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" ... The previous era of civilian supersonic flight ended in October, 2003, with the final run of the Concorde aircraft; it was a British Airways flight from JFK in New York to Heathrow in London. The Concorde was largely a commercial failure as high upkeep and fuel costs for supersonic airliners slowly ate away at the once-profitable higher ticket prices they could command. Concerns about sonic booms could potentially hobble the new era of supersonic flight, but the Aerion AS2 will employ so-called “boomless” technology that refracts the shock waves produced by moving air molecules around the fuselage at faster-than-sound speeds away from the ground to mitigate any disturbing effects. ... "