machmeter

[n] - speedometer for measuring the speed of an aircraft relative to the speed of sound
Found on http://www.webdictionary.co.uk/definition.php?query=machmeter

machmeter

noun speedometer for measuring the speed of an aircraft relative to the speed of sound
Found on http://wordnetweb.princeton.edu/perl/webwn?s=machmeter

Machmeter

(from the article `airspeed indicator`) ...differences and temperature give the true airspeed, which is used to calculate the aircraft`s position. In faster aircraft, indicators that ... ...that indicate power, such as the tachometer (in propeller craft), torquemeter (in turboprops), and exhaust pressure ratio indicator (in ... [2 re...
Found on http://www.britannica.com/eb/a-z/m/4

Machmeter

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. ==Use== As an aircraft in...
Found on http://en.wikipedia.org/wiki/Machmeter
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