57,190 of sideslip all of those are recorded 489 00:09:57,190 --> 00:09:59,070 of sideslip all of those are recorded and telemetry to the ground so that the 490 00:09:59,070 --> 00:09:59,080 and telemetry to the ground so that the 491 00:09:59,080 --> 00:10:00,900 and telemetry to the ground so that the researchers can tell whether or not we 492 00:10:00,900 --> 00:10:00,910 researchers can tell whether or not we 493 00:10:00,910 --> 00:10:03,420 researchers can tell whether or not we are on the conditions that we need to 494 00:10:03,420 --> 00:10:03,430 are on the conditions that we need to 495 00:10:03,430 --> 00:10:05,220 are on the conditions that we need to examine whether or not laminar flow 496 00:10:05,220 --> 00:10:05,230 examine whether or not laminar flow 497 00:10:05,230 --> 00:10:15,290 examine whether or not laminar flow occurs then 498 00:10:15,290 --> 00:10:15,300 499 00:10:15,300 --> 00:10:17,820 first three or four percent granulation 500 00:10:17,820 --> 00:10:17,830 first three or four percent granulation 501 00:10:17,830 --> 00:10:22,530 first three or four percent granulation what do you learn from that helps most 502 00:10:22,530 --> 00:10:22,540 what do you learn from that helps most 503 00:10:22,540 --> 00:10:25,890 what do you learn from that helps most of what they have done thus far they're 504 00:10:25,890 --> 00:10:25,900 of what they have done thus far they're 505 00:10:25,900 --> 00:10:27,870 of what they have done thus far they're they're the beginning of the experiment 506 00:10:27,870 --> 00:10:27,880 they're the beginning of the experiment 507 00:10:27,880 --> 00:10:29,370 they're the beginning of the experiment they're the ones that say well if you 508 00:10:29,370 --> 00:10:29,380 they're the ones that say well if you 509 00:10:29,380 --> 00:10:31,710 they're the ones that say well if you can shape your airfoil this way if you 510 00:10:31,710 --> 00:10:31,720 can shape your airfoil this way if you 511 00:10:31,720 --> 00:10:34,020 can shape your airfoil this way if you can if you can build a contour if you 512 00:10:34,020 --> 00:10:34,030 can if you can build a contour if you 513 00:10:34,030 --> 00:10:35,910 can if you can build a contour if you can build an experiment that looks like 514 00:10:35,910 --> 00:10:35,920 can build an experiment that looks like 515 00:10:35,920 --> 00:10:38,940 can build an experiment that looks like this you are most likely going to be 516 00:10:38,940 --> 00:10:38,950 this you are most likely going to be 517 00:10:38,950 --> 00:10:40,530 this you are most likely going to be able to get through the hardest part of 518 00:10:40,530 --> 00:10:40,540 able to get through the hardest part of 519 00:10:40,540 --> 00:10:41,820 able to get through the hardest part of the region the hardest part of the 520 00:10:41,820 --> 00:10:41,830 the region the hardest part of the 521 00:10:41,830 --> 00:10:43,410 the region the hardest part of the experiment which is to get the leading 522 00:10:43,410 --> 00:10:43,420 experiment which is to get the leading 523 00:10:43,420 --> 00:10:45,750 experiment which is to get the leading edge to be laminar if you can maintain 524 00:10:45,750 --> 00:10:45,760 edge to be laminar if you can maintain 525 00:10:45,760 --> 00:10:47,610 edge to be laminar if you can maintain laminar at the leading edge the rest of 526 00:10:47,610 --> 00:10:47,620 laminar at the leading edge the rest of 527 00:10:47,620 --> 00:10:49,140 laminar at the leading edge the rest of it will probably fall out you may have 528 00:10:49,140 --> 00:10:49,150 it will probably fall out you may have 529 00:10:49,150 --> 00:10:51,510 it will probably fall out you may have to manipulate your experiment just a 530 00:10:51,510 --> 00:10:51,520 to manipulate your experiment just a 531 00:10:51,520 --> 00:10:53,730 to manipulate your experiment just a little bit but the further are and will 532 00:10:53,730 --> 00:10:53,740 little bit but the further are and will 533 00:10:53,740 --> 00:10:56,910 little bit but the further are and will follow so what we really get out of them 534 00:10:56,910 --> 00:10:56,920 follow so what we really get out of them 535 00:10:56,920 --> 00:10:59,340 follow so what we really get out of them is verification of some of the theories 536 00:10:59,340 --> 00:10:59,350 is verification of some of the theories 537 00:10:59,350 --> 00:11:01,950 is verification of some of the theories that the design theories for our 538 00:11:01,950 --> 00:11:01,960 that the design theories for our 539 00:11:01,960 --> 00:11:05,310 that the design theories for our experiment so the design starts whether 540 00:11:05,310 --> 00:11:05,320 experiment so the design starts whether 541 00:11:05,320 --> 00:11:07,680 experiment so the design starts whether it's and a lot of times that is the 542 00:11:07,680 --> 00:11:07,690 it's and a lot of times that is the 543 00:11:07,690 --> 00:11:09,240 it's and a lot of times that is the computational fluid dynamics people 544 00:11:09,240 --> 00:11:09,250 computational fluid dynamics people 545 00:11:09,250 --> 00:11:10,710 computational fluid dynamics people start working on what they think is a 546 00:11:10,710 --> 00:11:10,720 start working on what they think is a 547 00:11:10,720 --> 00:11:14,010 start working on what they think is a good design then they might fly a small 548 00:11:14,010 --> 00:11:14,020 good design then they might fly a small 549 00:11:14,020 --> 00:11:17,010 good design then they might fly a small experiment in one of the tunnels and 550 00:11:17,010 --> 00:11:17,020 experiment in one of the tunnels and 551 00:11:17,020 --> 00:11:18,480 experiment in one of the tunnels and when they think they have something that 552 00:11:18,480 --> 00:11:18,490 when they think they have something that 553 00:11:18,490 --> 00:11:20,850 when they think they have something that really is does show promise then we'll 554 00:11:20,850 --> 00:11:20,860 really is does show promise then we'll 555 00:11:20,860 --> 00:11:22,890 really is does show promise then we'll scale it up to an airplane and do a 556 00:11:22,890 --> 00:11:22,900 scale it up to an airplane and do a 557 00:11:22,900 --> 00:11:24,180 scale it up to an airplane and do a flight experiment which will be the 558 00:11:24,180 --> 00:11:24,190 flight experiment which will be the 559 00:11:24,190 --> 00:11:26,280 flight experiment which will be the in-flight validation of what the wind 560 00:11:26,280 --> 00:11:26,290 in-flight validation of what the wind 561 00:11:26,290 --> 00:11:28,230 in-flight validation of what the wind tunnel said and what the computational 562 00:11:28,230 --> 00:11:28,240 tunnel said and what the computational 563 00:11:28,240 --> 00:11:30,840 tunnel said and what the computational fluid dynamics work said oftentimes we 564 00:11:30,840 --> 00:11:30,850 fluid dynamics work said oftentimes we 565 00:11:30,850 --> 00:11:33,690 fluid dynamics work said oftentimes we don't get to 100% correlation in there 566 00:11:33,690 --> 00:11:33,700 don't get to 100% correlation in there 567 00:11:33,700 --> 00:11:36,000 don't get to 100% correlation in there in the data what we get is is some 568 00:11:36,000 --> 00:11:36,010 in the data what we get is is some 569 00:11:36,010 --> 00:11:37,890 in the data what we get is is some differences in terms of what we get for 570 00:11:37,890 --> 00:11:37,900 differences in terms of what we get for 571 00:11:37,900 --> 00:11:40,500 differences in terms of what we get for real time our flight data and we take 572 00:11:40,500 --> 00:11:40,510 real time our flight data and we take 573 00:11:40,510 --> 00:11:43,170 real time our flight data and we take that turn it back into the computational 574 00:11:43,170 --> 00:11:43,180 that turn it back into the computational 575 00:11:43,180 --> 00:11:45,120 that turn it back into the computational fluid dynamics folks or to the wind 576 00:11:45,120 --> 00:11:45,130 fluid dynamics folks or to the wind 577 00:11:45,130 --> 00:11:46,650 fluid dynamics folks or to the wind tunnel people and say well our data 578 00:11:46,650 --> 00:11:46,660 tunnel people and say well our data 579 00:11:46,660 --> 00:11:49,140 tunnel people and say well our data shows this but our configuration looks 580 00:11:49,140 --> 00:11:49,150 shows this but our configuration looks 581 00:11:49,150 --> 00:11:51,600 shows this but our configuration looks like this why don't you run it again put 582 00:11:51,600 --> 00:11:51,610 like this why don't you run it again put 583 00:11:51,610 --> 00:11:52,920 like this why don't you run it again put it through your tunnel again or put it 584 00:11:52,920 --> 00:11:52,930 it through your tunnel again or put it 585 00:11:52,930 --> 00:11:54,720 it through your tunnel again or put it through your code and see whether or not 586 00:11:54,720 --> 00:11:54,730 through your code and see whether or not 587 00:11:54,730 --> 00:11:56,010 through your code and see whether or not you can figure out what the difference 588 00:11:56,010 --> 00:11:56,020 you can figure out what the difference 589 00:11:56,020 --> 00:11:57,540 you can figure out what the difference is between what we got and what you got 590 00:11:57,540 --> 00:11:57,550 is between what we got and what you got 591 00:11:57,550 --> 00:11:59,460 is between what we got and what you got in terms of results so there's not 592 00:11:59,460 --> 00:11:59,470 in terms of results so there's not 593 00:11:59,470 --> 00:12:01,470 in terms of results so there's not always 100% correlation but we use this 594 00:12:01,470 --> 00:12:01,480 always 100% correlation but we use this 595 00:12:01,480 --> 00:12:05,190 always 100% correlation but we use this as an iterative process often times they 596 00:12:05,190 --> 00:12:05,200 as an iterative process often times they 597 00:12:05,200 --> 00:12:06,810 as an iterative process often times they don't get the same answers we get and 598 00:12:06,810 --> 00:12:06,820 don't get the same answers we get and 599 00:12:06,820 --> 00:12:08,670 don't get the same answers we get and they're convinced that their part is 600 00:12:08,670 --> 00:12:08,680 they're convinced that their part is 601 00:12:08,680 --> 00:12:10,470 they're convinced that their part is exactly right so we have to go back and 602 00:12:10,470 --> 00:12:10,480 exactly right so we have to go back and 603 00:12:10,480 --> 00:12:12,150 exactly right so we have to go back and find out what it is and arcs our piece 604 00:12:12,150 --> 00:12:12,160 find out what it is and arcs our piece 605 00:12:12,160 --> 00:12:13,740 find out what it is and arcs our piece of the experiment that might be 606 00:12:13,740 --> 00:12:13,750 of the experiment that might be 607 00:12:13,750 --> 00:12:16,350 of the experiment that might be different so it's you know it takes a 608 00:12:16,350 --> 00:12:16,360 different so it's you know it takes a 609 00:12:16,360 --> 00:12:17,910 different so it's you know it takes a lot of communication a lot of talking 610 00:12:17,910 --> 00:12:17,920 lot of communication a lot of talking 611 00:12:17,920 --> 00:12:20,310 lot of communication a lot of talking between the computational fluid dynamics 612 00:12:20,310 --> 00:12:20,320 between the computational fluid dynamics 613 00:12:20,320 --> 00:12:21,900 between the computational fluid dynamics people and the wind tunnel people and 614 00:12:21,900 --> 00:12:21,910 people and the wind tunnel people and 615 00:12:21,910 --> 00:12:23,910 people and the wind tunnel people and the flight experiment people and the 616 00:12:23,910 --> 00:12:23,920 the flight experiment people and the 617 00:12:23,920 --> 00:12:24,690 the flight experiment people and the applications 618 00:12:24,690 --> 00:12:24,700 applications 619 00:12:24,700 --> 00:12:26,190 applications people and the instrumentation people 620 00:12:26,190 --> 00:12:26,200 people and the instrumentation people 621 00:12:26,200 --> 00:12:27,600 people and the instrumentation people everybody has to talk to everybody in 622 00:12:27,600 --> 00:12:27,610 everybody has to talk to everybody in 623 00:12:27,610 --> 00:12:28,800 everybody has to talk to everybody in order to make sure that we really are 624 00:12:28,800 --> 00:12:28,810 order to make sure that we really are 625 00:12:28,810 --> 00:12:30,630 order to make sure that we really are doing the experiment we all think we're 626 00:12:30,630 --> 00:12:30,640 doing the experiment we all think we're 627 00:12:30,640 --> 00:12:33,330 doing the experiment we all think we're doing and and we have had on occasion 628 00:12:33,330 --> 00:12:33,340 doing and and we have had on occasion 629 00:12:33,340 --> 00:12:35,040 doing and and we have had on occasion some differences of opinion in terms of 630 00:12:35,040 --> 00:12:35,050 some differences of opinion in terms of 631 00:12:35,050 --> 00:12:36,990 some differences of opinion in terms of what we are doing and what we think 632 00:12:36,990 --> 00:12:37,000 what we are doing and what we think 633 00:12:37,000 --> 00:12:38,370 what we are doing and what we think we're doing and what somebody else 634 00:12:38,370 --> 00:12:38,380 we're doing and what somebody else 635 00:12:38,380 --> 00:12:40,710 we're doing and what somebody else thinks for doing so it does it's a 636 00:12:40,710 --> 00:12:40,720 thinks for doing so it does it's a 637 00:12:40,720 --> 00:12:42,510 thinks for doing so it does it's a difficult process to keep iterating 638 00:12:42,510 --> 00:12:42,520 difficult process to keep iterating 639 00:12:42,520 --> 00:12:44,820 difficult process to keep iterating everybody's data until we get 640 00:12:44,820 --> 00:12:44,830 everybody's data until we get 641 00:12:44,830 --> 00:12:58,140 everybody's data until we get correlation their work is what is most 642 00:12:58,140 --> 00:12:58,150 correlation their work is what is most 643 00:12:58,150 --> 00:13:06,450 correlation their work is what is most important and what that's a positive 644 00:13:06,450 --> 00:13:06,460 important and what that's a positive 645 00:13:06,460 --> 00:13:08,030 important and what that's a positive thing because that person is very 646 00:13:08,030 --> 00:13:08,040 thing because that person is very 647 00:13:08,040 --> 00:13:09,750 thing because that person is very enthusiastic about what they're doing 648 00:13:09,750 --> 00:13:09,760 enthusiastic about what they're doing 649 00:13:09,760 --> 00:13:12,390 enthusiastic about what they're doing and that's where their heart is but what 650 00:13:12,390 --> 00:13:12,400 and that's where their heart is but what 651 00:13:12,400 --> 00:13:22,650 and that's where their heart is but what I see but it's really funny to talk to 652 00:13:22,650 --> 00:13:22,660 I see but it's really funny to talk to 653 00:13:22,660 --> 00:13:24,660 I see but it's really funny to talk to somebody do you know who Bernie Spencer 654 00:13:24,660 --> 00:13:24,670 somebody do you know who Bernie Spencer 655 00:13:24,670 --> 00:13:26,310 somebody do you know who Bernie Spencer in Spanish I know the name but I don't 656 00:13:26,310 --> 00:13:26,320 in Spanish I know the name but I don't 657 00:13:26,320 --> 00:13:27,000 in Spanish I know the name but I don't know him personally 658 00:13:27,000 --> 00:13:27,010 know him personally 659 00:13:27,010 --> 00:13:28,710 know him personally he's a wind tunnel guy he did a lot of 660 00:13:28,710 --> 00:13:28,720 he's a wind tunnel guy he did a lot of 661 00:13:28,720 --> 00:13:42,240 he's a wind tunnel guy he did a lot of testing to rephrase that Bernie we kick 662 00:13:42,240 --> 00:13:42,250 testing to rephrase that Bernie we kick 663 00:13:42,250 --> 00:13:46,680 testing to rephrase that Bernie we kick all we need anyway it's I mean it is 664 00:13:46,680 --> 00:13:46,690 all we need anyway it's I mean it is 665 00:13:46,690 --> 00:13:49,110 all we need anyway it's I mean it is that's a tough problem you know the and 666 00:13:49,110 --> 00:13:49,120 that's a tough problem you know the and 667 00:13:49,120 --> 00:13:50,820 that's a tough problem you know the and we have you know we have our growing 668 00:13:50,820 --> 00:13:50,830 we have you know we have our growing 669 00:13:50,830 --> 00:13:53,850 we have you know we have our growing pains trying to correlate a you know 670 00:13:53,850 --> 00:13:53,860 pains trying to correlate a you know 671 00:13:53,860 --> 00:13:56,490 pains trying to correlate a you know make a flight experiment add the most 672 00:13:56,490 --> 00:13:56,500 make a flight experiment add the most 673 00:13:56,500 --> 00:13:59,300 make a flight experiment add the most value to an overall program like this 674 00:13:59,300 --> 00:13:59,310 value to an overall program like this 675 00:13:59,310 --> 00:14:01,950 value to an overall program like this because everybody does have their empire 676 00:14:01,950 --> 00:14:01,960 because everybody does have their empire 677 00:14:01,960 --> 00:14:03,780 because everybody does have their empire if you will and everybody wants to make 678 00:14:03,780 --> 00:14:03,790 if you will and everybody wants to make 679 00:14:03,790 --> 00:14:05,430 if you will and everybody wants to make sure that their piece gets gets added 680 00:14:05,430 --> 00:14:05,440 sure that their piece gets gets added 681 00:14:05,440 --> 00:14:08,760 sure that their piece gets gets added into the equation why it is an important 682 00:14:08,760 --> 00:14:08,770 into the equation why it is an important 683 00:14:08,770 --> 00:14:11,600 into the equation why it is an important part of the validation process and 684 00:14:11,600 --> 00:14:11,610 part of the validation process and 685 00:14:11,610 --> 00:14:13,740 part of the validation process and especially when you're dealing with a 686 00:14:13,740 --> 00:14:13,750 especially when you're dealing with a 687 00:14:13,750 --> 00:14:16,860 especially when you're dealing with a phenomenon that we don't understand yet 688 00:14:16,860 --> 00:14:16,870 phenomenon that we don't understand yet 689 00:14:16,870 --> 00:14:19,830 phenomenon that we don't understand yet there are some kinds of technologies 690 00:14:19,830 --> 00:14:19,840 there are some kinds of technologies 691 00:14:19,840 --> 00:14:21,090 there are some kinds of technologies that can be done you know 692 00:14:21,090 --> 00:14:21,100 that can be done you know 693 00:14:21,100 --> 00:14:22,530 that can be done you know computationally or in the wind tunnels 694 00:14:22,530 --> 00:14:22,540 computationally or in the wind tunnels 695 00:14:22,540 --> 00:14:24,030 computationally or in the wind tunnels but I think we're in an area now where 696 00:14:24,030 --> 00:14:24,040 but I think we're in an area now where 697 00:14:24,040 --> 00:14:25,980 but I think we're in an area now where we don't know enough and we need some 698 00:14:25,980 --> 00:14:25,990 we don't know enough and we need some 699 00:14:25,990 --> 00:14:28,170 we don't know enough and we need some flight data to correlate with and I 700 00:14:28,170 --> 00:14:28,180 flight data to correlate with and I 701 00:14:28,180 --> 00:14:29,970 flight data to correlate with and I think overall the program does recognize 702 00:14:29,970 --> 00:14:29,980 think overall the program does recognize 703 00:14:29,980 --> 00:14:31,320 think overall the program does recognize that and everybody involved in the 704 00:14:31,320 --> 00:14:31,330 that and everybody involved in the 705 00:14:31,330 --> 00:14:33,240 that and everybody involved in the program recognizes that but flights also 706 00:14:33,240 --> 00:14:33,250 program recognizes that but flights also 707 00:14:33,250 --> 00:14:36,450 program recognizes that but flights also very expensive and that's that's a real 708 00:14:36,450 --> 00:14:36,460 very expensive and that's that's a real 709 00:14:36,460 --> 00:14:37,550 very expensive and that's that's a real drawback any time 710 00:14:37,550 --> 00:14:37,560 drawback any time 711 00:14:37,560 --> 00:14:38,750 drawback any time anybody looks at trying to do a flight 712 00:14:38,750 --> 00:14:38,760 anybody looks at trying to do a flight 713 00:14:38,760 --> 00:14:40,130 anybody looks at trying to do a flight experiment they say Who am I we're going 714 00:14:40,130 --> 00:14:40,140 experiment they say Who am I we're going 715 00:14:40,140 --> 00:14:42,170 experiment they say Who am I we're going to spend millions of dollars doing this 716 00:14:42,170 --> 00:14:42,180 to spend millions of dollars doing this 717 00:14:42,180 --> 00:14:43,610 to spend millions of dollars doing this flight experiment and we could do the 718 00:14:43,610 --> 00:14:43,620 flight experiment and we could do the 719 00:14:43,620 --> 00:14:45,680 flight experiment and we could do the same experiment in a wind tunnel or in a 720 00:14:45,680 --> 00:14:45,690 same experiment in a wind tunnel or in a 721 00:14:45,690 --> 00:14:47,540 same experiment in a wind tunnel or in a in the computational world for 722 00:14:47,540 --> 00:14:47,550 in the computational world for 723 00:14:47,550 --> 00:14:51,380 in the computational world for considerably less and convincing 724 00:14:51,380 --> 00:14:51,390 considerably less and convincing 725 00:14:51,390 --> 00:14:53,870 considerably less and convincing everybody that you still need the flight 726 00:14:53,870 --> 00:14:53,880 everybody that you still need the flight 727 00:14:53,880 --> 00:14:56,600 everybody that you still need the flight data is sometimes difficult you know so 728 00:14:56,600 --> 00:14:56,610 data is sometimes difficult you know so 729 00:14:56,610 --> 00:14:58,640 data is sometimes difficult you know so when you talk about your computational 730 00:14:58,640 --> 00:14:58,650 when you talk about your computational 731 00:14:58,650 --> 00:15:00,950 when you talk about your computational people or your wind tunnel people and 732 00:15:00,950 --> 00:15:00,960 people or your wind tunnel people and 733 00:15:00,960 --> 00:15:02,750 people or your wind tunnel people and you talk about your air applications 734 00:15:02,750 --> 00:15:02,760 you talk about your air applications 735 00:15:02,760 --> 00:15:04,269 you talk about your air applications maybe your flight applications people 736 00:15:04,269 --> 00:15:04,279 maybe your flight applications people 737 00:15:04,279 --> 00:15:06,530 maybe your flight applications people getting a meeting of the minds is the 738 00:15:06,530 --> 00:15:06,540 getting a meeting of the minds is the 739 00:15:06,540 --> 00:15:08,510 getting a meeting of the minds is the hardest thing you know getting everybody 740 00:15:08,510 --> 00:15:08,520 hardest thing you know getting everybody 741 00:15:08,520 --> 00:15:10,640 hardest thing you know getting everybody to say yes this is the very important 742 00:15:10,640 --> 00:15:10,650 to say yes this is the very important 743 00:15:10,650 --> 00:15:13,160 to say yes this is the very important thing for us to do is really difficult 744 00:15:13,160 --> 00:15:13,170 thing for us to do is really difficult 745 00:15:13,170 --> 00:15:16,160 thing for us to do is really difficult and it hasn't been flawless so far in 746 00:15:16,160 --> 00:15:16,170 and it hasn't been flawless so far in 747 00:15:16,170 --> 00:15:17,329 and it hasn't been flawless so far in this program although we're getting 748 00:15:17,329 --> 00:15:17,339 this program although we're getting 749 00:15:17,339 --> 00:15:19,160 this program although we're getting better we're definitely working hard 750 00:15:19,160 --> 00:15:19,170 better we're definitely working hard 751 00:15:19,170 --> 00:15:21,110 better we're definitely working hard harder to make sure we're all part of 752 00:15:21,110 --> 00:15:21,120 harder to make sure we're all part of 753 00:15:21,120 --> 00:15:22,640 harder to make sure we're all part of the big piece of the piece of the 754 00:15:22,640 --> 00:15:22,650 the big piece of the piece of the 755 00:15:22,650 --> 00:15:24,140 the big piece of the piece of the program and I think it's starting to 756 00:15:24,140 --> 00:15:24,150 program and I think it's starting to 757 00:15:24,150 --> 00:15:38,540 program and I think it's starting to show well we have we've collected 758 00:15:38,540 --> 00:15:38,550 show well we have we've collected 759 00:15:38,550 --> 00:15:41,030 show well we have we've collected sufficient amount of laminar flow or 760 00:15:41,030 --> 00:15:41,040 sufficient amount of laminar flow or 761 00:15:41,040 --> 00:15:44,140 sufficient amount of laminar flow or laminar turbulent transition data and a 762 00:15:44,140 --> 00:15:44,150 laminar turbulent transition data and a 763 00:15:44,150 --> 00:15:46,010 laminar turbulent transition data and a significant amount of pressure 764 00:15:46,010 --> 00:15:46,020 significant amount of pressure 765 00:15:46,020 --> 00:15:47,810 significant amount of pressure distribution data to be able to show 766 00:15:47,810 --> 00:15:47,820 distribution data to be able to show 767 00:15:47,820 --> 00:15:53,480 distribution data to be able to show that with minor anomalies we can we 768 00:15:53,480 --> 00:15:53,490 that with minor anomalies we can we 769 00:15:53,490 --> 00:15:55,700 that with minor anomalies we can we cannot we do understand how the pressure 770 00:15:55,700 --> 00:15:55,710 cannot we do understand how the pressure 771 00:15:55,710 --> 00:15:58,760 cannot we do understand how the pressure distribution is has been developed you 772 00:15:58,760 --> 00:15:58,770 distribution is has been developed you 773 00:15:58,770 --> 00:15:59,810 distribution is has been developed you know there are some things in the 774 00:15:59,810 --> 00:15:59,820 know there are some things in the 775 00:15:59,820 --> 00:16:00,740 know there are some things in the pressure distribution we don't 776 00:16:00,740 --> 00:16:00,750 pressure distribution we don't 777 00:16:00,750 --> 00:16:03,200 pressure distribution we don't understand but we're beginning to 778 00:16:03,200 --> 00:16:03,210 understand but we're beginning to 779 00:16:03,210 --> 00:16:04,310 understand but we're beginning to believe that some of that's our 780 00:16:04,310 --> 00:16:04,320 believe that some of that's our 781 00:16:04,320 --> 00:16:05,870 believe that some of that's our instrumentation measurement technique 782 00:16:05,870 --> 00:16:05,880 instrumentation measurement technique 783 00:16:05,880 --> 00:16:08,060 instrumentation measurement technique rather than it has anything to do with 784 00:16:08,060 --> 00:16:08,070 rather than it has anything to do with 785 00:16:08,070 --> 00:16:09,920 rather than it has anything to do with the phenomenon called supersonic laminar 786 00:16:09,920 --> 00:16:09,930 the phenomenon called supersonic laminar 787 00:16:09,930 --> 00:16:12,260 the phenomenon called supersonic laminar flow which is good I mean it's what it's 788 00:16:12,260 --> 00:16:12,270 flow which is good I mean it's what it's 789 00:16:12,270 --> 00:16:14,900 flow which is good I mean it's what it's done for us is it's it's improved our 790 00:16:14,900 --> 00:16:14,910 done for us is it's it's improved our 791 00:16:14,910 --> 00:16:16,640 done for us is it's it's improved our instrumentation technique capability as 792 00:16:16,640 --> 00:16:16,650 instrumentation technique capability as 793 00:16:16,650 --> 00:16:18,620 instrumentation technique capability as well which will make the next experiment 794 00:16:18,620 --> 00:16:18,630 well which will make the next experiment 795 00:16:18,630 --> 00:16:21,680 well which will make the next experiment a better experiment in transition where 796 00:16:21,680 --> 00:16:21,690 a better experiment in transition where 797 00:16:21,690 --> 00:16:24,500 a better experiment in transition where transition location occurs we have been 798 00:16:24,500 --> 00:16:24,510 transition location occurs we have been 799 00:16:24,510 --> 00:16:27,440 transition location occurs we have been able to show that the codes that have 800 00:16:27,440 --> 00:16:27,450 able to show that the codes that have 801 00:16:27,450 --> 00:16:29,960 able to show that the codes that have that developed that this airfoil shape 802 00:16:29,960 --> 00:16:29,970 that developed that this airfoil shape 803 00:16:29,970 --> 00:16:31,610 that developed that this airfoil shape was developed by are not a hundred 804 00:16:31,610 --> 00:16:31,620 was developed by are not a hundred 805 00:16:31,620 --> 00:16:33,230 was developed by are not a hundred percent representative of what really 806 00:16:33,230 --> 00:16:33,240 percent representative of what really 807 00:16:33,240 --> 00:16:35,030 percent representative of what really happens in the real world but they're 808 00:16:35,030 --> 00:16:35,040 happens in the real world but they're 809 00:16:35,040 --> 00:16:36,470 happens in the real world but they're close enough there's some things that 810 00:16:36,470 --> 00:16:36,480 close enough there's some things that 811 00:16:36,480 --> 00:16:38,510 close enough there's some things that some phenomenon that they didn't 812 00:16:38,510 --> 00:16:38,520 some phenomenon that they didn't 813 00:16:38,520 --> 00:16:41,230 some phenomenon that they didn't anticipate in the code development that 814 00:16:41,230 --> 00:16:41,240 anticipate in the code development that 815 00:16:41,240 --> 00:16:46,220 anticipate in the code development that need to be revisited it's on it's fair 816 00:16:46,220 --> 00:16:46,230 need to be revisited it's on it's fair 817 00:16:46,230 --> 00:16:48,110 need to be revisited it's on it's fair to say we did not predict the results we 818 00:16:48,110 --> 00:16:48,120 to say we did not predict the results we 819 00:16:48,120 --> 00:16:49,730 to say we did not predict the results we got you know the computational fluid 820 00:16:49,730 --> 00:16:49,740 got you know the computational fluid 821 00:16:49,740 --> 00:16:50,390 got you know the computational fluid then 822 00:16:50,390 --> 00:16:50,400 then 823 00:16:50,400 --> 00:16:52,730 then the Windtunnel results did not predict 824 00:16:52,730 --> 00:16:52,740 the Windtunnel results did not predict 825 00:16:52,740 --> 00:16:54,230 the Windtunnel results did not predict the results we got out the first part of 826 00:16:54,230 --> 00:16:54,240 the results we got out the first part of 827 00:16:54,240 --> 00:16:57,680 the results we got out the first part of the ship one experiment but they 828 00:16:57,680 --> 00:16:57,690 the ship one experiment but they 829 00:16:57,690 --> 00:17:02,030 the ship one experiment but they predicted enough of the information in a 830 00:17:02,030 --> 00:17:02,040 predicted enough of the information in a 831 00:17:02,040 --> 00:17:03,680 predicted enough of the information in a satisfactory manner that we now have 832 00:17:03,680 --> 00:17:03,690 satisfactory manner that we now have 833 00:17:03,690 --> 00:17:06,050 satisfactory manner that we now have something to do some checks and balances 834 00:17:06,050 --> 00:17:06,060 something to do some checks and balances 835 00:17:06,060 --> 00:17:08,630 something to do some checks and balances against as I said earlier now is time 836 00:17:08,630 --> 00:17:08,640 against as I said earlier now is time 837 00:17:08,640 --> 00:17:10,730 against as I said earlier now is time for the CFD folks and for the Windtunnel 838 00:17:10,730 --> 00:17:10,740 for the CFD folks and for the Windtunnel 839 00:17:10,740 --> 00:17:12,500 for the CFD folks and for the Windtunnel folks to go back and look at the 840 00:17:12,500 --> 00:17:12,510 folks to go back and look at the 841 00:17:12,510 --> 00:17:15,020 folks to go back and look at the differences between what they thought we 842 00:17:15,020 --> 00:17:15,030 differences between what they thought we 843 00:17:15,030 --> 00:17:16,460 differences between what they thought we were going to flight test and what we 844 00:17:16,460 --> 00:17:16,470 were going to flight test and what we 845 00:17:16,470 --> 00:17:18,050 were going to flight test and what we flight tested and see whether or not 846 00:17:18,050 --> 00:17:18,060 flight tested and see whether or not 847 00:17:18,060 --> 00:17:19,790 flight tested and see whether or not they can we can start correlating the 848 00:17:19,790 --> 00:17:19,800 they can we can start correlating the 849 00:17:19,800 --> 00:17:22,910 they can we can start correlating the differences between the two most 850 00:17:22,910 --> 00:17:22,920 differences between the two most 851 00:17:22,920 --> 00:17:25,160 differences between the two most importantly I think the flight 852 00:17:25,160 --> 00:17:25,170 importantly I think the flight 853 00:17:25,170 --> 00:17:26,780 importantly I think the flight experiment has shown that yes you can 854 00:17:26,780 --> 00:17:26,790 experiment has shown that yes you can 855 00:17:26,790 --> 00:17:30,230 experiment has shown that yes you can get laminar flow and it's not as may not 856 00:17:30,230 --> 00:17:30,240 get laminar flow and it's not as may not 857 00:17:30,240 --> 00:17:32,150 get laminar flow and it's not as may not be as difficult to do under these 858 00:17:32,150 --> 00:17:32,160 be as difficult to do under these 859 00:17:32,160 --> 00:17:34,580 be as difficult to do under these circumstances as we anticipated it 860 00:17:34,580 --> 00:17:34,590 circumstances as we anticipated it 861 00:17:34,590 --> 00:17:36,290 circumstances as we anticipated it wouldn't I mean there was a lot of a lot 862 00:17:36,290 --> 00:17:36,300 wouldn't I mean there was a lot of a lot 863 00:17:36,300 --> 00:17:37,490 wouldn't I mean there was a lot of a lot of apprehension that we were going to 864 00:17:37,490 --> 00:17:37,500 of apprehension that we were going to 865 00:17:37,500 --> 00:17:39,830 of apprehension that we were going to have to do a lot of provide a lot of 866 00:17:39,830 --> 00:17:39,840 have to do a lot of provide a lot of 867 00:17:39,840 --> 00:17:41,360 have to do a lot of provide a lot of suction for example in order to maintain 868 00:17:41,360 --> 00:17:41,370 suction for example in order to maintain 869 00:17:41,370 --> 00:17:44,150 suction for example in order to maintain laminar flow and we're not providing all 870 00:17:44,150 --> 00:17:44,160 laminar flow and we're not providing all 871 00:17:44,160 --> 00:17:46,190 laminar flow and we're not providing all that extraordinary in a really large 872 00:17:46,190 --> 00:17:46,200 that extraordinary in a really large 873 00:17:46,200 --> 00:17:48,020 that extraordinary in a really large amount we're definitely providing 874 00:17:48,020 --> 00:17:48,030 amount we're definitely providing 875 00:17:48,030 --> 00:17:49,730 amount we're definitely providing suction but the amount is not as much as 876 00:17:49,730 --> 00:17:49,740 suction but the amount is not as much as 877 00:17:49,740 --> 00:17:52,610 suction but the amount is not as much as people predicted it would be so we are 878 00:17:52,610 --> 00:17:52,620 people predicted it would be so we are 879 00:17:52,620 --> 00:17:55,130 people predicted it would be so we are starting to show you know that that this 880 00:17:55,130 --> 00:17:55,140 starting to show you know that that this 881 00:17:55,140 --> 00:17:57,950 starting to show you know that that this is a handleable problem it's not out of 882 00:17:57,950 --> 00:17:57,960 is a handleable problem it's not out of 883 00:17:57,960 --> 00:18:00,080 is a handleable problem it's not out of our out of our capability which is a 884 00:18:00,080 --> 00:18:00,090 our out of our capability which is a 885 00:18:00,090 --> 00:18:02,690 our out of our capability which is a very big confidence builder that we can 886 00:18:02,690 --> 00:18:02,700 very big confidence builder that we can 887 00:18:02,700 --> 00:18:05,090 very big confidence builder that we can get from here to there without and 888 00:18:05,090 --> 00:18:05,100 get from here to there without and 889 00:18:05,100 --> 00:18:06,950 get from here to there without and without having to go over the impossible 890 00:18:06,950 --> 00:18:06,960 without having to go over the impossible 891 00:18:06,960 --> 00:18:10,330 without having to go over the impossible you know the impossible Ridge first so 892 00:18:10,330 --> 00:18:10,340 you know the impossible Ridge first so 893 00:18:10,340 --> 00:18:12,530 you know the impossible Ridge first so basically what we've done so far is just 894 00:18:12,530 --> 00:18:12,540 basically what we've done so far is just 895 00:18:12,540 --> 00:18:14,210 basically what we've done so far is just provide the data to validate what we've 896 00:18:14,210 --> 00:18:14,220 provide the data to validate what we've 897 00:18:14,220 --> 00:18:15,860 provide the data to validate what we've done so you know what the the 898 00:18:15,860 --> 00:18:15,870 done so you know what the the 899 00:18:15,870 --> 00:18:18,290 done so you know what the the theoretical people have done so far and 900 00:18:18,290 --> 00:18:18,300 theoretical people have done so far and 901 00:18:18,300 --> 00:18:21,740 theoretical people have done so far and then that gives them the step the 902 00:18:21,740 --> 00:18:21,750 then that gives them the step the 903 00:18:21,750 --> 00:18:23,090 then that gives them the step the confidence step they need that they can 904 00:18:23,090 --> 00:18:23,100 confidence step they need that they can 905 00:18:23,100 --> 00:18:25,190 confidence step they need that they can go the next you know they can go to the 906 00:18:25,190 --> 00:18:25,200 go the next you know they can go to the 907 00:18:25,200 --> 00:18:27,230 go the next you know they can go to the next level of complexity and start 908 00:18:27,230 --> 00:18:27,240 next level of complexity and start 909 00:18:27,240 --> 00:18:28,610 next level of complexity and start understanding a little bit more about 910 00:18:28,610 --> 00:18:28,620 understanding a little bit more about 911 00:18:28,620 --> 00:18:30,290 understanding a little bit more about you know the difference is the 912 00:18:30,290 --> 00:18:30,300 you know the difference is the 913 00:18:30,300 --> 00:18:32,660 you know the difference is the difference between cross flow and you 914 00:18:32,660 --> 00:18:32,670 difference between cross flow and you 915 00:18:32,670 --> 00:18:35,990 difference between cross flow and you know you do the n factor computational 916 00:18:35,990 --> 00:18:36,000 know you do the n factor computational 917 00:18:36,000 --> 00:18:38,540 know you do the n factor computational results and those kinds of those kinds 918 00:18:38,540 --> 00:18:38,550 results and those kinds of those kinds 919 00:18:38,550 --> 00:18:39,800 results and those kinds of those kinds of computational theories that they're 920 00:18:39,800 --> 00:18:39,810 of computational theories that they're 921 00:18:39,810 --> 00:18:41,750 of computational theories that they're using they're getting enough data to 922 00:18:41,750 --> 00:18:41,760 using they're getting enough data to 923 00:18:41,760 --> 00:18:44,240 using they're getting enough data to validate that the theories are valid 924 00:18:44,240 --> 00:18:44,250 validate that the theories are valid 925 00:18:44,250 --> 00:18:45,890 validate that the theories are valid theories they just need they need to be 926 00:18:45,890 --> 00:18:45,900 theories they just need they need to be 927 00:18:45,900 --> 00:18:47,180 theories they just need they need to be tweaked up and tuned up just a little 928 00:18:47,180 --> 00:18:47,190 tweaked up and tuned up just a little 929 00:18:47,190 --> 00:18:50,920 tweaked up and tuned up just a little bit more 930 00:18:50,920 --> 00:18:50,930 931 00:18:50,930 --> 00:18:54,590 what you need for laminar flow control 932 00:18:54,590 --> 00:18:54,600 what you need for laminar flow control 933 00:18:54,600 --> 00:18:56,720 what you need for laminar flow control and what you're finding to achieve the 934 00:18:56,720 --> 00:18:56,730 and what you're finding to achieve the 935 00:18:56,730 --> 00:18:58,370 and what you're finding to achieve the best possible results how does that 936 00:18:58,370 --> 00:18:58,380 best possible results how does that 937 00:18:58,380 --> 00:19:01,100 best possible results how does that eventually affect what they need in a 938 00:19:01,100 --> 00:19:01,110 eventually affect what they need in a 939 00:19:01,110 --> 00:19:03,260 eventually affect what they need in a sonic sonic boom area or in the high 940 00:19:03,260 --> 00:19:03,270 sonic sonic boom area or in the high 941 00:19:03,270 --> 00:19:05,300 sonic sonic boom area or in the high lift area their needs are obviously 942 00:19:05,300 --> 00:19:05,310 lift area their needs are obviously 943 00:19:05,310 --> 00:19:07,730 lift area their needs are obviously different yeah their needs are different 944 00:19:07,730 --> 00:19:07,740 different yeah their needs are different 945 00:19:07,740 --> 00:19:11,750 different yeah their needs are different and in fact the integration of laminar 946 00:19:11,750 --> 00:19:11,760 and in fact the integration of laminar 947 00:19:11,760 --> 00:19:16,400 and in fact the integration of laminar flow high left sonic boom or shaping is 948 00:19:16,400 --> 00:19:16,410 flow high left sonic boom or shaping is 949 00:19:16,410 --> 00:19:18,490 flow high left sonic boom or shaping is going to be a very difficult task 950 00:19:18,490 --> 00:19:18,500 going to be a very difficult task 951 00:19:18,500 --> 00:19:22,340 going to be a very difficult task because they don't meet those those at 952 00:19:22,340 --> 00:19:22,350 because they don't meet those those at 953 00:19:22,350 --> 00:19:24,350 because they don't meet those those at least those three phenomenon don't meet 954 00:19:24,350 --> 00:19:24,360 least those three phenomenon don't meet 955 00:19:24,360 --> 00:19:26,420 least those three phenomenon don't meet at the same place so it's going to be a 956 00:19:26,420 --> 00:19:26,430 at the same place so it's going to be a 957 00:19:26,430 --> 00:19:28,550 at the same place so it's going to be a compromise everybody is going to have to 958 00:19:28,550 --> 00:19:28,560 compromise everybody is going to have to 959 00:19:28,560 --> 00:19:32,390 compromise everybody is going to have to say through whatever whatever validation 960 00:19:32,390 --> 00:19:32,400 say through whatever whatever validation 961 00:19:32,400 --> 00:19:34,450 say through whatever whatever validation testing they do I can tolerate this much 962 00:19:34,450 --> 00:19:34,460 testing they do I can tolerate this much 963 00:19:34,460 --> 00:19:37,370 testing they do I can tolerate this much detriment to my best performance 964 00:19:37,370 --> 00:19:37,380 detriment to my best performance 965 00:19:37,380 --> 00:19:41,390 detriment to my best performance condition and still get some gain it's 966 00:19:41,390 --> 00:19:41,400 condition and still get some gain it's 967 00:19:41,400 --> 00:19:44,150 condition and still get some gain it's it's the added value added equation 968 00:19:44,150 --> 00:19:44,160 it's the added value added equation 969 00:19:44,160 --> 00:19:46,040 it's the added value added equation really more than anything else it's if I 970 00:19:46,040 --> 00:19:46,050 really more than anything else it's if I 971 00:19:46,050 --> 00:19:47,540 really more than anything else it's if I have some laminar flow under certain 972 00:19:47,540 --> 00:19:47,550 have some laminar flow under certain 973 00:19:47,550 --> 00:19:49,790 have some laminar flow under certain circumstances but I give it up during 974 00:19:49,790 --> 00:19:49,800 circumstances but I give it up during 975 00:19:49,800 --> 00:19:51,890 circumstances but I give it up during the approach and landing phase or the 976 00:19:51,890 --> 00:19:51,900 the approach and landing phase or the 977 00:19:51,900 --> 00:19:55,640 the approach and landing phase or the take-off phase if I have a sonic boom 978 00:19:55,640 --> 00:19:55,650 take-off phase if I have a sonic boom 979 00:19:55,650 --> 00:19:58,850 take-off phase if I have a sonic boom but it's not as offensive as a very 980 00:19:58,850 --> 00:19:58,860 but it's not as offensive as a very 981 00:19:58,860 --> 00:20:03,200 but it's not as offensive as a very sharp sonic boom and if I have you know 982 00:20:03,200 --> 00:20:03,210 sharp sonic boom and if I have you know 983 00:20:03,210 --> 00:20:05,180 sharp sonic boom and if I have you know a noise footprint from the Heil you know 984 00:20:05,180 --> 00:20:05,190 a noise footprint from the Heil you know 985 00:20:05,190 --> 00:20:06,890 a noise footprint from the Heil you know because of the high lift phenomenon 986 00:20:06,890 --> 00:20:06,900 because of the high lift phenomenon 987 00:20:06,900 --> 00:20:09,320 because of the high lift phenomenon that's half of what you know meets the 988 00:20:09,320 --> 00:20:09,330 that's half of what you know meets the 989 00:20:09,330 --> 00:20:12,410 that's half of what you know meets the fa r criteria but it's not the not as 990 00:20:12,410 --> 00:20:12,420 fa r criteria but it's not the not as 991 00:20:12,420 --> 00:20:15,430 fa r criteria but it's not the not as good as I really want it that whole 992 00:20:15,430 --> 00:20:15,440 good as I really want it that whole 993 00:20:15,440 --> 00:20:17,660 good as I really want it that whole compromise and that whole integration 994 00:20:17,660 --> 00:20:17,670 compromise and that whole integration 995 00:20:17,670 --> 00:20:21,350 compromise and that whole integration issue has not really been addressed yet 996 00:20:21,350 --> 00:20:21,360 issue has not really been addressed yet 997 00:20:21,360 --> 00:20:23,330 issue has not really been addressed yet it's everybody recognizes we're going to 998 00:20:23,330 --> 00:20:23,340 it's everybody recognizes we're going to 999 00:20:23,340 --> 00:20:24,890 it's everybody recognizes we're going to have to compromise high lift and and 1000 00:20:24,890 --> 00:20:24,900 have to compromise high lift and and 1001 00:20:24,900 --> 00:20:26,600 have to compromise high lift and and supersonic laminar flow are almost 1002 00:20:26,600 --> 00:20:26,610 supersonic laminar flow are almost 1003 00:20:26,610 --> 00:20:28,880 supersonic laminar flow are almost mutually exclusive for certain parts of 1004 00:20:28,880 --> 00:20:28,890 mutually exclusive for certain parts of 1005 00:20:28,890 --> 00:20:31,700 mutually exclusive for certain parts of a flight regime but you don't need 1006 00:20:31,700 --> 00:20:31,710 a flight regime but you don't need 1007 00:20:31,710 --> 00:20:32,990 a flight regime but you don't need supersonic laminar flow when you're 1008 00:20:32,990 --> 00:20:33,000 supersonic laminar flow when you're 1009 00:20:33,000 --> 00:20:35,780 supersonic laminar flow when you're subsonic so maybe it's not that big a 1010 00:20:35,780 --> 00:20:35,790 subsonic so maybe it's not that big a 1011 00:20:35,790 --> 00:20:38,540 subsonic so maybe it's not that big a deal you know maybe we can work around 1012 00:20:38,540 --> 00:20:38,550 deal you know maybe we can work around 1013 00:20:38,550 --> 00:20:41,810 deal you know maybe we can work around that one and so I think that that we 1014 00:20:41,810 --> 00:20:41,820 that one and so I think that that we 1015 00:20:41,820 --> 00:20:44,630 that one and so I think that that we have to understand the conditions where 1016 00:20:44,630 --> 00:20:44,640 have to understand the conditions where 1017 00:20:44,640 --> 00:20:46,310 have to understand the conditions where supersonic laminar flow occurs we have 1018 00:20:46,310 --> 00:20:46,320 supersonic laminar flow occurs we have 1019 00:20:46,320 --> 00:20:47,930 supersonic laminar flow occurs we have to understand the conditions for getting 1020 00:20:47,930 --> 00:20:47,940 to understand the conditions for getting 1021 00:20:47,940 --> 00:20:49,280 to understand the conditions for getting good high lift performance 1022 00:20:49,280 --> 00:20:49,290 good high lift performance 1023 00:20:49,290 --> 00:20:51,830 good high lift performance characteristics and then once we 1024 00:20:51,830 --> 00:20:51,840 characteristics and then once we 1025 00:20:51,840 --> 00:20:53,000 characteristics and then once we understand both of those we can 1026 00:20:53,000 --> 00:20:53,010 understand both of those we can 1027 00:20:53,010 --> 00:20:54,800 understand both of those we can integrate the requirements for both in 1028 00:20:54,800 --> 00:20:54,810 integrate the requirements for both in 1029 00:20:54,810 --> 00:20:57,800 integrate the requirements for both in such a way that we don't destroy you 1030 00:20:57,800 --> 00:20:57,810 such a way that we don't destroy you 1031 00:20:57,810 --> 00:21:00,140 such a way that we don't destroy you know 75% of the capability in either 1032 00:21:00,140 --> 00:21:00,150 know 75% of the capability in either 1033 00:21:00,150 --> 00:21:02,180 know 75% of the capability in either case the worst thing you could have is a 1034 00:21:02,180 --> 00:21:02,190 case the worst thing you could have is a 1035 00:21:02,190 --> 00:21:03,890 case the worst thing you could have is a poorly integrated airplane one that does 1036 00:21:03,890 --> 00:21:03,900 poorly integrated airplane one that does 1037 00:21:03,900 --> 00:21:04,140 poorly integrated airplane one that does ever 1038 00:21:04,140 --> 00:21:04,150 ever 1039 00:21:04,150 --> 00:21:06,660 ever think poorly what we're hoping for is an 1040 00:21:06,660 --> 00:21:06,670 think poorly what we're hoping for is an 1041 00:21:06,670 --> 00:21:08,370 think poorly what we're hoping for is an airplane that has all the technologies 1042 00:21:08,370 --> 00:21:08,380 airplane that has all the technologies 1043 00:21:08,380 --> 00:21:13,260 airplane that has all the technologies put together in such a way that we've 1044 00:21:13,260 --> 00:21:13,270 put together in such a way that we've 1045 00:21:13,270 --> 00:21:16,080 put together in such a way that we've maximized you know all the parameters at 1046 00:21:16,080 --> 00:21:16,090 maximized you know all the parameters at 1047 00:21:16,090 --> 00:21:17,880 maximized you know all the parameters at the same time and you're not gonna get a 1048 00:21:17,880 --> 00:21:17,890 the same time and you're not gonna get a 1049 00:21:17,890 --> 00:21:33,030 the same time and you're not gonna get a hundred percent of any other what do you 1050 00:21:33,030 --> 00:21:33,040 hundred percent of any other what do you 1051 00:21:33,040 --> 00:21:34,350 hundred percent of any other what do you feel like the purpose of all your 1052 00:21:34,350 --> 00:21:34,360 feel like the purpose of all your 1053 00:21:34,360 --> 00:21:42,030 feel like the purpose of all your research the database will probably be 1054 00:21:42,030 --> 00:21:42,040 research the database will probably be 1055 00:21:42,040 --> 00:21:45,630 research the database will probably be used for years to come to validate B be 1056 00:21:45,630 --> 00:21:45,640 used for years to come to validate B be 1057 00:21:45,640 --> 00:21:47,280 used for years to come to validate B be a lot of test case data to validate 1058 00:21:47,280 --> 00:21:47,290 a lot of test case data to validate 1059 00:21:47,290 --> 00:21:50,100 a lot of test case data to validate development of new computational codes 1060 00:21:50,100 --> 00:21:50,110 development of new computational codes 1061 00:21:50,110 --> 00:21:55,980 development of new computational codes and and theoretical codes the area we're 1062 00:21:55,980 --> 00:21:55,990 and and theoretical codes the area we're 1063 00:21:55,990 --> 00:21:58,350 and and theoretical codes the area we're dabbling in now supersonic laminar flow 1064 00:21:58,350 --> 00:21:58,360 dabbling in now supersonic laminar flow 1065 00:21:58,360 --> 00:22:00,990 dabbling in now supersonic laminar flow is an area that is is brand-new you know 1066 00:22:00,990 --> 00:22:01,000 is an area that is is brand-new you know 1067 00:22:01,000 --> 00:22:02,940 is an area that is is brand-new you know there was some experiments done in years 1068 00:22:02,940 --> 00:22:02,950 there was some experiments done in years 1069 00:22:02,950 --> 00:22:06,570 there was some experiments done in years gone by there's some x21 criteria that 1070 00:22:06,570 --> 00:22:06,580 gone by there's some x21 criteria that 1071 00:22:06,580 --> 00:22:08,970 gone by there's some x21 criteria that people believe in there's some work that 1072 00:22:08,970 --> 00:22:08,980 people believe in there's some work that 1073 00:22:08,980 --> 00:22:11,760 people believe in there's some work that was done on a 104 you know back in the I 1074 00:22:11,760 --> 00:22:11,770 was done on a 104 you know back in the I 1075 00:22:11,770 --> 00:22:15,030 was done on a 104 you know back in the I guess was the early 60s those two 1076 00:22:15,030 --> 00:22:15,040 guess was the early 60s those two 1077 00:22:15,040 --> 00:22:17,880 guess was the early 60s those two experiments were enough to set establish 1078 00:22:17,880 --> 00:22:17,890 experiments were enough to set establish 1079 00:22:17,890 --> 00:22:20,610 experiments were enough to set establish some criteria for whether or not 1080 00:22:20,610 --> 00:22:20,620 some criteria for whether or not 1081 00:22:20,620 --> 00:22:22,890 some criteria for whether or not supersonic laminar flow is or laminar 1082 00:22:22,890 --> 00:22:22,900 supersonic laminar flow is or laminar 1083 00:22:22,900 --> 00:22:24,780 supersonic laminar flow is or laminar flow and supersonic laminar flow were 1084 00:22:24,780 --> 00:22:24,790 flow and supersonic laminar flow were 1085 00:22:24,790 --> 00:22:27,900 flow and supersonic laminar flow were achievable what we have done and what we 1086 00:22:27,900 --> 00:22:27,910 achievable what we have done and what we 1087 00:22:27,910 --> 00:22:29,250 achievable what we have done and what we will be doing through the Excel 1088 00:22:29,250 --> 00:22:29,260 will be doing through the Excel 1089 00:22:29,260 --> 00:22:31,590 will be doing through the Excel experiment besides validating some of 1090 00:22:31,590 --> 00:22:31,600 experiment besides validating some of 1091 00:22:31,600 --> 00:22:32,790 experiment besides validating some of the codes that the high-speed civil 1092 00:22:32,790 --> 00:22:32,800 the codes that the high-speed civil 1093 00:22:32,800 --> 00:22:34,170 the codes that the high-speed civil transport is going to use for design 1094 00:22:34,170 --> 00:22:34,180 transport is going to use for design 1095 00:22:34,180 --> 00:22:36,510 transport is going to use for design methodology we will actually fill the 1096 00:22:36,510 --> 00:22:36,520 methodology we will actually fill the 1097 00:22:36,520 --> 00:22:39,240 methodology we will actually fill the database that will allow researchers for 1098 00:22:39,240 --> 00:22:39,250 database that will allow researchers for 1099 00:22:39,250 --> 00:22:42,150 database that will allow researchers for future generation airplanes augment the 1100 00:22:42,150 --> 00:22:42,160 future generation airplanes augment the 1101 00:22:42,160 --> 00:22:45,540 future generation airplanes augment the designs in other ways not just for the 1102 00:22:45,540 --> 00:22:45,550 designs in other ways not just for the 1103 00:22:45,550 --> 00:22:47,430 designs in other ways not just for the point design called the high-speed civil 1104 00:22:47,430 --> 00:22:47,440 point design called the high-speed civil 1105 00:22:47,440 --> 00:22:49,350 point design called the high-speed civil transport but perhaps for some other 1106 00:22:49,350 --> 00:22:49,360 transport but perhaps for some other 1107 00:22:49,360 --> 00:22:52,410 transport but perhaps for some other vehicles some other more focused more 1108 00:22:52,410 --> 00:22:52,420 vehicles some other more focused more 1109 00:22:52,420 --> 00:22:54,090 vehicles some other more focused more highly specialized vehicle that could 1110 00:22:54,090 --> 00:22:54,100 highly specialized vehicle that could 1111 00:22:54,100 --> 00:22:58,050 highly specialized vehicle that could take advantage of an airfoil or a 1112 00:22:58,050 --> 00:22:58,060 take advantage of an airfoil or a 1113 00:22:58,060 --> 00:23:01,020 take advantage of an airfoil or a pressure distribution development for 1114 00:23:01,020 --> 00:23:01,030 pressure distribution development for 1115 00:23:01,030 --> 00:23:02,460 pressure distribution development for another region of flight that maybe we 1116 00:23:02,460 --> 00:23:02,470 another region of flight that maybe we 1117 00:23:02,470 --> 00:23:03,990 another region of flight that maybe we haven't thought too much about to date 1118 00:23:03,990 --> 00:23:04,000 haven't thought too much about to date 1119 00:23:04,000 --> 00:23:08,670 haven't thought too much about to date so the database by itself is is going to 1120 00:23:08,670 --> 00:23:08,680 so the database by itself is is going to 1121 00:23:08,680 --> 00:23:11,550 so the database by itself is is going to be valuable to everybody it's it's 1122 00:23:11,550 --> 00:23:11,560 be valuable to everybody it's it's 1123 00:23:11,560 --> 00:23:13,080 be valuable to everybody it's it's certainly designed to help the 1124 00:23:13,080 --> 00:23:13,090 certainly designed to help the 1125 00:23:13,090 --> 00:23:14,700 certainly designed to help the high-speed civil transport but to 1126 00:23:14,700 --> 00:23:14,710 high-speed civil transport but to 1127 00:23:14,710 --> 00:23:16,290 high-speed civil transport but to understand the phenomenon transition 1128 00:23:16,290 --> 00:23:16,300 understand the phenomenon transition 1129 00:23:16,300 --> 00:23:17,520 understand the phenomenon transition physics and 1130 00:23:17,520 --> 00:23:17,530 physics and 1131 00:23:17,530 --> 00:23:20,100 physics and and you know attachment-line phenomenon 1132 00:23:20,100 --> 00:23:20,110 and you know attachment-line phenomenon 1133 00:23:20,110 --> 00:23:21,510 and you know attachment-line phenomenon and that type of thing that's the 1134 00:23:21,510 --> 00:23:21,520 and that type of thing that's the 1135 00:23:21,520 --> 00:23:23,130 and that type of thing that's the importance that's some of the important 1136 00:23:23,130 --> 00:23:23,140 importance that's some of the important 1137 00:23:23,140 --> 00:23:24,360 importance that's some of the important data that will come out of this 1138 00:23:24,360 --> 00:23:24,370 data that will come out of this 1139 00:23:24,370 --> 00:23:26,670 data that will come out of this I mean we've played we've been in the 1140 00:23:26,670 --> 00:23:26,680 I mean we've played we've been in the 1141 00:23:26,680 --> 00:23:28,830 I mean we've played we've been in the laminar flow business for well if you 1142 00:23:28,830 --> 00:23:28,840 laminar flow business for well if you 1143 00:23:28,840 --> 00:23:30,210 laminar flow business for well if you read some of the some accounts we've 1144 00:23:30,210 --> 00:23:30,220 read some of the some accounts we've 1145 00:23:30,220 --> 00:23:31,890 read some of the some accounts we've been in laminar flow since beginning of 1146 00:23:31,890 --> 00:23:31,900 been in laminar flow since beginning of 1147 00:23:31,900 --> 00:23:34,500 been in laminar flow since beginning of NASA or NACA actually there was some 1148 00:23:34,500 --> 00:23:34,510 NASA or NACA actually there was some 1149 00:23:34,510 --> 00:23:35,880 NASA or NACA actually there was some laminar flow work done in the begin 1150 00:23:35,880 --> 00:23:35,890 laminar flow work done in the begin 1151 00:23:35,890 --> 00:23:39,000 laminar flow work done in the begin during the NACA days I personally have 1152 00:23:39,000 --> 00:23:39,010 during the NACA days I personally have 1153 00:23:39,010 --> 00:23:40,350 during the NACA days I personally have been in the laminar flow business since 1154 00:23:40,350 --> 00:23:40,360 been in the laminar flow business since 1155 00:23:40,360 --> 00:23:43,890 been in the laminar flow business since 1979 and it's been subsonic laminar flow 1156 00:23:43,890 --> 00:23:43,900 1979 and it's been subsonic laminar flow 1157 00:23:43,900 --> 00:23:46,050 1979 and it's been subsonic laminar flow up till now and there's always new 1158 00:23:46,050 --> 00:23:46,060 up till now and there's always new 1159 00:23:46,060 --> 00:23:48,690 up till now and there's always new things to look at there's always the 1160 00:23:48,690 --> 00:23:48,700 things to look at there's always the 1161 00:23:48,700 --> 00:23:50,580 things to look at there's always the effect of once you you know you take a 1162 00:23:50,580 --> 00:23:50,590 effect of once you you know you take a 1163 00:23:50,590 --> 00:23:52,770 effect of once you you know you take a known configuration now you start 1164 00:23:52,770 --> 00:23:52,780 known configuration now you start 1165 00:23:52,780 --> 00:23:54,300 known configuration now you start varying vary any of the parameters 1166 00:23:54,300 --> 00:23:54,310 varying vary any of the parameters 1167 00:23:54,310 --> 00:23:57,210 varying vary any of the parameters instead of having 70° sweep let's look 1168 00:23:57,210 --> 00:23:57,220 instead of having 70° sweep let's look 1169 00:23:57,220 --> 00:24:00,240 instead of having 70° sweep let's look at the effect of 75° sweep instead of 1170 00:24:00,240 --> 00:24:00,250 at the effect of 75° sweep instead of 1171 00:24:00,250 --> 00:24:02,370 at the effect of 75° sweep instead of having maximum suction let's look at 1172 00:24:02,370 --> 00:24:02,380 having maximum suction let's look at 1173 00:24:02,380 --> 00:24:04,650 having maximum suction let's look at less suction instead of having two 1174 00:24:04,650 --> 00:24:04,660 less suction instead of having two 1175 00:24:04,660 --> 00:24:06,150 less suction instead of having two degrees angle of attack let's look at 1176 00:24:06,150 --> 00:24:06,160 degrees angle of attack let's look at 1177 00:24:06,160 --> 00:24:08,370 degrees angle of attack let's look at you know three degrees or 1 degree angle 1178 00:24:08,370 --> 00:24:08,380 you know three degrees or 1 degree angle 1179 00:24:08,380 --> 00:24:09,960 you know three degrees or 1 degree angle of attack there's a whole raft of 1180 00:24:09,960 --> 00:24:09,970 of attack there's a whole raft of 1181 00:24:09,970 --> 00:24:12,450 of attack there's a whole raft of parameters there that that when you're 1182 00:24:12,450 --> 00:24:12,460 parameters there that that when you're 1183 00:24:12,460 --> 00:24:13,980 parameters there that that when you're when you're focused on a vehicle that 1184 00:24:13,980 --> 00:24:13,990 when you're focused on a vehicle that 1185 00:24:13,990 --> 00:24:16,500 when you're focused on a vehicle that has a certain flight regime you tend to 1186 00:24:16,500 --> 00:24:16,510 has a certain flight regime you tend to 1187 00:24:16,510 --> 00:24:19,560 has a certain flight regime you tend to only look within that window and will 1188 00:24:19,560 --> 00:24:19,570 only look within that window and will 1189 00:24:19,570 --> 00:24:21,360 only look within that window and will collect enough data that you can look at 1190 00:24:21,360 --> 00:24:21,370 collect enough data that you can look at 1191 00:24:21,370 --> 00:24:23,630 collect enough data that you can look at the effect of changing the various 1192 00:24:23,630 --> 00:24:23,640 the effect of changing the various 1193 00:24:23,640 --> 00:24:27,330 the effect of changing the various parameters and use that to validate 1194 00:24:27,330 --> 00:24:27,340 parameters and use that to validate 1195 00:24:27,340 --> 00:24:35,360 parameters and use that to validate other codes for other flight vehicles 1196 00:24:35,360 --> 00:24:35,370 1197 00:24:35,370 --> 00:24:38,400 both f-16xl airplanes are hangared right 1198 00:24:38,400 --> 00:24:38,410 both f-16xl airplanes are hangared right 1199 00:24:38,410 --> 00:24:40,380 both f-16xl airplanes are hangared right now although Friday we'll be flying the 1200 00:24:40,380 --> 00:24:40,390 now although Friday we'll be flying the 1201 00:24:40,390 --> 00:24:48,840 now although Friday we'll be flying the first airplane again so excel ship ship 1202 00:24:48,840 --> 00:24:48,850 first airplane again so excel ship ship 1203 00:24:48,850 --> 00:24:50,850 first airplane again so excel ship ship one which is the one that we started the 1204 00:24:50,850 --> 00:24:50,860 one which is the one that we started the 1205 00:24:50,860 --> 00:24:53,550 one which is the one that we started the NASA Rockwell North American aircraft 1206 00:24:53,550 --> 00:24:53,560 NASA Rockwell North American aircraft 1207 00:24:53,560 --> 00:24:57,210 NASA Rockwell North American aircraft experiment with is going into a phase 1208 00:24:57,210 --> 00:24:57,220 experiment with is going into a phase 1209 00:24:57,220 --> 00:25:00,840 experiment with is going into a phase we'll call it a phase 2 experimentation 1210 00:25:00,840 --> 00:25:00,850 we'll call it a phase 2 experimentation 1211 00:25:00,850 --> 00:25:02,820 we'll call it a phase 2 experimentation where we are actually trying to document 1212 00:25:02,820 --> 00:25:02,830 where we are actually trying to document 1213 00:25:02,830 --> 00:25:06,330 where we are actually trying to document collect significantly more data on the 1214 00:25:06,330 --> 00:25:06,340 collect significantly more data on the 1215 00:25:06,340 --> 00:25:08,810 collect significantly more data on the suction requirements for laminar flow 1216 00:25:08,810 --> 00:25:08,820 suction requirements for laminar flow 1217 00:25:08,820 --> 00:25:11,880 suction requirements for laminar flow phase one was basically can we can we 1218 00:25:11,880 --> 00:25:11,890 phase one was basically can we can we 1219 00:25:11,890 --> 00:25:14,640 phase one was basically can we can we achieve laminar flow back to you know 25 1220 00:25:14,640 --> 00:25:14,650 achieve laminar flow back to you know 25 1221 00:25:14,650 --> 00:25:17,700 achieve laminar flow back to you know 25 or 30 percent cord phase 2 is understand 1222 00:25:17,700 --> 00:25:17,710 or 30 percent cord phase 2 is understand 1223 00:25:17,710 --> 00:25:19,440 or 30 percent cord phase 2 is understand the the suction distribution that's 1224 00:25:19,440 --> 00:25:19,450 the the suction distribution that's 1225 00:25:19,450 --> 00:25:21,170 the the suction distribution that's required to do that 1226 00:25:21,170 --> 00:25:21,180 required to do that 1227 00:25:21,180 --> 00:25:24,720 required to do that so yes the ship one is in a second phase 1228 00:25:24,720 --> 00:25:24,730 so yes the ship one is in a second phase 1229 00:25:24,730 --> 00:25:26,160 so yes the ship one is in a second phase where we're collecting another set of 1230 00:25:26,160 --> 00:25:26,170 where we're collecting another set of 1231 00:25:26,170 --> 00:25:29,790 where we're collecting another set of data when that's complete the airplane 1232 00:25:29,790 --> 00:25:29,800 data when that's complete the airplane 1233 00:25:29,800 --> 00:25:30,470 data when that's complete the airplane in fact will 1234 00:25:30,470 --> 00:25:30,480 in fact will 1235 00:25:30,480 --> 00:25:33,620 in fact will turned back to transferred back to NASA 1236 00:25:33,620 --> 00:25:33,630 turned back to transferred back to NASA 1237 00:25:33,630 --> 00:25:35,510 turned back to transferred back to NASA Langley where they will begin the high 1238 00:25:35,510 --> 00:25:35,520 Langley where they will begin the high 1239 00:25:35,520 --> 00:25:37,130 Langley where they will begin the high lift experiment where they will actually 1240 00:25:37,130 --> 00:25:37,140 lift experiment where they will actually 1241 00:25:37,140 --> 00:25:40,100 lift experiment where they will actually start looking into the configuration 1242 00:25:40,100 --> 00:25:40,110 start looking into the configuration 1243 00:25:40,110 --> 00:25:43,100 start looking into the configuration requirements for high left for the 1244 00:25:43,100 --> 00:25:43,110 requirements for high left for the 1245 00:25:43,110 --> 00:25:44,780 requirements for high left for the supersonic our high speed Scylla 1246 00:25:44,780 --> 00:25:44,790 supersonic our high speed Scylla 1247 00:25:44,790 --> 00:25:48,890 supersonic our high speed Scylla transport and Dryden in Langley will be 1248 00:25:48,890 --> 00:25:48,900 transport and Dryden in Langley will be 1249 00:25:48,900 --> 00:25:50,870 transport and Dryden in Langley will be working together on that experiment with 1250 00:25:50,870 --> 00:25:50,880 working together on that experiment with 1251 00:25:50,880 --> 00:25:52,250 working together on that experiment with Langley being the lead most of the 1252 00:25:52,250 --> 00:25:52,260 Langley being the lead most of the 1253 00:25:52,260 --> 00:25:53,539 Langley being the lead most of the flight activity occurring back at 1254 00:25:53,539 --> 00:25:53,549 flight activity occurring back at 1255 00:25:53,549 --> 00:25:54,950 flight activity occurring back at Langley and the modification activity 1256 00:25:54,950 --> 00:25:54,960 Langley and the modification activity 1257 00:25:54,960 --> 00:25:56,750 Langley and the modification activity occurring there we will provide the 1258 00:25:56,750 --> 00:25:56,760 occurring there we will provide the 1259 00:25:56,760 --> 00:25:59,390 occurring there we will provide the support as necessary to get that 1260 00:25:59,390 --> 00:25:59,400 support as necessary to get that 1261 00:25:59,400 --> 00:26:02,000 support as necessary to get that airplane in the air back there the 1262 00:26:02,000 --> 00:26:02,010 airplane in the air back there the 1263 00:26:02,010 --> 00:26:05,150 airplane in the air back there the second airplane ship 2 is the 1264 00:26:05,150 --> 00:26:05,160 second airplane ship 2 is the 1265 00:26:05,160 --> 00:26:08,180 second airplane ship 2 is the centerpiece of the laminar flow control 1266 00:26:08,180 --> 00:26:08,190 centerpiece of the laminar flow control 1267 00:26:08,190 --> 00:26:10,909 centerpiece of the laminar flow control phase of the high-speed research program 1268 00:26:10,909 --> 00:26:10,919 phase of the high-speed research program 1269 00:26:10,919 --> 00:26:13,130 phase of the high-speed research program and that airplane currently is 1270 00:26:13,130 --> 00:26:13,140 and that airplane currently is 1271 00:26:13,140 --> 00:26:15,409 and that airplane currently is configured with a passive glove which is 1272 00:26:15,409 --> 00:26:15,419 configured with a passive glove which is 1273 00:26:15,419 --> 00:26:17,659 configured with a passive glove which is no suction at all it's just a foam and 1274 00:26:17,659 --> 00:26:17,669 no suction at all it's just a foam and 1275 00:26:17,669 --> 00:26:21,070 no suction at all it's just a foam and fiberglass glove on the right wing and 1276 00:26:21,070 --> 00:26:21,080 fiberglass glove on the right wing and 1277 00:26:21,080 --> 00:26:22,820 fiberglass glove on the right wing and with that we'll be examining 1278 00:26:22,820 --> 00:26:22,830 with that we'll be examining 1279 00:26:22,830 --> 00:26:24,980 with that we'll be examining attachment-line criteria pressure 1280 00:26:24,980 --> 00:26:24,990 attachment-line criteria pressure 1281 00:26:24,990 --> 00:26:29,480 attachment-line criteria pressure distribution verification since they 1282 00:26:29,480 --> 00:26:29,490 distribution verification since they 1283 00:26:29,490 --> 00:26:31,130 distribution verification since they predicted that they designed the shape 1284 00:26:31,130 --> 00:26:31,140 predicted that they designed the shape 1285 00:26:31,140 --> 00:26:33,350 predicted that they designed the shape based on codes and we're going to go out 1286 00:26:33,350 --> 00:26:33,360 based on codes and we're going to go out 1287 00:26:33,360 --> 00:26:34,640 based on codes and we're going to go out and see if that shape really is 1288 00:26:34,640 --> 00:26:34,650 and see if that shape really is 1289 00:26:34,650 --> 00:26:36,080 and see if that shape really is providing the pressure distribution we 1290 00:26:36,080 --> 00:26:36,090 providing the pressure distribution we 1291 00:26:36,090 --> 00:26:38,570 providing the pressure distribution we had hoped for transition data where is 1292 00:26:38,570 --> 00:26:38,580 had hoped for transition data where is 1293 00:26:38,580 --> 00:26:40,280 had hoped for transition data where is laminar flow occurring on a passive 1294 00:26:40,280 --> 00:26:40,290 laminar flow occurring on a passive 1295 00:26:40,290 --> 00:26:42,799 laminar flow occurring on a passive surface that's shaped to be conducive to 1296 00:26:42,799 --> 00:26:42,809 surface that's shaped to be conducive to 1297 00:26:42,809 --> 00:26:44,690 surface that's shaped to be conducive to laminar flow in a supersonic flight 1298 00:26:44,690 --> 00:26:44,700 laminar flow in a supersonic flight 1299 00:26:44,700 --> 00:26:47,240 laminar flow in a supersonic flight environment and that's that's probably a 1300 00:26:47,240 --> 00:26:47,250 environment and that's that's probably a 1301 00:26:47,250 --> 00:26:48,919 environment and that's that's probably a four to six month flight program that we 1302 00:26:48,919 --> 00:26:48,929 four to six month flight program that we 1303 00:26:48,929 --> 00:26:51,260 four to six month flight program that we have planned there and at the term at 1304 00:26:51,260 --> 00:26:51,270 have planned there and at the term at 1305 00:26:51,270 --> 00:26:52,730 have planned there and at the term at the completion of that flight program 1306 00:26:52,730 --> 00:26:52,740 the completion of that flight program 1307 00:26:52,740 --> 00:26:54,470 the completion of that flight program that airplane will go back into 1308 00:26:54,470 --> 00:26:54,480 that airplane will go back into 1309 00:26:54,480 --> 00:26:58,330 that airplane will go back into modification for the installation of the 1310 00:26:58,330 --> 00:26:58,340 modification for the installation of the 1311 00:26:58,340 --> 00:27:00,980 modification for the installation of the big experiment if you will and that's 1312 00:27:00,980 --> 00:27:00,990 big experiment if you will and that's 1313 00:27:00,990 --> 00:27:04,090 big experiment if you will and that's the one where we'll be putting a glove 1314 00:27:04,090 --> 00:27:04,100 the one where we'll be putting a glove 1315 00:27:04,100 --> 00:27:06,380 the one where we'll be putting a glove suction glove on the airplane it'll go 1316 00:27:06,380 --> 00:27:06,390 suction glove on the airplane it'll go 1317 00:27:06,390 --> 00:27:07,789 suction glove on the airplane it'll go on the left wing of the airplane it'll 1318 00:27:07,789 --> 00:27:07,799 on the left wing of the airplane it'll 1319 00:27:07,799 --> 00:27:11,150 on the left wing of the airplane it'll be it'll go roughly back to 50 or 60 1320 00:27:11,150 --> 00:27:11,160 be it'll go roughly back to 50 or 60 1321 00:27:11,160 --> 00:27:13,310 be it'll go roughly back to 50 or 60 percent cord and that one will use 1322 00:27:13,310 --> 00:27:13,320 percent cord and that one will use 1323 00:27:13,320 --> 00:27:15,169 percent cord and that one will use suction to try to maintain laminar flow 1324 00:27:15,169 --> 00:27:15,179 suction to try to maintain laminar flow 1325 00:27:15,179 --> 00:27:19,880 suction to try to maintain laminar flow that far back these gloves are basically 1326 00:27:19,880 --> 00:27:19,890 that far back these gloves are basically 1327 00:27:19,890 --> 00:27:22,100 that far back these gloves are basically almost full span for the 70 degrees 1328 00:27:22,100 --> 00:27:22,110 almost full span for the 70 degrees 1329 00:27:22,110 --> 00:27:24,169 almost full span for the 70 degrees swept portion of the wing the wing is 1330 00:27:24,169 --> 00:27:24,179 swept portion of the wing the wing is 1331 00:27:24,179 --> 00:27:26,030 swept portion of the wing the wing is the airplanes claim to fame is it's the 1332 00:27:26,030 --> 00:27:26,040 the airplanes claim to fame is it's the 1333 00:27:26,040 --> 00:27:28,190 the airplanes claim to fame is it's the cranked arrow it's got a 70 degree swept 1334 00:27:28,190 --> 00:27:28,200 cranked arrow it's got a 70 degree swept 1335 00:27:28,200 --> 00:27:31,010 cranked arrow it's got a 70 degree swept portion and then it bends three-quarters 1336 00:27:31,010 --> 00:27:31,020 portion and then it bends three-quarters 1337 00:27:31,020 --> 00:27:33,080 portion and then it bends three-quarters the way out to the wingtip it bends to a 1338 00:27:33,080 --> 00:27:33,090 the way out to the wingtip it bends to a 1339 00:27:33,090 --> 00:27:35,270 the way out to the wingtip it bends to a 50 degree sweep and the section inboard 1340 00:27:35,270 --> 00:27:35,280 50 degree sweep and the section inboard 1341 00:27:35,280 --> 00:27:37,520 50 degree sweep and the section inboard of the 50 degree sweep is where we put 1342 00:27:37,520 --> 00:27:37,530 of the 50 degree sweep is where we put 1343 00:27:37,530 --> 00:27:38,780 of the 50 degree sweep is where we put all of the experiments because that's 1344 00:27:38,780 --> 00:27:38,790 all of the experiments because that's 1345 00:27:38,790 --> 00:27:42,380 all of the experiments because that's where our 70 degrees is so the second 1346 00:27:42,380 --> 00:27:42,390 where our 70 degrees is so the second 1347 00:27:42,390 --> 00:27:44,150 where our 70 degrees is so the second airplane will be a very busy airplane 1348 00:27:44,150 --> 00:27:44,160 airplane will be a very busy airplane 1349 00:27:44,160 --> 00:27:46,430 airplane will be a very busy airplane it's we're hoping to collect the entire 1350 00:27:46,430 --> 00:27:46,440 it's we're hoping to collect the entire 1351 00:27:46,440 --> 00:27:48,200 it's we're hoping to collect the entire database for the high speed civil 1352 00:27:48,200 --> 00:27:48,210 database for the high speed civil 1353 00:27:48,210 --> 00:27:50,960 database for the high speed civil transport laminar flow control effort by 1354 00:27:50,960 --> 00:27:50,970 transport laminar flow control effort by 1355 00:27:50,970 --> 00:27:54,470 transport laminar flow control effort by the end of fiscal year 95 and of course 1356 00:27:54,470 --> 00:27:54,480 the end of fiscal year 95 and of course 1357 00:27:54,480 --> 00:27:55,820 the end of fiscal year 95 and of course we don't have the glove on the airplane 1358 00:27:55,820 --> 00:27:55,830 we don't have the glove on the airplane 1359 00:27:55,830 --> 00:27:57,740 we don't have the glove on the airplane yet so you know we've got a lot of work 1360 00:27:57,740 --> 00:27:57,750 yet so you know we've got a lot of work 1361 00:27:57,750 --> 00:28:05,000 yet so you know we've got a lot of work ahead of us to try to get it all done it 1362 00:28:05,000 --> 00:28:05,010 ahead of us to try to get it all done it 1363 00:28:05,010 --> 00:28:07,010 ahead of us to try to get it all done it is on it is on and in fact we're hoping 1364 00:28:07,010 --> 00:28:07,020 is on it is on and in fact we're hoping 1365 00:28:07,020 --> 00:28:08,900 is on it is on and in fact we're hoping to have the first flight for that 1366 00:28:08,900 --> 00:28:08,910 to have the first flight for that 1367 00:28:08,910 --> 00:28:12,170 to have the first flight for that airplane in that configuration before 1368 00:28:12,170 --> 00:28:12,180 airplane in that configuration before 1369 00:28:12,180 --> 00:28:14,180 airplane in that configuration before the before the end of August and we're 1370 00:28:14,180 --> 00:28:14,190 the before the end of August and we're 1371 00:28:14,190 --> 00:28:15,710 the before the end of August and we're hopeful that it'll actually be the first 1372 00:28:15,710 --> 00:28:15,720 hopeful that it'll actually be the first 1373 00:28:15,720 --> 00:28:17,330 hopeful that it'll actually be the first or second week of August I will actually 1374 00:28:17,330 --> 00:28:17,340 or second week of August I will actually 1375 00:28:17,340 --> 00:28:31,810 or second week of August I will actually get the first flight with that glove on 1376 00:28:31,810 --> 00:28:31,820 1377 00:28:31,820 --> 00:28:35,510 the glove itself is of course the skin 1378 00:28:35,510 --> 00:28:35,520 the glove itself is of course the skin 1379 00:28:35,520 --> 00:28:38,180 the glove itself is of course the skin is porous it's a piece of titanium sheet 1380 00:28:38,180 --> 00:28:38,190 is porous it's a piece of titanium sheet 1381 00:28:38,190 --> 00:28:41,300 is porous it's a piece of titanium sheet that has 2,500 holes per square inch 1382 00:28:41,300 --> 00:28:41,310 that has 2,500 holes per square inch 1383 00:28:41,310 --> 00:28:43,250 that has 2,500 holes per square inch laser drilled holes per square inch and 1384 00:28:43,250 --> 00:28:43,260 laser drilled holes per square inch and 1385 00:28:43,260 --> 00:28:48,860 laser drilled holes per square inch and then beneath that is a corrugated 1386 00:28:48,860 --> 00:28:48,870 then beneath that is a corrugated 1387 00:28:48,870 --> 00:28:51,410 then beneath that is a corrugated substructure and it's we call it flutes 1388 00:28:51,410 --> 00:28:51,420 substructure and it's we call it flutes 1389 00:28:51,420 --> 00:28:53,510 substructure and it's we call it flutes and basically what it looks like is a 1390 00:28:53,510 --> 00:28:53,520 and basically what it looks like is a 1391 00:28:53,520 --> 00:28:55,220 and basically what it looks like is a piece of cardboard if you will if you 1392 00:28:55,220 --> 00:28:55,230 piece of cardboard if you will if you 1393 00:28:55,230 --> 00:28:57,200 piece of cardboard if you will if you look at the cardboard corrugations 1394 00:28:57,200 --> 00:28:57,210 look at the cardboard corrugations 1395 00:28:57,210 --> 00:28:59,180 look at the cardboard corrugations that's basically what's underneath and 1396 00:28:59,180 --> 00:28:59,190 that's basically what's underneath and 1397 00:28:59,190 --> 00:29:01,490 that's basically what's underneath and we sucked the air span-wise using a 1398 00:29:01,490 --> 00:29:01,500 we sucked the air span-wise using a 1399 00:29:01,500 --> 00:29:03,230 we sucked the air span-wise using a suction pump that's located in the 1400 00:29:03,230 --> 00:29:03,240 suction pump that's located in the 1401 00:29:03,240 --> 00:29:05,420 suction pump that's located in the fuselage of the airplane we sucked the 1402 00:29:05,420 --> 00:29:05,430 fuselage of the airplane we sucked the 1403 00:29:05,430 --> 00:29:06,980 fuselage of the airplane we sucked the air through the hole the porous holes 1404 00:29:06,980 --> 00:29:06,990 air through the hole the porous holes 1405 00:29:06,990 --> 00:29:09,860 air through the hole the porous holes span-wise and then in this case we're 1406 00:29:09,860 --> 00:29:09,870 span-wise and then in this case we're 1407 00:29:09,870 --> 00:29:11,360 span-wise and then in this case we're just dumping it overboard because we 1408 00:29:11,360 --> 00:29:11,370 just dumping it overboard because we 1409 00:29:11,370 --> 00:29:13,580 just dumping it overboard because we have no use for it in a high-speed civil 1410 00:29:13,580 --> 00:29:13,590 have no use for it in a high-speed civil 1411 00:29:13,590 --> 00:29:15,110 have no use for it in a high-speed civil transport there may be some use for that 1412 00:29:15,110 --> 00:29:15,120 transport there may be some use for that 1413 00:29:15,120 --> 00:29:17,960 transport there may be some use for that air somewhere else but not in this case 1414 00:29:17,960 --> 00:29:17,970 air somewhere else but not in this case 1415 00:29:17,970 --> 00:29:19,340 air somewhere else but not in this case we're not worried about total 1416 00:29:19,340 --> 00:29:19,350 we're not worried about total 1417 00:29:19,350 --> 00:29:20,450 we're not worried about total integration we're just worried about 1418 00:29:20,450 --> 00:29:20,460 integration we're just worried about 1419 00:29:20,460 --> 00:29:24,710 integration we're just worried about determining laminar flow requirements so 1420 00:29:24,710 --> 00:29:24,720 determining laminar flow requirements so 1421 00:29:24,720 --> 00:29:27,830 determining laminar flow requirements so when we regulate the suction level what 1422 00:29:27,830 --> 00:29:27,840 when we regulate the suction level what 1423 00:29:27,840 --> 00:29:32,860 when we regulate the suction level what we really do is reduce the suction pump 1424 00:29:32,860 --> 00:29:32,870 we really do is reduce the suction pump 1425 00:29:32,870 --> 00:29:35,960 we really do is reduce the suction pump pumping capability now we haven't done 1426 00:29:35,960 --> 00:29:35,970 pumping capability now we haven't done 1427 00:29:35,970 --> 00:29:37,430 pumping capability now we haven't done any of that yet all we're trying to do 1428 00:29:37,430 --> 00:29:37,440 any of that yet all we're trying to do 1429 00:29:37,440 --> 00:29:39,290 any of that yet all we're trying to do is document how much suction we have 1430 00:29:39,290 --> 00:29:39,300 is document how much suction we have 1431 00:29:39,300 --> 00:29:41,120 is document how much suction we have right now for the results we've gotten 1432 00:29:41,120 --> 00:29:41,130 right now for the results we've gotten 1433 00:29:41,130 --> 00:29:43,340 right now for the results we've gotten right now we have a fast-paced program 1434 00:29:43,340 --> 00:29:43,350 right now we have a fast-paced program 1435 00:29:43,350 --> 00:29:45,740 right now we have a fast-paced program here that we may delete some of the some 1436 00:29:45,740 --> 00:29:45,750 here that we may delete some of the some 1437 00:29:45,750 --> 00:29:49,160 here that we may delete some of the some of the nice-to-have objectives and one 1438 00:29:49,160 --> 00:29:49,170 of the nice-to-have objectives and one 1439 00:29:49,170 --> 00:29:50,750 of the nice-to-have objectives and one of those things is to look at the effect 1440 00:29:50,750 --> 00:29:50,760 of those things is to look at the effect 1441 00:29:50,760 --> 00:29:53,600 of those things is to look at the effect of changing the suction level and we we 1442 00:29:53,600 --> 00:29:53,610 of changing the suction level and we we 1443 00:29:53,610 --> 00:29:55,130 of changing the suction level and we we may run out of time to be able to 1444 00:29:55,130 --> 00:29:55,140 may run out of time to be able to 1445 00:29:55,140 --> 00:29:57,350 may run out of time to be able to do that in which case we'll we'll get 1446 00:29:57,350 --> 00:29:57,360 do that in which case we'll we'll get 1447 00:29:57,360 --> 00:29:59,360 do that in which case we'll we'll get that data on the next experiment that'll 1448 00:29:59,360 --> 00:29:59,370 that data on the next experiment that'll 1449 00:29:59,370 --> 00:30:02,300 that data on the next experiment that'll go on the second airplane