Word: mache
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...just above the ground before hitting its target; the Navy model would be light enough to fly off carriers and provide air defense for the fleet. Because both services wanted a jet with sliding wings that would allow it to take off in short spaces, land slowly, sprint at Mach 2.5 or loiter for hours, McNamara's experts calculated that $1 billion could be saved if the services used the same basic craft...
...record of 4,260 m.p.h., or 6.33 times the speed of sound. Last week the once all-black plane sported a white paint job covering new ablative material purposely designed to char in flight as the aircraft engages in tests that should push its maximum speed to a blistering Mach 8 by 1969. Snugged under its wings, the X-15 now carries twin, droppable tanks loaded with additional fuel needed to achieve such speed...
...display, virtually a flying aerodynamics laboratory, is the survivor of two prototypes. Needle-nosed, delta-winged and resembling two giant praying mantises, both of the 6-engine jets had attained a speed of Mach 3 in tests. Then the second and more sophisticated of the two crashed in June 1966 after Test Pilot Joe Walker's F-104 Starfighter jet brushed the giant plane's wing, then tore through a rudder during a publicity flight. Since then, tests of XB-70 No. 1 have contributed aerodynamic and thermodynamic knowledge, including studies of the sonic-boom problem that...
...first plane, built in 1929, was an endearing spit-and-string monoplane called "the Doodlebug," and his most recent is the F-4 Phantom II, the Mach 2 workhorse of the Viet...
...reason is that the 23 prototype F-111s built by General Dynamics have had problems. The key swing-wing design, which permits 120-m.p.h. landings and supersonic dashes, has worked well, and the plane, in its 1,800 test flights to date, has hit speeds as high as Mach 2.5. But the Navy, in particular, has complained that the F-111B, which at 66 ft. and 35 tons has grown considerably from its design size and weight, is too long and too heavy for carrier operations. The price tag, too, has grown. Instead of the $2,800,000 each plane...