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sound barrier

sound barrier Name for the cause of an aircraft's difficulties in accelerating to a speed faster than that of sound. When approaching the speed of sound, an aircraft experiences a sudden increase in drag and loss of lift. These are caused by the build-up of sound waves to form shock waves at the front and back of the aircraft. The problems were solved by designing aircraft with smaller surface area, swept-back wings, and more powerful engines. See also sonic boom

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sound barrier

sound bar·ri·er • n. (the sound barrier) the increased drag, reduced controllability, and other effects that occur when an aircraft approaches the speed of sound, formerly regarded as an obstacle to supersonic flight.

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"sound barrier." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 18 Nov. 2018 <https://www.encyclopedia.com>.

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sound barrier

sound barrier: see aerodynamics.

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"sound barrier." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 18 Nov. 2018 <https://www.encyclopedia.com>.

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