20世纪的四五十年代,试飞员们在尝试加速飞行时遇到了音障——一种飞行器速度接近音速时,会追上自己发出的声波造成震波,进而对加速产生障碍的现象。伴随着音障,冲击波会撕裂飞机的翅膀,使飞机解体。音障难题于是横亘在科研人员与试飞员面前,飞机提速举步维艰。 In the 1940s and 1950s, test pilots encountered a noise barrier while attempting to speed up their flight - an aircraft approaching the speed of sound would catch up with its own sound waves causing shock waves, which in turn would cause obstacles to acceleration. Accompanied by the sound barrier, the shock wave will tear the wings of the aircraft, the aircraft disintegrated. Sound barrier problems so lie in front of researchers and test pilots, the aircraft speeding difficult.