FOXNews.com: Supersonic jet to fly from London to Sydney in four hours

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Supersonic jet to fly from London to Sydney in four hours Jun 25th 2012, 15:56 Image flying from London to Sydney in four hours?  The trip, which usually takes upwards of 23 hours hour, is one step closer to becoming reality. A prototype of the the "Son Of Concorde", a supersonic jet being designed in an collaborative effort between Boeing, Lockheed Martin, Gulfstream and NASA is set to be revealed next month at the Farnborough air show in London, reports News.com.au.   It could usher the days of the original Concorde that flew transatlantic flights for Air France and British Airways until its retirement in 2003. The  plane would fly at more than 2485 mile per hour, according to the U.K.'s Daily Mail. Currently, the fastest subsonic executive jet, Gulfstream's new G650, can fly 7,000 miles at a  646mph and has a top speed of just 704mph.  The biggest obstacle designers are working to overcome is the sonic boom sound that was produced by the Concorde. A Gulfstream engineer described the sound the new jet will make as "closer to a puff or plop," reports the Mail. The jet, codenamed X-54, wouldn't be available as a full-sized jet until 2030, assuming the new technology was reliable and successful.

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