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scramjet

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X-51A Waverider hits Mach 5.1 in final flight

The accomplishment marks the longest flight for the $300 million X-51A technology demonstration program and, according to the Air Force and Boeing, the longest scramjet-powered hypersonic flight ever.

By May. 3, 2013

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Lockheed envisions Mach 6 successor to SR-71 Blackbird

Over at the Skunk Works, aircraft designers are hard at work cooking up a hypersonic scion to the legendary SR-71, the superspeedy recon jet of the Cold War.

By Nov. 1, 2013

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Futuristic X-51A fails in hypersonic bid

Trouble with a control fin on the sleek, scramjet-powered aircraft puts an abrupt and early end to the Air Force's attempt at a Mach 6 flight.

By Aug. 15, 2012

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Unlocked fin likely brought down X-51A in August crash

The flight failed due to aerodynamic problems caused when a fin became unlocked, sending the experimental aircraft into a corkscrew. A fourth X-51A flight will likely take place next year.

By Oct. 24, 2012

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DARPA fires up XS-1 space plane quest

The new XS-1 program wants designs for satellite-toting flying machines that are fast (hypersonic, even), cheap, and reusable -- on a one-day turnaround, no less.

By Sep. 18, 2013

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X-51A races to hypersonic record

The Air Force's experimental, scramjet-powered Waverider makes a short but historic flight in a test range over the Pacific Ocean.

By May. 26, 2010

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Legacy B-52 to launch futuristic WaveRider

X-51A WaveRider scheduled to be dropped over Pacific Ocean in December inaugural test flight.

By Aug. 14, 2009

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Will DARPA's 13,000-mph plane fly?

The Falcon HTV-2 was expected to glide through the upper atmosphere at speeds up to Mach 20, but the flight ended prematurely in the Pacific.

By Aug. 11, 2011

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Hypersonic cruiser is one step closer

DARPA clears a key hurdle.

By Sep. 17, 2007

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New brief on DARPA's Vulcan engine

Vulcan combines turbine and scramjet engines to power hypersonic vehicle.

By Jun. 24, 2008