What is Mach Speed? | Subsonic Supersonic Hypersonic
Автор: Satisfied Engineers
Загружено: 2025-08-31
Просмотров: 15998
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Mach 1 is the speed of sound in air, about 343 m/s (1235 km/h) at sea level and 20 °C. The Mach number (Ma) is the ratio of an object’s speed to the local speed of sound. Ma is less than 1 is subsonic, Ma = 1 is transonic, Ma is greater than 1 is supersonic, and Ma is greater than 5 is hypersonic. This video explains the basics of Mach speed in aerodynamics.
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