This page provides all possible meanings and translations of the word machmeter
speedometer for measuring the speed of an aircraft relative to the speed of sound
An instrument that measures the speed of an aircraft relative to that of sound and displays it in Mach numbers
A Machmeter is an aircraft pitot-static system flight instrument that shows the ratio of the true airspeed to the speed of sound, a dimensionless quantity called Mach number. This is shown on a Machmeter as a decimal fraction. An aircraft flying at the speed of sound is flying at a Mach number of one, expressed as Mach 1.
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