Definition of sound barrier in English:

sound barrier

noun

the sound barrier
  • The increased drag, reduced controllability, and other effects which occur when an aircraft approaches the speed of sound, formerly regarded as an obstacle to supersonic flight.

    ‘On its third flight, the aircraft broke the sound barrier, reaching a speed of Mach 1.1.’
    • ‘The shock waves set up when you go through the sound barrier also add to drag.’
    • ‘As a result, an aircraft creates a sudden discontinuity in pressure and temperature called a shock wave as it breaks the sound barrier.’
    • ‘Despite its name, the sonic boom cloud doesn't always come with a sonic boom, and it's not a shock wave of the sound barrier being broken.’
    • ‘If you want to see something really cool, check out this very short video clip of an aircraft breaking the sound barrier - in slow motion.’
    • ‘In 1969, Concorde prototype 001 broke the sound barrier on a test flight in France.’
    • ‘That is a jet supposedly breaking the sound barrier.’
    • ‘To get a plane to fly through the sound barrier, this shockwave has to be tamed.’
    • ‘Perhaps part of the whip moves faster than the speed of sound, around 750 miles an hour, and the clap of noise comes as the sound barrier is broken.’
    • ‘Concorde 001 broke the sound barrier for the first time during a test flight in France.’
    • ‘They are streaking by at speeds that come close to breaking the sound barrier.’
    • ‘Seniors and aerodynamics aficionados might remember that on this day in 1947, a maverick U.S. Air Force pilot broke the sound barrier.’
    • ‘Their sound system starting up was like having Concorde breaking the sound barrier above your head; it was absolutely deafening.’
    • ‘You only get some vibration, you get a fair bit of wing-tip vibration as you come back down through the sound barrier, but by then you're almost home anyway.’
    • ‘In 1952, Lean undertook his first production for Alexander Korda: The Sound Barrier - a well-received film about a pilot who manages to break the sound barrier.’
    • ‘It wasn't until the following year that Concorde finally broke the sound barrier, and another six until it entered commercial service, but the technology was sixties through and through.’
    • ‘Flying just below the sound barrier, the ride tends to be bumpy and unpredictable because shock waves form around the airplane as it approaches Mach 1.’
    • ‘But wait a few seconds and you'll definitely hear and feel something: the shock it creates when breaking the sound barrier.’
    • ‘If all goes according to plan, she'll break the sound barrier on the way down - becoming the first human to do so without help from a plane or rocket.’
    • ‘Stearns will break the sound barrier in her record-setting jump as she plummets toward the earth at more than 800 mph.’

Pronunciation

sound barrier

/ˈsoun(d) ˌberēər/ /ˈsaʊn(d) ˌbɛriər/