Mach Number - NASA
May 13, 2021 · The Mach number M allows us to define flight regimes in which compressibility effects vary. Subsonic conditions occur for Mach numbers less than one, M < 1 . For the lowest subsonic conditions, compressibility can be ignored. As the speed of the object approaches the speed of sound, the flight Mach number is nearly equal to one, M = 1 , and the ...
DA: 37 PA: 89 MOZ Rank: 43