Mach5

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  • X-51A WaveRider scramjet hits Mach 5, sets record for longest hypersonic flight

    by 
    Donald Melanson
    Donald Melanson
    05.28.2010

    It might be a bit difficult to make out, but what you're looking at above is the X-51A WaveRider scramjet in the process of setting a record for the longest hypersonic flight. That happened around 10 a.m. on May 26th, when the rocket was dropped from the wing of a B-52 bomber at a height of 50,000 feet and proceeded to fly at Mach 5 for more than three-and-a-half minutes, blowing away the previous record of just twelve seconds. If you can believe it, however, the aircraft actually fell somewhat short of its goal -- Boeing and the Air Force were hoping the WaveRider would be able to fly for 300 seconds and hit Mach 6, but something apparently caused it to lose acceleration towards the end. Head on past the break for the video, we assure you it's still pretty impressive.

  • Speed Racer's Mach 5 comes to life

    by 
    Darren Murph
    Darren Murph
    06.08.2007

    Sorry K.I.T.T., you had a nice run there, but we're pretty certain the newly created Mach 5 could destroy you in the quarter mile. As the crew readies for the Speed Racer-inspired motion picture to land in May 2008, this blast from the animated past has finally become a reality, and it even parked for a photograph and an unveiling ceremony, too. The sparkly white ride sports a blinding red interior, stripped down dashboard, push button start, and a hint of nostalgia to boot. We know, next May is a long ways off, but feel free to click through and see the presentation of the tangible Mach 5 in all of its glory -- now go, Speed Racer, go.[Via CNET]