1 00:00:16,000 --> 00:00:18,710 this is time lapse photography of a 2 00:00:18,710 --> 00:00:18,720 this is time lapse photography of a 3 00:00:18,720 --> 00:00:20,950 this is time lapse photography of a dangerous weather condition called wind 4 00:00:20,950 --> 00:00:20,960 dangerous weather condition called wind 5 00:00:20,960 --> 00:00:23,670 dangerous weather condition called wind shear usually accompanied by intense 6 00:00:23,670 --> 00:00:23,680 shear usually accompanied by intense 7 00:00:23,680 --> 00:00:26,150 shear usually accompanied by intense downdrafts and heavy rain 8 00:00:26,150 --> 00:00:26,160 downdrafts and heavy rain 9 00:00:26,160 --> 00:00:28,070 downdrafts and heavy rain in recent years it has been linked to 10 00:00:28,070 --> 00:00:28,080 in recent years it has been linked to 11 00:00:28,080 --> 00:00:30,470 in recent years it has been linked to several aircraft disasters 12 00:00:30,470 --> 00:00:30,480 several aircraft disasters 13 00:00:30,480 --> 00:00:32,630 several aircraft disasters nasa has been investigating these 14 00:00:32,630 --> 00:00:32,640 nasa has been investigating these 15 00:00:32,640 --> 00:00:34,709 nasa has been investigating these hazards in hopes of understanding their 16 00:00:34,709 --> 00:00:34,719 hazards in hopes of understanding their 17 00:00:34,719 --> 00:00:37,510 hazards in hopes of understanding their effect on aircraft performance so that 18 00:00:37,510 --> 00:00:37,520 effect on aircraft performance so that 19 00:00:37,520 --> 00:00:42,830 effect on aircraft performance so that safer procedures can be 20 00:00:42,830 --> 00:00:42,840 21 00:00:42,840 --> 00:00:45,030 devised we're encountering a little bit 22 00:00:45,030 --> 00:00:45,040 devised we're encountering a little bit 23 00:00:45,040 --> 00:00:48,389 devised we're encountering a little bit of turbulence 24 00:00:48,389 --> 00:00:48,399 25 00:00:48,399 --> 00:00:51,029 altitude 400 feet okay we have wind 26 00:00:51,029 --> 00:00:51,039 altitude 400 feet okay we have wind 27 00:00:51,039 --> 00:00:53,510 altitude 400 feet okay we have wind shear warning a joint wind shear 28 00:00:53,510 --> 00:00:53,520 shear warning a joint wind shear 29 00:00:53,520 --> 00:00:55,670 shear warning a joint wind shear research program between nasa and the 30 00:00:55,670 --> 00:00:55,680 research program between nasa and the 31 00:00:55,680 --> 00:00:58,310 research program between nasa and the faa is concentrating on building 32 00:00:58,310 --> 00:00:58,320 faa is concentrating on building 33 00:00:58,320 --> 00:01:00,389 faa is concentrating on building avoidance procedures through pilot 34 00:01:00,389 --> 00:01:00,399 avoidance procedures through pilot 35 00:01:00,399 --> 00:01:03,990 avoidance procedures through pilot education with the use of simulators 36 00:01:03,990 --> 00:01:04,000 education with the use of simulators 37 00:01:04,000 --> 00:01:06,950 education with the use of simulators this is a computer model of wind shear 38 00:01:06,950 --> 00:01:06,960 this is a computer model of wind shear 39 00:01:06,960 --> 00:01:09,510 this is a computer model of wind shear notice the effect of the downdraft 40 00:01:09,510 --> 00:01:09,520 notice the effect of the downdraft 41 00:01:09,520 --> 00:01:12,070 notice the effect of the downdraft when a plane flies into this the winds 42 00:01:12,070 --> 00:01:12,080 when a plane flies into this the winds 43 00:01:12,080 --> 00:01:13,830 when a plane flies into this the winds can force it down 44 00:01:13,830 --> 00:01:13,840 can force it down 45 00:01:13,840 --> 00:01:16,230 can force it down nasa researcher dave hinton feels that 46 00:01:16,230 --> 00:01:16,240 nasa researcher dave hinton feels that 47 00:01:16,240 --> 00:01:18,149 nasa researcher dave hinton feels that simulator training is the key to 48 00:01:18,149 --> 00:01:18,159 simulator training is the key to 49 00:01:18,159 --> 00:01:19,990 simulator training is the key to teaching pilots how to deal with the 50 00:01:19,990 --> 00:01:20,000 teaching pilots how to deal with the 51 00:01:20,000 --> 00:01:21,030 teaching pilots how to deal with the problem 52 00:01:21,030 --> 00:01:21,040 problem 53 00:01:21,040 --> 00:01:23,749 problem for example this past summer july 11 54 00:01:23,749 --> 00:01:23,759 for example this past summer july 11 55 00:01:23,759 --> 00:01:25,109 for example this past summer july 11 1988 56 00:01:25,109 --> 00:01:25,119 1988 57 00:01:25,119 --> 00:01:26,870 1988 four aircraft encountered a microburst 58 00:01:26,870 --> 00:01:26,880 four aircraft encountered a microburst 59 00:01:26,880 --> 00:01:28,789 four aircraft encountered a microburst at denver staplan airport 60 00:01:28,789 --> 00:01:28,799 at denver staplan airport 61 00:01:28,799 --> 00:01:30,310 at denver staplan airport that was every bit as strong as the 62 00:01:30,310 --> 00:01:30,320 that was every bit as strong as the 63 00:01:30,320 --> 00:01:31,590 that was every bit as strong as the microburst that caused the crash at 64 00:01:31,590 --> 00:01:31,600 microburst that caused the crash at 65 00:01:31,600 --> 00:01:34,390 microburst that caused the crash at dallas fort worth in 1985. yet these 66 00:01:34,390 --> 00:01:34,400 dallas fort worth in 1985. yet these 67 00:01:34,400 --> 00:01:36,310 dallas fort worth in 1985. yet these four aircraft survived that encounter 68 00:01:36,310 --> 00:01:36,320 four aircraft survived that encounter 69 00:01:36,320 --> 00:01:38,630 four aircraft survived that encounter because of the training they'd received 70 00:01:38,630 --> 00:01:38,640 because of the training they'd received 71 00:01:38,640 --> 00:01:40,069 because of the training they'd received because of the training that the crews 72 00:01:40,069 --> 00:01:40,079 because of the training that the crews 73 00:01:40,079 --> 00:01:41,910 because of the training that the crews had received because of early 74 00:01:41,910 --> 00:01:41,920 had received because of early 75 00:01:41,920 --> 00:01:43,830 had received because of early recognition of the threat and early 76 00:01:43,830 --> 00:01:43,840 recognition of the threat and early 77 00:01:43,840 --> 00:01:45,590 recognition of the threat and early initiation of go around maneuver and 78 00:01:45,590 --> 00:01:45,600 initiation of go around maneuver and 79 00:01:45,600 --> 00:01:48,230 initiation of go around maneuver and proper escape maneuver also at langley a 80 00:01:48,230 --> 00:01:48,240 proper escape maneuver also at langley a 81 00:01:48,240 --> 00:01:50,789 proper escape maneuver also at langley a heavy rain simulator has been devised by 82 00:01:50,789 --> 00:01:50,799 heavy rain simulator has been devised by 83 00:01:50,799 --> 00:01:53,429 heavy rain simulator has been devised by a group of aerospace technologists 84 00:01:53,429 --> 00:01:53,439 a group of aerospace technologists 85 00:01:53,439 --> 00:01:55,990 a group of aerospace technologists at one end of the half-mile track is a 86 00:01:55,990 --> 00:01:56,000 at one end of the half-mile track is a 87 00:01:56,000 --> 00:01:58,310 at one end of the half-mile track is a tubular steel carriage designed 88 00:01:58,310 --> 00:01:58,320 tubular steel carriage designed 89 00:01:58,320 --> 00:02:00,630 tubular steel carriage designed originally to test tires and landing 90 00:02:00,630 --> 00:02:00,640 originally to test tires and landing 91 00:02:00,640 --> 00:02:01,510 originally to test tires and landing gear 92 00:02:01,510 --> 00:02:01,520 gear 93 00:02:01,520 --> 00:02:03,749 gear but specifically adapted to carry part 94 00:02:03,749 --> 00:02:03,759 but specifically adapted to carry part 95 00:02:03,759 --> 00:02:07,190 but specifically adapted to carry part of a full-scale aircraft wing section 96 00:02:07,190 --> 00:02:07,200 of a full-scale aircraft wing section 97 00:02:07,200 --> 00:02:09,510 of a full-scale aircraft wing section the wing is oriented to represent 98 00:02:09,510 --> 00:02:09,520 the wing is oriented to represent 99 00:02:09,520 --> 00:02:11,910 the wing is oriented to represent takeoff for landing settings used by 100 00:02:11,910 --> 00:02:11,920 takeoff for landing settings used by 101 00:02:11,920 --> 00:02:13,750 takeoff for landing settings used by commercial airliners 102 00:02:13,750 --> 00:02:13,760 commercial airliners 103 00:02:13,760 --> 00:02:16,390 commercial airliners water under extreme pressure launches 104 00:02:16,390 --> 00:02:16,400 water under extreme pressure launches 105 00:02:16,400 --> 00:02:18,949 water under extreme pressure launches the sled on a track at 150 miles per 106 00:02:18,949 --> 00:02:18,959 the sled on a track at 150 miles per 107 00:02:18,959 --> 00:02:19,910 the sled on a track at 150 miles per hour 108 00:02:19,910 --> 00:02:19,920 hour 109 00:02:19,920 --> 00:02:22,710 hour a field of over 1500 nozzles creates a 110 00:02:22,710 --> 00:02:22,720 a field of over 1500 nozzles creates a 111 00:02:22,720 --> 00:02:25,350 a field of over 1500 nozzles creates a windstorm for the wind 112 00:02:25,350 --> 00:02:25,360 windstorm for the wind 113 00:02:25,360 --> 00:02:27,910 windstorm for the wind in 10 seconds the test is over 114 00:02:27,910 --> 00:02:27,920 in 10 seconds the test is over 115 00:02:27,920 --> 00:02:29,830 in 10 seconds the test is over sensors on the wing measure its 116 00:02:29,830 --> 00:02:29,840 sensors on the wing measure its 117 00:02:29,840 --> 00:02:31,589 sensors on the wing measure its performance 118 00:02:31,589 --> 00:02:31,599 performance 119 00:02:31,599 --> 00:02:34,630 performance looking at the test again in slow motion 120 00:02:34,630 --> 00:02:34,640 looking at the test again in slow motion 121 00:02:34,640 --> 00:02:37,190 looking at the test again in slow motion an area of water turbulence can be seen 122 00:02:37,190 --> 00:02:37,200 an area of water turbulence can be seen 123 00:02:37,200 --> 00:02:39,589 an area of water turbulence can be seen over the front part of the wind 124 00:02:39,589 --> 00:02:39,599 over the front part of the wind 125 00:02:39,599 --> 00:02:41,670 over the front part of the wind wind tunnel studies have estimated that 126 00:02:41,670 --> 00:02:41,680 wind tunnel studies have estimated that 127 00:02:41,680 --> 00:02:43,990 wind tunnel studies have estimated that this turbulence causes a performance 128 00:02:43,990 --> 00:02:44,000 this turbulence causes a performance 129 00:02:44,000 --> 00:02:47,030 this turbulence causes a performance loss of 15 to 20 percent depending upon 130 00:02:47,030 --> 00:02:47,040 loss of 15 to 20 percent depending upon 131 00:02:47,040 --> 00:02:48,790 loss of 15 to 20 percent depending upon rain intensity 132 00:02:48,790 --> 00:02:48,800 rain intensity 133 00:02:48,800 --> 00:02:51,830 rain intensity aerospace technologist gaudi bezos we 134 00:02:51,830 --> 00:02:51,840 aerospace technologist gaudi bezos we 135 00:02:51,840 --> 00:02:54,070 aerospace technologist gaudi bezos we are here doing a large scale test to see 136 00:02:54,070 --> 00:02:54,080 are here doing a large scale test to see 137 00:02:54,080 --> 00:02:56,470 are here doing a large scale test to see if it's real is a realistic 138 00:02:56,470 --> 00:02:56,480 if it's real is a realistic 139 00:02:56,480 --> 00:02:58,390 if it's real is a realistic effect at large scale 140 00:02:58,390 --> 00:02:58,400 effect at large scale 141 00:02:58,400 --> 00:03:00,710 effect at large scale nasa's research on the effect of 142 00:03:00,710 --> 00:03:00,720 nasa's research on the effect of 143 00:03:00,720 --> 00:03:03,190 nasa's research on the effect of dangerous weather conditions preparing 144 00:03:03,190 --> 00:03:03,200 dangerous weather conditions preparing 145 00:03:03,200 --> 00:03:05,509 dangerous weather conditions preparing pilots for what mother nature has to 146 00:03:05,509 --> 00:03:05,519 pilots for what mother nature has to 147 00:03:05,519 --> 00:03:08,519 pilots for what mother nature has to offer