1 00:00:21,360 --> 00:00:23,570 what if an aircraft could fly without 2 00:00:23,570 --> 00:00:23,580 what if an aircraft could fly without 3 00:00:23,580 --> 00:00:26,020 what if an aircraft could fly without the rear vertical stabilizer and rudder 4 00:00:26,020 --> 00:00:26,030 the rear vertical stabilizer and rudder 5 00:00:26,030 --> 00:00:29,690 the rear vertical stabilizer and rudder what would be the advantages better yet 6 00:00:29,690 --> 00:00:29,700 what would be the advantages better yet 7 00:00:29,700 --> 00:00:32,210 what would be the advantages better yet how could it be done the x31 8 00:00:32,210 --> 00:00:32,220 how could it be done the x31 9 00:00:32,220 --> 00:00:34,010 how could it be done the x31 International test team is helping 10 00:00:34,010 --> 00:00:34,020 International test team is helping 11 00:00:34,020 --> 00:00:36,320 International test team is helping explore these possibilities at NASA's 12 00:00:36,320 --> 00:00:36,330 explore these possibilities at NASA's 13 00:00:36,330 --> 00:00:38,090 explore these possibilities at NASA's Dryden Flight Research Center Edwards 14 00:00:38,090 --> 00:00:38,100 Dryden Flight Research Center Edwards 15 00:00:38,100 --> 00:00:41,720 Dryden Flight Research Center Edwards California x31 team members previously 16 00:00:41,720 --> 00:00:41,730 California x31 team members previously 17 00:00:41,730 --> 00:00:44,479 California x31 team members previously demonstrated supersonic quasi tailless 18 00:00:44,479 --> 00:00:44,489 demonstrated supersonic quasi tailless 19 00:00:44,489 --> 00:00:47,930 demonstrated supersonic quasi tailless capabilities in March of 1994 quasi 20 00:00:47,930 --> 00:00:47,940 capabilities in March of 1994 quasi 21 00:00:47,940 --> 00:00:50,420 capabilities in March of 1994 quasi tailless is a state of simulated reduced 22 00:00:50,420 --> 00:00:50,430 tailless is a state of simulated reduced 23 00:00:50,430 --> 00:00:53,060 tailless is a state of simulated reduced tail or tail as flight through 24 00:00:53,060 --> 00:00:53,070 tail or tail as flight through 25 00:00:53,070 --> 00:00:55,069 tail or tail as flight through destabilizing feedback to the ship's 26 00:00:55,069 --> 00:00:55,079 destabilizing feedback to the ship's 27 00:00:55,079 --> 00:00:57,800 destabilizing feedback to the ship's rudder and ailerons closed-loop 28 00:00:57,800 --> 00:00:57,810 rudder and ailerons closed-loop 29 00:00:57,810 --> 00:01:00,260 rudder and ailerons closed-loop stability and control is then completely 30 00:01:00,260 --> 00:01:00,270 stability and control is then completely 31 00:01:00,270 --> 00:01:02,720 stability and control is then completely provided by the x31 s unique thrust 32 00:01:02,720 --> 00:01:02,730 provided by the x31 s unique thrust 33 00:01:02,730 --> 00:01:05,420 provided by the x31 s unique thrust vectoring system this work has captured 34 00:01:05,420 --> 00:01:05,430 vectoring system this work has captured 35 00:01:05,430 --> 00:01:06,980 vectoring system this work has captured the interests of the joint advanced 36 00:01:06,980 --> 00:01:06,990 the interests of the joint advanced 37 00:01:06,990 --> 00:01:09,920 the interests of the joint advanced strike technology or jest program group 38 00:01:09,920 --> 00:01:09,930 strike technology or jest program group 39 00:01:09,930 --> 00:01:12,710 strike technology or jest program group members from the US Navy Marine Corps 40 00:01:12,710 --> 00:01:12,720 members from the US Navy Marine Corps 41 00:01:12,720 --> 00:01:14,330 members from the US Navy Marine Corps and Air Force have joined together 42 00:01:14,330 --> 00:01:14,340 and Air Force have joined together 43 00:01:14,340 --> 00:01:16,460 and Air Force have joined together technology for the next generation of 44 00:01:16,460 --> 00:01:16,470 technology for the next generation of 45 00:01:16,470 --> 00:01:18,800 technology for the next generation of fighter aircraft the benefits are 46 00:01:18,800 --> 00:01:18,810 fighter aircraft the benefits are 47 00:01:18,810 --> 00:01:21,410 fighter aircraft the benefits are decreased weight and drag this will 48 00:01:21,410 --> 00:01:21,420 decreased weight and drag this will 49 00:01:21,420 --> 00:01:23,840 decreased weight and drag this will increase range and make future aircraft 50 00:01:23,840 --> 00:01:23,850 increase range and make future aircraft 51 00:01:23,850 --> 00:01:26,990 increase range and make future aircraft smaller resulting in less expensive more 52 00:01:26,990 --> 00:01:27,000 smaller resulting in less expensive more 53 00:01:27,000 --> 00:01:29,630 smaller resulting in less expensive more affordable strike fighter aircraft the 54 00:01:29,630 --> 00:01:29,640 affordable strike fighter aircraft the 55 00:01:29,640 --> 00:01:32,390 affordable strike fighter aircraft the x31 team at NASA Dryden was chosen 56 00:01:32,390 --> 00:01:32,400 x31 team at NASA Dryden was chosen 57 00:01:32,400 --> 00:01:33,740 x31 team at NASA Dryden was chosen because the x31 58 00:01:33,740 --> 00:01:33,750 because the x31 59 00:01:33,750 --> 00:01:36,260 because the x31 is capable of gathering this data now 60 00:01:36,260 --> 00:01:36,270 is capable of gathering this data now 61 00:01:36,270 --> 00:01:38,560 is capable of gathering this data now not three to five years in the future 62 00:01:38,560 --> 00:01:38,570 not three to five years in the future 63 00:01:38,570 --> 00:01:42,200 not three to five years in the future the x31 test team and jest will conduct 64 00:01:42,200 --> 00:01:42,210 the x31 test team and jest will conduct 65 00:01:42,210 --> 00:01:44,899 the x31 test team and jest will conduct a two phase flight experiment to include 66 00:01:44,899 --> 00:01:44,909 a two phase flight experiment to include 67 00:01:44,909 --> 00:01:47,120 a two phase flight experiment to include simulated power approach and ground 68 00:01:47,120 --> 00:01:47,130 simulated power approach and ground 69 00:01:47,130 --> 00:01:49,550 simulated power approach and ground attack maneuvers at low altitude for 70 00:01:49,550 --> 00:01:49,560 attack maneuvers at low altitude for 71 00:01:49,560 --> 00:01:53,120 attack maneuvers at low altitude for multiple levels of destabilization phase 72 00:01:53,120 --> 00:01:53,130 multiple levels of destabilization phase 73 00:01:53,130 --> 00:01:55,310 multiple levels of destabilization phase one emphasis will be on validating the 74 00:01:55,310 --> 00:01:55,320 one emphasis will be on validating the 75 00:01:55,320 --> 00:01:57,490 one emphasis will be on validating the simulation model for tail thus flight 76 00:01:57,490 --> 00:01:57,500 simulation model for tail thus flight 77 00:01:57,500 --> 00:01:59,960 simulation model for tail thus flight test maneuvers will be conducted at 78 00:01:59,960 --> 00:01:59,970 test maneuvers will be conducted at 79 00:01:59,970 --> 00:02:03,380 test maneuvers will be conducted at 20,000 feet and 8,000 feet and lower in 80 00:02:03,380 --> 00:02:03,390 20,000 feet and 8,000 feet and lower in 81 00:02:03,390 --> 00:02:05,270 20,000 feet and 8,000 feet and lower in both cruise and power approach 82 00:02:05,270 --> 00:02:05,280 both cruise and power approach 83 00:02:05,280 --> 00:02:07,580 both cruise and power approach configurations at Mach numbers point 84 00:02:07,580 --> 00:02:07,590 configurations at Mach numbers point 85 00:02:07,590 --> 00:02:11,210 configurations at Mach numbers point three four point six and point eight the 86 00:02:11,210 --> 00:02:11,220 three four point six and point eight the 87 00:02:11,220 --> 00:02:13,190 three four point six and point eight the levels of D augmented stability from the 88 00:02:13,190 --> 00:02:13,200 levels of D augmented stability from the 89 00:02:13,200 --> 00:02:15,380 levels of D augmented stability from the rudder and ailerons planned to be varied 90 00:02:15,380 --> 00:02:15,390 rudder and ailerons planned to be varied 91 00:02:15,390 --> 00:02:18,740 rudder and ailerons planned to be varied a minimum of between 100 percent tail 92 00:02:18,740 --> 00:02:18,750 a minimum of between 100 percent tail 93 00:02:18,750 --> 00:02:21,800 a minimum of between 100 percent tail off to full tail during this test phase 94 00:02:21,800 --> 00:02:21,810 off to full tail during this test phase 95 00:02:21,810 --> 00:02:25,190 off to full tail during this test phase of roughly 10 to 12 sorties the power 96 00:02:25,190 --> 00:02:25,200 of roughly 10 to 12 sorties the power 97 00:02:25,200 --> 00:02:27,710 of roughly 10 to 12 sorties the power approach tailless flight was initiated 98 00:02:27,710 --> 00:02:27,720 approach tailless flight was initiated 99 00:02:27,720 --> 00:02:30,610 approach tailless flight was initiated by the IT o test team September 1st 100 00:02:30,610 --> 00:02:30,620 by the IT o test team September 1st 101 00:02:30,620 --> 00:02:33,140 by the IT o test team September 1st phase two testing will demonstrate the 102 00:02:33,140 --> 00:02:33,150 phase two testing will demonstrate the 103 00:02:33,150 --> 00:02:34,850 phase two testing will demonstrate the operational viability 104 00:02:34,850 --> 00:02:34,860 operational viability 105 00:02:34,860 --> 00:02:36,920 operational viability of tailless flight through quasi 106 00:02:36,920 --> 00:02:36,930 of tailless flight through quasi 107 00:02:36,930 --> 00:02:39,980 of tailless flight through quasi tailless testing simulated ground attack 108 00:02:39,980 --> 00:02:39,990 tailless testing simulated ground attack 109 00:02:39,990 --> 00:02:42,140 tailless testing simulated ground attack maneuvers and precision approaches will 110 00:02:42,140 --> 00:02:42,150 maneuvers and precision approaches will 111 00:02:42,150 --> 00:02:44,330 maneuvers and precision approaches will be flown the objective will be to 112 00:02:44,330 --> 00:02:44,340 be flown the objective will be to 113 00:02:44,340 --> 00:02:47,090 be flown the objective will be to provide flight validated data supporting 114 00:02:47,090 --> 00:02:47,100 provide flight validated data supporting 115 00:02:47,100 --> 00:02:50,000 provide flight validated data supporting future tailless designs eight to ten 116 00:02:50,000 --> 00:02:50,010 future tailless designs eight to ten 117 00:02:50,010 --> 00:02:51,800 future tailless designs eight to ten test flights under these conditions 118 00:02:51,800 --> 00:02:51,810 test flights under these conditions 119 00:02:51,810 --> 00:02:54,770 test flights under these conditions should meet those objectives upon 120 00:02:54,770 --> 00:02:54,780 should meet those objectives upon 121 00:02:54,780 --> 00:02:57,230 should meet those objectives upon completion the x31 test team will 122 00:02:57,230 --> 00:02:57,240 completion the x31 test team will 123 00:02:57,240 --> 00:02:59,510 completion the x31 test team will analyze the test data and provide a 124 00:02:59,510 --> 00:02:59,520 analyze the test data and provide a 125 00:02:59,520 --> 00:03:01,699 analyze the test data and provide a final report and briefing of their 126 00:03:01,699 --> 00:03:01,709 final report and briefing of their 127 00:03:01,709 --> 00:03:03,770 final report and briefing of their accomplishments in quasi tailless 128 00:03:03,770 --> 00:03:03,780 accomplishments in quasi tailless 129 00:03:03,780 --> 00:03:06,500 accomplishments in quasi tailless research to the Jass program managers in 130 00:03:06,500 --> 00:03:06,510 research to the Jass program managers in 131 00:03:06,510 --> 00:03:09,710 research to the Jass program managers in washington d.c the IT o test team at 132 00:03:09,710 --> 00:03:09,720 washington d.c the IT o test team at 133 00:03:09,720 --> 00:03:11,840 washington d.c the IT o test team at nasa dryden continues to plan for a 134 00:03:11,840 --> 00:03:11,850 nasa dryden continues to plan for a 135 00:03:11,850 --> 00:03:14,960 nasa dryden continues to plan for a reduced tail tailless x31 flight 136 00:03:14,960 --> 00:03:14,970 reduced tail tailless x31 flight 137 00:03:14,970 --> 00:04:10,740 reduced tail tailless x31 flight programme during calendar year 1995 138 00:04:10,740 --> 00:04:10,750 139 00:04:10,750 --> 00:04:13,320 the x31 international test team 140 00:04:13,320 --> 00:04:13,330 the x31 international test team 141 00:04:13,330 --> 00:04:16,020 the x31 international test team demonstrated supersonic quasi tailless 142 00:04:16,020 --> 00:04:16,030 demonstrated supersonic quasi tailless 143 00:04:16,030 --> 00:04:19,229 demonstrated supersonic quasi tailless capabilities in march 1994 quasi 144 00:04:19,229 --> 00:04:19,239 capabilities in march 1994 quasi 145 00:04:19,239 --> 00:04:21,660 capabilities in march 1994 quasi tailless is a state of simulated reduced 146 00:04:21,660 --> 00:04:21,670 tailless is a state of simulated reduced 147 00:04:21,670 --> 00:04:24,110 tailless is a state of simulated reduced tail or tail thus flight through 148 00:04:24,110 --> 00:04:24,120 tail or tail thus flight through 149 00:04:24,120 --> 00:04:26,190 tail or tail thus flight through destabilizing feedback to the ship's 150 00:04:26,190 --> 00:04:26,200 destabilizing feedback to the ship's 151 00:04:26,200 --> 00:04:28,710 destabilizing feedback to the ship's rudder and ailerons at this point the 152 00:04:28,710 --> 00:04:28,720 rudder and ailerons at this point the 153 00:04:28,720 --> 00:04:31,050 rudder and ailerons at this point the x31 s thrust vectoring system provides 154 00:04:31,050 --> 00:04:31,060 x31 s thrust vectoring system provides 155 00:04:31,060 --> 00:04:33,590 x31 s thrust vectoring system provides closed-loop stability and control 156 00:04:33,590 --> 00:04:33,600 closed-loop stability and control 157 00:04:33,600 --> 00:04:36,270 closed-loop stability and control tailless flight would decrease aircraft 158 00:04:36,270 --> 00:04:36,280 tailless flight would decrease aircraft 159 00:04:36,280 --> 00:04:38,610 tailless flight would decrease aircraft weight and drag increasing their range 160 00:04:38,610 --> 00:04:38,620 weight and drag increasing their range 161 00:04:38,620 --> 00:04:41,220 weight and drag increasing their range this would lead to smaller aircraft in 162 00:04:41,220 --> 00:04:41,230 this would lead to smaller aircraft in 163 00:04:41,230 --> 00:04:43,500 this would lead to smaller aircraft in the future resulting in less expensive 164 00:04:43,500 --> 00:04:43,510 the future resulting in less expensive 165 00:04:43,510 --> 00:04:45,980 the future resulting in less expensive more affordable strike fighter aircraft 166 00:04:45,980 --> 00:04:45,990 more affordable strike fighter aircraft 167 00:04:45,990 --> 00:04:49,140 more affordable strike fighter aircraft the x31 project at nasa dryden was 168 00:04:49,140 --> 00:04:49,150 the x31 project at nasa dryden was 169 00:04:49,150 --> 00:04:51,330 the x31 project at nasa dryden was chosen because the aircraft can provide 170 00:04:51,330 --> 00:04:51,340 chosen because the aircraft can provide 171 00:04:51,340 --> 00:04:55,020 chosen because the aircraft can provide immediate test results the x31 test team 172 00:04:55,020 --> 00:04:55,030 immediate test results the x31 test team 173 00:04:55,030 --> 00:04:57,210 immediate test results the x31 test team and the joint advanced strike technology 174 00:04:57,210 --> 00:04:57,220 and the joint advanced strike technology 175 00:04:57,220 --> 00:04:59,430 and the joint advanced strike technology team from the US Air Force Navy and 176 00:04:59,430 --> 00:04:59,440 team from the US Air Force Navy and 177 00:04:59,440 --> 00:05:01,620 team from the US Air Force Navy and Marine Corps will conduct a two phased 178 00:05:01,620 --> 00:05:01,630 Marine Corps will conduct a two phased 179 00:05:01,630 --> 00:05:03,770 Marine Corps will conduct a two phased flight experiment to gather this data 180 00:05:03,770 --> 00:05:03,780 flight experiment to gather this data 181 00:05:03,780 --> 00:05:06,750 flight experiment to gather this data phase one emphasis will be on validating 182 00:05:06,750 --> 00:05:06,760 phase one emphasis will be on validating 183 00:05:06,760 --> 00:05:09,409 phase one emphasis will be on validating the simulation model for tailless flight 184 00:05:09,409 --> 00:05:09,419 the simulation model for tailless flight 185 00:05:09,419 --> 00:05:11,790 the simulation model for tailless flight test maneuvers will be conducted at 186 00:05:11,790 --> 00:05:11,800 test maneuvers will be conducted at 187 00:05:11,800 --> 00:05:15,659 test maneuvers will be conducted at 20,000 and 8,000 feet and lower in both 188 00:05:15,659 --> 00:05:15,669 20,000 and 8,000 feet and lower in both 189 00:05:15,669 --> 00:05:18,240 20,000 and 8,000 feet and lower in both cruise and power approach configurations 190 00:05:18,240 --> 00:05:18,250 cruise and power approach configurations 191 00:05:18,250 --> 00:05:22,159 cruise and power approach configurations this test phase began September 1st 1994 192 00:05:22,159 --> 00:05:22,169 this test phase began September 1st 1994 193 00:05:22,169 --> 00:05:24,840 this test phase began September 1st 1994 phase two testing will demonstrate the 194 00:05:24,840 --> 00:05:24,850 phase two testing will demonstrate the 195 00:05:24,850 --> 00:05:27,570 phase two testing will demonstrate the operational viability of tailless flight 196 00:05:27,570 --> 00:05:27,580 operational viability of tailless flight 197 00:05:27,580 --> 00:05:30,600 operational viability of tailless flight through quasi Taylors testing simulated 198 00:05:30,600 --> 00:05:30,610 through quasi Taylors testing simulated 199 00:05:30,610 --> 00:05:32,190 through quasi Taylors testing simulated ground attack maneuvers and precision 200 00:05:32,190 --> 00:05:32,200 ground attack maneuvers and precision 201 00:05:32,200 --> 00:05:34,800 ground attack maneuvers and precision approaches will be flown upon completion 202 00:05:34,800 --> 00:05:34,810 approaches will be flown upon completion 203 00:05:34,810 --> 00:05:37,290 approaches will be flown upon completion the x31 test team will analyze the data 204 00:05:37,290 --> 00:05:37,300 the x31 test team will analyze the data 205 00:05:37,300 --> 00:05:39,719 the x31 test team will analyze the data and provide a final report to the Jazz 206 00:05:39,719 --> 00:05:39,729 and provide a final report to the Jazz 207 00:05:39,729 --> 00:05:42,930 and provide a final report to the Jazz program managers in Washington DC from 208 00:05:42,930 --> 00:05:42,940 program managers in Washington DC from 209 00:05:42,940 --> 00:05:44,340 program managers in Washington DC from NASA's Dryden Flight Research Center 210 00:05:44,340 --> 00:05:44,350 NASA's Dryden Flight Research Center 211 00:05:44,350 --> 00:05:48,690 NASA's Dryden Flight Research Center Edwards California I'm Roger Williams