1 00:00:00,000 --> 00:00:16,830 you 2 00:00:22,350 --> 00:00:19,440 for the past six years flights have been 3 00:00:24,690 --> 00:00:22,360 made by a pair of x-29 aircraft from the 4 00:00:54,240 --> 00:00:24,700 desert with NASA's Dryden Flight 5 00:01:00,700 --> 00:00:57,729 the x-29 requires a new breed of 6 00:01:03,220 --> 00:01:00,710 aeronautical technology because it's 7 00:01:05,560 --> 00:01:03,230 thin wings close-coupled canards the 8 00:01:08,200 --> 00:01:05,570 smaller movable surfaces in front of the 9 00:01:19,180 --> 00:01:08,210 wings and rear straight flaps make it 10 00:01:25,990 --> 00:01:19,190 naturally unstable in flight to the 11 00:01:27,880 --> 00:01:26,000 control the computers are is necessary 12 00:01:29,200 --> 00:01:27,890 to fly the airplane is the hydraulic 13 00:01:31,960 --> 00:01:29,210 system is that actually moves the 14 00:01:34,180 --> 00:01:31,970 actuators steve ishmael one of the 15 00:01:36,370 --> 00:01:34,190 program's principal test pilots has 16 00:01:39,070 --> 00:01:36,380 experienced the benefits of combining 17 00:01:42,969 --> 00:01:39,080 new interrelated technology into one 18 00:01:44,710 --> 00:01:42,979 airplane it gets at another advance in 19 00:01:46,600 --> 00:01:44,720 technology where you see the interaction 20 00:01:49,359 --> 00:01:46,610 for instance between the canard and this 21 00:01:52,180 --> 00:01:49,369 forward sweep and and that's that's very 22 00:01:54,880 --> 00:01:52,190 very complex and it varies is your angle 23 00:01:56,590 --> 00:01:54,890 attack and your Mach changes that's part 24 00:02:01,060 --> 00:01:56,600 of the beauty in the problem of the art 25 00:02:03,429 --> 00:02:01,070 of designing airplanes the advantage of 26 00:02:05,620 --> 00:02:03,439 a forward swept design is that air 27 00:02:08,440 --> 00:02:05,630 moving over the wing tends to flow in 28 00:02:10,270 --> 00:02:08,450 word rather than outward this allows air 29 00:02:12,610 --> 00:02:10,280 flow to remain smooth around the 30 00:02:15,400 --> 00:02:12,620 wingtips and makes the x-29 easier to 31 00:02:20,510 --> 00:02:15,410 control and extreme maneuvers it's 32 00:02:20,520 --> 00:02:23,920 sometimes 33 00:02:27,699 --> 00:02:25,839 modern fighter jets have trouble 34 00:02:34,569 --> 00:02:27,709 handling anything in excess of 30 35 00:02:39,030 --> 00:02:34,579 degrees six years the x-29 has proven 36 00:02:45,270 --> 00:02:42,089 flight systems and the use of composites 37 00:02:47,880 --> 00:02:45,280 in wing construction this highly 38 00:02:49,949 --> 00:02:47,890 successful flight test program will 39 00:02:52,589 --> 00:02:49,959 almost certainly influence future