Test Flight Of U.S. Air Force Hypersonic X-51A Aircraft Ends In Failure

Military’s Mach 5 Missile Fails, Again -- Danger Room

A crucial test for the Air Force’s experimental Mach 5 missile has ended in failure, according to the Air Force. Tuesday’s test is also the third time the hypersonic X-51A Waverider cruise missile has fallen short. But this time could be the last.

As first reported by Danger Room, the Waverider’s control fin failed, preventing the missile’s scramjet engine from starting. The Air Force later confirmed the result in a statement. That also corresponds to information provided by an insider familiar with the test, who said a problem with a missile’s fin caused a loss of control before the engine could kick in.

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More News On Yesterday's Failure Of The Hypersonic X-51A Aircraft

US hypersonic aircraft crashes seconds into military test flight -- Reuters
Hypersonic vehicle fails flight test: US Air Force -- AFP
Hypersonic jet Waverider fails Mach 6 test -- BBC
Unmanned Air Force craft fails in attempt to reach Mach 6 for 5 minutes over Pacific Ocean -- Washington Post/AP
Hypersonic Waverider jet fails during attempt to fly six times speed of sound -- The Telegraph
US hypersonic aircraft crashes in test flight -- The Telegraph
Air Force's Hypersonic X-51A jet fails latest test flight, is lost over the Pacific -- FOX News
Air Force X-51A WaveRider Hypersonic Jet Crashes -- ABC News
X-51A WaveRider hypersonic mission doomed by bum missile fin -- Endgadget
USAF Hypersonic Aircraft Fails Flight Test -- Defense News
Hypersonic Craft Fails in Test Flight -- Wall Street Journal

Key Hypersonic Test Flight Tomorrow

(Click on Image to Enlarge)

Key Test Set For Sustained Hypersonic Flight -- L.A. Times

The unmanned experimental aircraft X-51A WaveRider is expected to fly above the Pacific Ocean near Point Mugu at Mach 6 for 300 seconds Tuesday.

Since test pilot Chuck Yeager broke the sound barrier in 1947, engineers and scientists have dreamed of ever-faster aircraft. Now, they face one of their toughest challenges yet: sustaining hypersonic flight — going five times the speed of sound or more — for more than a few minutes.

In a nondescript hangar at Edwards Air Force Base in the Mojave Desert, a team of aerospace engineers has been putting the finishing touches on a lightning-quick experimental aircraft designed to fly above the Pacific Ocean at 3,600 mph. A passenger aircraft traveling at that speed could fly from Los Angeles to New York in 46 minutes.

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Update: Tomorrow's Test Of The X-51 Waverider Could Usher In A New Era Of Flight -- Business Insider

My Comment: I wish them the best.

Why Did Falcon Hypersonic Technology Vehicle Test Failed?

An artist's rendering of the Falcon Hypersonic Technology Vehicle 2. (Defense Advanced Research Projects Agency / April 20, 2012)

Pentagon Releases Results Of 13,000-Mph Test Flight Over Pacific -- L.A. Times

The results are in from last summer’s attempt to test new technology that would provide the Pentagon with a lightning-fast vehicle, capable of delivering a military strike anywhere in the world in less than an hour.

In August the Pentagon's research arm, known as the Defense Advanced Research Projects Agency, or DARPA, carried out a test flight of an experimental aircraft capable of traveling at 20 times the speed of sound.

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Update: DARPA releases cause of hypersonic glider anomaly -- AP

My Comment: Now we know why the test failed .... but with no money in the budget for additional tests, it looks like this research is going to be put on hold for now.