The X-51A Waverider was carried aloft for the first time Dec. 9 by an Air Force Flight Test Center B-52 Stratofortress over Edwards Air Force Base, Calif.The test was a key milestone in preparation for the X-51 to light its supersonic combustion ramjet engine and propel the WaverRider at hypersonic speed for about five minutes, before plunging into the Pacific Ocean.
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