Warplanes of the USA: North American X-15, USAF
North American X-15 (USAF Photo) North American X-15 attached to its Boeing B-52 mother ship with a Northrop T-38 Talon flying nearby. Three X-15s were built, flying 199 test flights, the last on 24 October 1968. (NASA Photo) X-15A-2 (56-6671) with external fuel tanks, 1965. The North American X-15 is a hypersonic rocket-powered aircraft operated by the … Read more