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The Military Transportation Technology

Crashed X-51A Test Results Released 48

cylonlover writes "The United States Air Force (USAF) has released the results of last August's third test of the X-51a Waverider, which resulted in the crash of the unmanned scramjet demonstrator. At a press teleconference featuring the Program Manager for Air Force Research Laboratory, Charles Brink, it was confirmed that a malfunctioning fin was the cause of the crash. However, engineers are confident of correcting the fault in time for the fourth test flight scheduled for (Northern Hemisphere) late spring or early summer of next year."
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Crashed X-51A Test Results Released

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  • Short Report: (Score:5, Interesting)

    by Penguinisto ( 415985 ) on Thursday October 25, 2012 @10:14PM (#41773361) Journal

    This should be easy, no?

    1) Procure working torque wrench of sufficient size and strength.
    2) *use* the damned thing next time.

    I mean, really - not even one page of paper for the summary.

  • RTFA (Score:4, Interesting)

    by Required Snark ( 1702878 ) on Thursday October 25, 2012 @11:43PM (#41773835)
    http://www.gizmag.com/x-51a-waverider-third-test-results/24665/ [gizmag.com]

    However, about 15.5 seconds into the flight the upper right-hand fin unlocked and deployed while the booster was still firing. ... Indications are that the fin deployed because a random vibration issue caused the assembly to vibrate harmonically while in boost phase, so that the actuator responded and sprang open. ... Brink says that the simplest fix will be to deploy the fins on the cruiser about one or two seconds after being dropped from the B-52 instead of later when the vibration problem occurred so that the fins are powered up and protected from damage.

    You're assertion is that the problem is the same as tightening the lug nuts on a car tire. The only lug nuts I see are the ones rattling around in your empty skull.

    This aircraft needs to achieve almost Mach 5 before the engine even starts, so it requires an air drop and a rocket booster even to start working. It operates in a test domain that cannot be completely simulated or created in a ground test. This is exactly the kind of failure that can only be encountered by a live lest. You have to build it, fly it, and see if it breaks. There is no other way.

    Given you complete lack of technical understanding, I would suggest that you stop wasting people's time on Slashdot and go somewhere more suited to your mental level. I hear that Disney has a lot of nice stuff for children. I think you would fit right in.

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