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Milburn Grant "Mel" Apt [1] (April 9, 1924 – September 27, 1956) was a U.S. Air Force test pilot, and the first man to attain speeds faster than Mach 3. [2] He was killed after separating from the Bell X-2 in his escape capsule during the record-setting flight that exceeded Mach 3. [3]
Among other things, one of the changes was provisions for a dummy scramjet to test if wind tunnel testing was correct. Unfortunately, on the final flight of the X-15-A2 , the shock waves sent out by the scramjet at Mach 6.7 caused extremely intense heating of over 2,700 °F (1,480 °C). This then drilled into the ventral fin and melted large holes.
The Fokker S.14 Machtrainer is a two-seater military training jet aircraft designed and manufactured by the Dutch aircraft manufacturer Fokker for the Royal Netherlands Air Force (RNLAF).
The X-15 had an ejection seat designed to operate at speeds up to Mach 4 (4,500 km/h; 2,800 mph) and/or 120,000 feet (37 km) (23 miles) altitude, although it was never used during the program. [12] In the event of ejection, the seat was designed to deploy fins, which were used until it reached a safer speed/altitude at which to deploy its main ...
Simulation of hypersonic speed (Mach 5) While the definition of hypersonic flow can be quite vague and is generally debatable (especially because of the absence of discontinuity between supersonic and hypersonic flows), a hypersonic flow may be characterized by certain physical phenomena that can no longer be analytically discounted as in supersonic flow.
Twelve pilots flew the X-15 over the course of its career. Scott Crossfield and William Dana flew the X-15 on its first and last free flights, respectively. Joseph Walker set the program's top two altitude records on its 90th and 91st free flights (347,800 and 354,200 feet, respectively), becoming the only pilot to fly past the Kármán line, the 100 kilometer, FAI-recognized boundary of outer ...
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