Mach 1
Barrier jets break
Mach 1 is the speed of sound—approximately 767 miles per hour at sea level, though it varies with temperature and altitude.
Aircraft traveling at Mach 1 are moving at exactly the speed of sound; above it is supersonic, below it is subsonic.
The jet broke Mach 1 and produced a sonic boom.
The term comes from physicist Ernst Mach.
- speed of soundAcoustic wave velocity
- sound barrierMach one transition zone
- jetForced fluid stream
- sonic boomShockwave's audible crack
- speedRate of motion
aircraft · flight · breaking · thrust · jet propulsion · afterburner · cockpit · altitude · high altitude · velocity · Chuck Yeager · roar · thunder · shockwave · acceleration · fighter · pilot · needle
- Muscle CarsMustang, Camaro, Challenger, Charger, Chevelle
- sound physicssonic boom, sound barrier, supersonic, subsonic, transonic
- Supersonic flightConcorde, sonic boom, sound barrier, SST, afterburner
- Supersonicssonic boom, sound barrier, shock wave, supersonic, supersonic flight
- speed recordsworld record, land speed record, Olympic record, lap record, track record
speed regime
Mach 1subsonic
Below sound's speed
hypersonic · Mach 5 · supersonic · standstill · stationary
motion vs. stillness
Mach 1at rest
Motionless, unmoving
motionless · stationary · standstill · stopped · static
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- time machineDevice enabling temporal journeys
- vending machineAutomated product dispenser
- machine gunContinuous-fire arm
- answering machineTelephone message recorder
- slot machineCoin-operated gambling device