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Ref : S04878
Theme :
Aviation-NASA aircrafts-Prototypes (1538 images)
Title : X-15 launch from B-52 mothership
Caption :
This photo illustrates how the X-15 rocket-powered aircraft was taken aloft under the wing of a B-52. Because of the large fuel consumption, the X-15 was air launched from a B-52 aircraft at 45,000 ft and a speed of about 500 mph. This was one of the early powered flights using a pair of XLR-11 engines (until the XLR-99 became available).
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