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Holy Scram-It Batman, That's Fast!

  • Could we fly from London to New York in an hour? NASA scientists test 4,500mph hypersonic jet
  • Scramjet engine can accelerate craft to over Mach 6
  • Could dramatically slash journey times by travelling at five times the speed of sound
  •  

     

    It looks like something you’d expect to see launch from Tracy Island.

    But this Thunderbirds-style aircraft could be the future of long-haul flights.

    The hypersonic X-51A WaveRider belongs to the US military and uses a revolutionary ‘scramjet’ engine to reach 4,500mph within seconds.


    London to New York in Less than an hour: The X-51A Waverider is designed to ride on its own shockwave, accelerating to about Mach 6

    London to New York in Less than an hour: The X-51A Waverider is designed to ride on its own shockwave, accelerating to about Mach 6

    The flight of the waverider

     

    Arduous journeys for holidaymakers could be a thing of the past if the technology takes off. A trip across the Atlantic from London to New York would take the plane just one hour, travelling at five times the speed of sound.


    Today the cutting-edge craft will be dropped from a B52 bomber over the Pacific Ocean in its latest test.


    It will be flown from Edwards Air Force Base in the Mojave Desert in California, attached to the bomber’s wing.


    HOW IT WORKS

    Scramjets are 'airbreathing' aircraft because rather than carrying both fuel and the oxygen needed to provide acceleration, they carry only hydrogen fuel and 'pull' the oxygen needed to burn it from the atmosphere.

    Air is forced into the front of the engine and as hydrogen is injected into the airstream, the gases are compressed causing the temperature to rise and ignition to occur.

    This generates huge amounts of thrust and enables the jet to travel at speeds far in excess of the 1,350mph top speed of Concorde.

    The jet will then be dropped from almost 50,000ft near the Point Mugu promontory. A rocket booster will ignite and speed it up to about Mach 4.5 and, if all goes well, the aircraft’s engine will take over from there, pushing the speed to more than Mach 6 and lifting the craft to 70,000ft.

     

    The mission will last 300 seconds – the longest the craft has ever flown to date. After the historic test, the plane will crash into the sea, and there are no plans to recover it.



    Read more: http://www.dailymail.co.uk/sciencetech/article-2187520/London-New-York-hour-Radical-new-aircraft-reach-Mach-6-set-tested.html#ixzz23VwrMaim

    Last Updated on Friday, 24 August 2012 02:37  

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