1 00:00:04,790 --> 00:00:07,579 NASA is the national aeronautics and 2 00:00:07,579 --> 00:00:07,589 NASA is the national aeronautics and 3 00:00:07,589 --> 00:00:10,400 NASA is the national aeronautics and space administration nasa has many 4 00:00:10,400 --> 00:00:10,410 space administration nasa has many 5 00:00:10,410 --> 00:00:12,350 space administration nasa has many facilities around the United States and 6 00:00:12,350 --> 00:00:12,360 facilities around the United States and 7 00:00:12,360 --> 00:00:14,600 facilities around the United States and the people working here have a variety 8 00:00:14,600 --> 00:00:14,610 the people working here have a variety 9 00:00:14,610 --> 00:00:17,450 the people working here have a variety of jobs to do some work in aeronautics 10 00:00:17,450 --> 00:00:17,460 of jobs to do some work in aeronautics 11 00:00:17,460 --> 00:00:20,240 of jobs to do some work in aeronautics others concentrate on improving aircraft 12 00:00:20,240 --> 00:00:20,250 others concentrate on improving aircraft 13 00:00:20,250 --> 00:00:22,609 others concentrate on improving aircraft engines and still others are involved 14 00:00:22,609 --> 00:00:22,619 engines and still others are involved 15 00:00:22,619 --> 00:00:24,439 engines and still others are involved with a space shuttle program and Space 16 00:00:24,439 --> 00:00:24,449 with a space shuttle program and Space 17 00:00:24,449 --> 00:00:27,349 with a space shuttle program and Space Flight at all the center's many 18 00:00:27,349 --> 00:00:27,359 Flight at all the center's many 19 00:00:27,359 --> 00:00:33,380 Flight at all the center's many specialized skills are needed the Dryden 20 00:00:33,380 --> 00:00:33,390 specialized skills are needed the Dryden 21 00:00:33,390 --> 00:00:35,479 specialized skills are needed the Dryden Flight Research Center is NASA's primary 22 00:00:35,479 --> 00:00:35,489 Flight Research Center is NASA's primary 23 00:00:35,489 --> 00:00:37,819 Flight Research Center is NASA's primary installation for flight research we're 24 00:00:37,819 --> 00:00:37,829 installation for flight research we're 25 00:00:37,829 --> 00:00:40,130 installation for flight research we're located 90 miles north of Los Angeles on 26 00:00:40,130 --> 00:00:40,140 located 90 miles north of Los Angeles on 27 00:00:40,140 --> 00:00:41,510 located 90 miles north of Los Angeles on the western edge of the mojave desert 28 00:00:41,510 --> 00:00:41,520 the western edge of the mojave desert 29 00:00:41,520 --> 00:00:44,060 the western edge of the mojave desert the desert skies are clear and the 30 00:00:44,060 --> 00:00:44,070 the desert skies are clear and the 31 00:00:44,070 --> 00:00:45,319 the desert skies are clear and the weather is good enough for year-round 32 00:00:45,319 --> 00:00:45,329 weather is good enough for year-round 33 00:00:45,329 --> 00:00:48,319 weather is good enough for year-round flight testing also from dryden we have 34 00:00:48,319 --> 00:00:48,329 flight testing also from dryden we have 35 00:00:48,329 --> 00:00:50,630 flight testing also from dryden we have access to over 20,000 square miles of 36 00:00:50,630 --> 00:00:50,640 access to over 20,000 square miles of 37 00:00:50,640 --> 00:00:54,080 access to over 20,000 square miles of airspace for research flying we share 38 00:00:54,080 --> 00:00:54,090 airspace for research flying we share 39 00:00:54,090 --> 00:00:56,119 airspace for research flying we share the same dry lake bed surface and hard 40 00:00:56,119 --> 00:00:56,129 the same dry lake bed surface and hard 41 00:00:56,129 --> 00:00:57,830 the same dry lake bed surface and hard runway complex with Edwards Air Force 42 00:00:57,830 --> 00:00:57,840 runway complex with Edwards Air Force 43 00:00:57,840 --> 00:01:00,229 runway complex with Edwards Air Force Base these are the same runways our 44 00:01:00,229 --> 00:01:00,239 Base these are the same runways our 45 00:01:00,239 --> 00:01:02,180 Base these are the same runways our space shuttle fleet uses when they land 46 00:01:02,180 --> 00:01:02,190 space shuttle fleet uses when they land 47 00:01:02,190 --> 00:01:04,939 space shuttle fleet uses when they land here flight testing programs began at 48 00:01:04,939 --> 00:01:04,949 here flight testing programs began at 49 00:01:04,949 --> 00:01:07,280 here flight testing programs began at Dryden in the 1940s some of these 50 00:01:07,280 --> 00:01:07,290 Dryden in the 1940s some of these 51 00:01:07,290 --> 00:01:09,289 Dryden in the 1940s some of these vehicles may look a bit silly by today's 52 00:01:09,289 --> 00:01:09,299 vehicles may look a bit silly by today's 53 00:01:09,299 --> 00:01:11,450 vehicles may look a bit silly by today's standards but the many risks taken back 54 00:01:11,450 --> 00:01:11,460 standards but the many risks taken back 55 00:01:11,460 --> 00:01:13,490 standards but the many risks taken back then helped shape flight as we know it 56 00:01:13,490 --> 00:01:13,500 then helped shape flight as we know it 57 00:01:13,500 --> 00:01:18,200 then helped shape flight as we know it today the early X or experimental series 58 00:01:18,200 --> 00:01:18,210 today the early X or experimental series 59 00:01:18,210 --> 00:01:20,120 today the early X or experimental series proved that man could fly faster than 60 00:01:20,120 --> 00:01:20,130 proved that man could fly faster than 61 00:01:20,130 --> 00:01:22,999 proved that man could fly faster than the speed of sound test with the x-15 in 62 00:01:22,999 --> 00:01:23,009 the speed of sound test with the x-15 in 63 00:01:23,009 --> 00:01:25,010 the speed of sound test with the x-15 in the 1950s and 60s helped the United 64 00:01:25,010 --> 00:01:25,020 the 1950s and 60s helped the United 65 00:01:25,020 --> 00:01:29,330 the 1950s and 60s helped the United States develop a manned spacecraft this 66 00:01:29,330 --> 00:01:29,340 States develop a manned spacecraft this 67 00:01:29,340 --> 00:01:32,179 States develop a manned spacecraft this funny-looking bird was the xb-70 during 68 00:01:32,179 --> 00:01:32,189 funny-looking bird was the xb-70 during 69 00:01:32,189 --> 00:01:34,490 funny-looking bird was the xb-70 during its flights over Dryden NASA discovered 70 00:01:34,490 --> 00:01:34,500 its flights over Dryden NASA discovered 71 00:01:34,500 --> 00:01:36,499 its flights over Dryden NASA discovered some things that made supersonic flight 72 00:01:36,499 --> 00:01:36,509 some things that made supersonic flight 73 00:01:36,509 --> 00:01:44,210 some things that made supersonic flight with large aircraft more practical quite 74 00:01:44,210 --> 00:01:44,220 with large aircraft more practical quite 75 00:01:44,220 --> 00:01:45,980 with large aircraft more practical quite a few wingless vehicles were pulled 76 00:01:45,980 --> 00:01:45,990 a few wingless vehicles were pulled 77 00:01:45,990 --> 00:01:48,050 a few wingless vehicles were pulled through the air or flew from dryden 78 00:01:48,050 --> 00:01:48,060 through the air or flew from dryden 79 00:01:48,060 --> 00:01:51,260 through the air or flew from dryden during the 1960s and 70s NASA was 80 00:01:51,260 --> 00:01:51,270 during the 1960s and 70s NASA was 81 00:01:51,270 --> 00:01:53,210 during the 1960s and 70s NASA was looking for ways to prove spaceflight 82 00:01:53,210 --> 00:01:53,220 looking for ways to prove spaceflight 83 00:01:53,220 --> 00:01:55,280 looking for ways to prove spaceflight was possible with a reusable vehicle 84 00:01:55,280 --> 00:01:55,290 was possible with a reusable vehicle 85 00:01:55,290 --> 00:01:57,859 was possible with a reusable vehicle this research with the lifting bodies 86 00:01:57,859 --> 00:01:57,869 this research with the lifting bodies 87 00:01:57,869 --> 00:02:03,219 this research with the lifting bodies led to today's space shuttle fleet 88 00:02:03,219 --> 00:02:03,229 89 00:02:03,229 --> 00:02:05,870 before all-electric flight control 90 00:02:05,870 --> 00:02:05,880 before all-electric flight control 91 00:02:05,880 --> 00:02:08,180 before all-electric flight control systems and fly-by-wire technology were 92 00:02:08,180 --> 00:02:08,190 systems and fly-by-wire technology were 93 00:02:08,190 --> 00:02:10,400 systems and fly-by-wire technology were put into today's aircraft they were much 94 00:02:10,400 --> 00:02:10,410 put into today's aircraft they were much 95 00:02:10,410 --> 00:02:12,260 put into today's aircraft they were much heavier and slower 96 00:02:12,260 --> 00:02:12,270 heavier and slower 97 00:02:12,270 --> 00:02:14,210 heavier and slower that's because mechanical rods and 98 00:02:14,210 --> 00:02:14,220 that's because mechanical rods and 99 00:02:14,220 --> 00:02:16,340 that's because mechanical rods and connectors used to fly the aircraft were 100 00:02:16,340 --> 00:02:16,350 connectors used to fly the aircraft were 101 00:02:16,350 --> 00:02:19,010 connectors used to fly the aircraft were made of heavier materials now computers 102 00:02:19,010 --> 00:02:19,020 made of heavier materials now computers 103 00:02:19,020 --> 00:02:21,320 made of heavier materials now computers could relay the pilot instructions to 104 00:02:21,320 --> 00:02:21,330 could relay the pilot instructions to 105 00:02:21,330 --> 00:02:23,360 could relay the pilot instructions to various parts of the aircraft in order 106 00:02:23,360 --> 00:02:23,370 various parts of the aircraft in order 107 00:02:23,370 --> 00:02:26,180 various parts of the aircraft in order to maintain flight the supercritical 108 00:02:26,180 --> 00:02:26,190 to maintain flight the supercritical 109 00:02:26,190 --> 00:02:28,520 to maintain flight the supercritical wing concept was also tested at NASA 110 00:02:28,520 --> 00:02:28,530 wing concept was also tested at NASA 111 00:02:28,530 --> 00:02:30,530 wing concept was also tested at NASA Dryden it cuts through the air better 112 00:02:30,530 --> 00:02:30,540 Dryden it cuts through the air better 113 00:02:30,540 --> 00:02:32,960 Dryden it cuts through the air better helping aircraft crews faster with less 114 00:02:32,960 --> 00:02:32,970 helping aircraft crews faster with less 115 00:02:32,970 --> 00:02:41,360 helping aircraft crews faster with less fuel tests today at Dryden include 116 00:02:41,360 --> 00:02:41,370 fuel tests today at Dryden include 117 00:02:41,370 --> 00:02:43,160 fuel tests today at Dryden include research with the f-18 high alpha 118 00:02:43,160 --> 00:02:43,170 research with the f-18 high alpha 119 00:02:43,170 --> 00:02:53,950 research with the f-18 high alpha research vehicle ex31 sr-71 blackbird 120 00:02:53,950 --> 00:02:53,960 research vehicle ex31 sr-71 blackbird 121 00:02:53,960 --> 00:02:57,100 research vehicle ex31 sr-71 blackbird f15 digital systems research aircraft 122 00:02:57,100 --> 00:02:57,110 f15 digital systems research aircraft 123 00:02:57,110 --> 00:03:00,170 f15 digital systems research aircraft f-16 XL laminar air flow studies and 124 00:03:00,170 --> 00:03:00,180 f-16 XL laminar air flow studies and 125 00:03:00,180 --> 00:03:02,450 f-16 XL laminar air flow studies and upper atmospheric studies with the 126 00:03:02,450 --> 00:03:02,460 upper atmospheric studies with the 127 00:03:02,460 --> 00:03:06,530 upper atmospheric studies with the remotely piloted Perseus the people 128 00:03:06,530 --> 00:03:06,540 remotely piloted Perseus the people 129 00:03:06,540 --> 00:03:08,180 remotely piloted Perseus the people working here need to know many things 130 00:03:08,180 --> 00:03:08,190 working here need to know many things 131 00:03:08,190 --> 00:03:11,350 working here need to know many things like math science and computer skills 132 00:03:11,350 --> 00:03:11,360 like math science and computer skills 133 00:03:11,360 --> 00:03:13,970 like math science and computer skills communication skills are important as 134 00:03:13,970 --> 00:03:13,980 communication skills are important as 135 00:03:13,980 --> 00:03:16,340 communication skills are important as well we need to be able to speak clearly 136 00:03:16,340 --> 00:03:16,350 well we need to be able to speak clearly 137 00:03:16,350 --> 00:03:18,650 well we need to be able to speak clearly and to be able to understand our fellow 138 00:03:18,650 --> 00:03:18,660 and to be able to understand our fellow 139 00:03:18,660 --> 00:03:21,590 and to be able to understand our fellow workers now let's take a look at some of 140 00:03:21,590 --> 00:03:21,600 workers now let's take a look at some of 141 00:03:21,600 --> 00:03:23,390 workers now let's take a look at some of the people and the labs and shops here 142 00:03:23,390 --> 00:03:23,400 the people and the labs and shops here 143 00:03:23,400 --> 00:03:25,240 the people and the labs and shops here at the Dryden Flight Research Center 144 00:03:25,240 --> 00:03:25,250 at the Dryden Flight Research Center 145 00:03:25,250 --> 00:03:28,160 at the Dryden Flight Research Center this is the thermal structures lab where 146 00:03:28,160 --> 00:03:28,170 this is the thermal structures lab where 147 00:03:28,170 --> 00:03:30,260 this is the thermal structures lab where people test all aspects of aircraft 148 00:03:30,260 --> 00:03:30,270 people test all aspects of aircraft 149 00:03:30,270 --> 00:03:32,990 people test all aspects of aircraft parts researchers would rather see what 150 00:03:32,990 --> 00:03:33,000 parts researchers would rather see what 151 00:03:33,000 --> 00:03:35,420 parts researchers would rather see what affects heat and stress have on aircraft 152 00:03:35,420 --> 00:03:35,430 affects heat and stress have on aircraft 153 00:03:35,430 --> 00:03:37,000 affects heat and stress have on aircraft components in a controlled environment 154 00:03:37,000 --> 00:03:37,010 components in a controlled environment 155 00:03:37,010 --> 00:03:41,690 components in a controlled environment versus in flight also at Dryden we make 156 00:03:41,690 --> 00:03:41,700 versus in flight also at Dryden we make 157 00:03:41,700 --> 00:03:44,590 versus in flight also at Dryden we make finally machined aircraft parts in 158 00:03:44,590 --> 00:03:44,600 finally machined aircraft parts in 159 00:03:44,600 --> 00:03:47,150 finally machined aircraft parts in another section people build and install 160 00:03:47,150 --> 00:03:47,160 another section people build and install 161 00:03:47,160 --> 00:03:49,250 another section people build and install sensitive electronics equipment and 162 00:03:49,250 --> 00:03:49,260 sensitive electronics equipment and 163 00:03:49,260 --> 00:03:52,940 sensitive electronics equipment and other aircraft parts we maintain 164 00:03:52,940 --> 00:03:52,950 other aircraft parts we maintain 165 00:03:52,950 --> 00:03:55,190 other aircraft parts we maintain aircraft communications and navigational 166 00:03:55,190 --> 00:03:55,200 aircraft communications and navigational 167 00:03:55,200 --> 00:03:58,580 aircraft communications and navigational equipment technicians in the 168 00:03:58,580 --> 00:03:58,590 equipment technicians in the 169 00:03:58,590 --> 00:04:00,380 equipment technicians in the environmental testing lab run the 170 00:04:00,380 --> 00:04:00,390 environmental testing lab run the 171 00:04:00,390 --> 00:04:01,760 environmental testing lab run the equipment through simulated flight 172 00:04:01,760 --> 00:04:01,770 equipment through simulated flight 173 00:04:01,770 --> 00:04:04,190 equipment through simulated flight conditions to ensure it's properly 174 00:04:04,190 --> 00:04:04,200 conditions to ensure it's properly 175 00:04:04,200 --> 00:04:08,060 conditions to ensure it's properly working before it flies here is our flow 176 00:04:08,060 --> 00:04:08,070 working before it flies here is our flow 177 00:04:08,070 --> 00:04:11,300 working before it flies here is our flow visualization lab or water tunnel model 178 00:04:11,300 --> 00:04:11,310 visualization lab or water tunnel model 179 00:04:11,310 --> 00:04:13,190 visualization lab or water tunnel model airplanes are fitted with dive ends 180 00:04:13,190 --> 00:04:13,200 airplanes are fitted with dive ends 181 00:04:13,200 --> 00:04:15,380 airplanes are fitted with dive ends which provide engineers with a way to 182 00:04:15,380 --> 00:04:15,390 which provide engineers with a way to 183 00:04:15,390 --> 00:04:17,150 which provide engineers with a way to see how the dye flows around the 184 00:04:17,150 --> 00:04:17,160 see how the dye flows around the 185 00:04:17,160 --> 00:04:20,210 see how the dye flows around the aircraft this flowing dye is similar to 186 00:04:20,210 --> 00:04:20,220 aircraft this flowing dye is similar to 187 00:04:20,220 --> 00:04:22,430 aircraft this flowing dye is similar to air flowing around the aircraft in 188 00:04:22,430 --> 00:04:22,440 air flowing around the aircraft in 189 00:04:22,440 --> 00:04:25,190 air flowing around the aircraft in flight adjustments made to the model can 190 00:04:25,190 --> 00:04:25,200 flight adjustments made to the model can 191 00:04:25,200 --> 00:04:26,070 flight adjustments made to the model can also apply to 192 00:04:26,070 --> 00:04:26,080 also apply to 193 00:04:26,080 --> 00:04:28,170 also apply to the aircraft and help improve flight 194 00:04:28,170 --> 00:04:28,180 the aircraft and help improve flight 195 00:04:28,180 --> 00:04:30,659 the aircraft and help improve flight this is much less expensive than taking 196 00:04:30,659 --> 00:04:30,669 this is much less expensive than taking 197 00:04:30,669 --> 00:04:32,730 this is much less expensive than taking the aircraft into the wind tunnel for 198 00:04:32,730 --> 00:04:32,740 the aircraft into the wind tunnel for 199 00:04:32,740 --> 00:04:36,179 the aircraft into the wind tunnel for testing highly-skilled computer 200 00:04:36,179 --> 00:04:36,189 testing highly-skilled computer 201 00:04:36,189 --> 00:04:37,830 testing highly-skilled computer technicians work in our data analysis 202 00:04:37,830 --> 00:04:37,840 technicians work in our data analysis 203 00:04:37,840 --> 00:04:40,619 technicians work in our data analysis facility here's where flight research 204 00:04:40,619 --> 00:04:40,629 facility here's where flight research 205 00:04:40,629 --> 00:04:43,170 facility here's where flight research data is processed and valuable flight 206 00:04:43,170 --> 00:04:43,180 data is processed and valuable flight 207 00:04:43,180 --> 00:04:45,119 data is processed and valuable flight information is shared with other NASA 208 00:04:45,119 --> 00:04:45,129 information is shared with other NASA 209 00:04:45,129 --> 00:04:46,770 information is shared with other NASA centers and test sites around the 210 00:04:46,770 --> 00:04:46,780 centers and test sites around the 211 00:04:46,780 --> 00:04:49,260 centers and test sites around the country the people working in our 212 00:04:49,260 --> 00:04:49,270 country the people working in our 213 00:04:49,270 --> 00:04:51,600 country the people working in our simulation labs need a wide variety of 214 00:04:51,600 --> 00:04:51,610 simulation labs need a wide variety of 215 00:04:51,610 --> 00:04:53,869 simulation labs need a wide variety of highly technical and computer skills 216 00:04:53,869 --> 00:04:53,879 highly technical and computer skills 217 00:04:53,879 --> 00:04:57,119 highly technical and computer skills aircraft flight simulators and computers 218 00:04:57,119 --> 00:04:57,129 aircraft flight simulators and computers 219 00:04:57,129 --> 00:04:59,730 aircraft flight simulators and computers create situations that are helpful for 220 00:04:59,730 --> 00:04:59,740 create situations that are helpful for 221 00:04:59,740 --> 00:05:01,800 create situations that are helpful for predicting how the aircraft will perform 222 00:05:01,800 --> 00:05:01,810 predicting how the aircraft will perform 223 00:05:01,810 --> 00:05:05,279 predicting how the aircraft will perform in flight our specially equipped control 224 00:05:05,279 --> 00:05:05,289 in flight our specially equipped control 225 00:05:05,289 --> 00:05:07,920 in flight our specially equipped control rooms are manned by experts who monitor 226 00:05:07,920 --> 00:05:07,930 rooms are manned by experts who monitor 227 00:05:07,930 --> 00:05:10,110 rooms are manned by experts who monitor various research gathering missions from 228 00:05:10,110 --> 00:05:10,120 various research gathering missions from 229 00:05:10,120 --> 00:05:14,520 various research gathering missions from the ground Dryden's life support team 230 00:05:14,520 --> 00:05:14,530 the ground Dryden's life support team 231 00:05:14,530 --> 00:05:17,939 the ground Dryden's life support team keeps flight suits parachutes oxygen 232 00:05:17,939 --> 00:05:17,949 keeps flight suits parachutes oxygen 233 00:05:17,949 --> 00:05:20,010 keeps flight suits parachutes oxygen supplies and other necessary equipment 234 00:05:20,010 --> 00:05:20,020 supplies and other necessary equipment 235 00:05:20,020 --> 00:05:22,140 supplies and other necessary equipment ready for our flight crews to conduct 236 00:05:22,140 --> 00:05:22,150 ready for our flight crews to conduct 237 00:05:22,150 --> 00:05:25,950 ready for our flight crews to conduct their research now as you can see NASA 238 00:05:25,950 --> 00:05:25,960 their research now as you can see NASA 239 00:05:25,960 --> 00:05:28,110 their research now as you can see NASA has helped shape aviation down through 240 00:05:28,110 --> 00:05:28,120 has helped shape aviation down through 241 00:05:28,120 --> 00:05:30,360 has helped shape aviation down through the years in many ways we have sent 242 00:05:30,360 --> 00:05:30,370 the years in many ways we have sent 243 00:05:30,370 --> 00:05:32,999 the years in many ways we have sent people and machines into space to the 244 00:05:32,999 --> 00:05:33,009 people and machines into space to the 245 00:05:33,009 --> 00:05:35,790 people and machines into space to the moon and are exploring other planets we 246 00:05:35,790 --> 00:05:35,800 moon and are exploring other planets we 247 00:05:35,800 --> 00:05:37,769 moon and are exploring other planets we have satellites circling the globe that 248 00:05:37,769 --> 00:05:37,779 have satellites circling the globe that 249 00:05:37,779 --> 00:05:39,209 have satellites circling the globe that help people better predict the weather 250 00:05:39,209 --> 00:05:39,219 help people better predict the weather 251 00:05:39,219 --> 00:05:41,730 help people better predict the weather and information gathered from some of 252 00:05:41,730 --> 00:05:41,740 and information gathered from some of 253 00:05:41,740 --> 00:05:44,129 and information gathered from some of NASA's computer simulations has even 254 00:05:44,129 --> 00:05:44,139 NASA's computer simulations has even 255 00:05:44,139 --> 00:05:45,719 NASA's computer simulations has even been used to make artificial heart 256 00:05:45,719 --> 00:05:45,729 been used to make artificial heart 257 00:05:45,729 --> 00:05:48,240 been used to make artificial heart valves the Dryden Flight Research Center 258 00:05:48,240 --> 00:05:48,250 valves the Dryden Flight Research Center 259 00:05:48,250 --> 00:05:50,670 valves the Dryden Flight Research Center is a vital component in the overall NASA 260 00:05:50,670 --> 00:05:50,680 is a vital component in the overall NASA 261 00:05:50,680 --> 00:05:53,100 is a vital component in the overall NASA picture what is being flight tested at 262 00:05:53,100 --> 00:05:53,110 picture what is being flight tested at 263 00:05:53,110 --> 00:05:55,439 picture what is being flight tested at Dryden today will most likely have an 264 00:05:55,439 --> 00:05:55,449 Dryden today will most likely have an 265 00:05:55,449 --> 00:05:57,769 Dryden today will most likely have an impact on tomorrow's air and spacecraft 266 00:05:57,769 --> 00:05:57,779 impact on tomorrow's air and spacecraft 267 00:05:57,779 --> 00:06:01,320 impact on tomorrow's air and spacecraft how they'll look how they'll fly and how 268 00:06:01,320 --> 00:06:01,330 how they'll look how they'll fly and how 269 00:06:01,330 --> 00:06:04,139 how they'll look how they'll fly and how safe they'll be