The X-1’s fuselage was designed to resemble a .50 caliber bullet—one of the only shapes known to have stable flight at supersonic speeds. The Bell X-1 hangs today from the ceiling of the National Air ...
DARPA has initiated an effort to build a new, stealthy spy plane. Unlike other aircraft, this X-plane will feature a hybrid electric propulsion system. The XRQ-73 will be much quieter than traditional ...
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