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• n  a simple type of jet engine; must be launched at high speed

• A scramjet (that's top-gun shorthand for "supersonic ramjet") is a jet engine that is powered by oxygen it scoops out of the air as it flies, so it's not weighed down by a fuel .
• The waterborne jet works on much the same principle as the airborne ramjet.
• Because the basic ramjet is just about the simplest power plant ever to be airborne, its promise has always excited aeronautical engineers.

• ramjet engine
• atherodyde
• athodyd
• flying drainpipe

News & Articles

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• New York to Dublin in one hour -- the future of aviation?
  A United States military designed scramjet (supersonic combustion ramjet), called the X-51A WaveRider, is set to make history by flying the same distance as a Trans-Atlantic flight, from New York to Dublin, in just one hour.
  June 29, 2013 - Irish Central