Business Insider reported that work continues on a prototype of the jet, but portions of the aircraft have been released to the public, including testing of Lynx's supersonic engine last week.

据商业内幕网站报道，这种飞机的原型机仍在建造当中，但部分情况已对外公布，包括上周公布的“山猫”号超音速引擎测试。

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In 1956, the Supersonic Transport Aircraft Committee met in England to discuss building a supersonic airliner by British aircraft and engine manufacturers and the government.

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The vehicle was dropped from a carrier aircraft high above California's Mojave Desert and ignited its rocket engine to go supersonic for a few seconds.

BBC: Science correspondent, BBC News