Tachometer letters (3 letters)

{ Answer }

RPM

{ Related Clues }

45 ___
45 letters
78 letters
Dash letters
Dashboard abbr.
Dashboard meas.
Engine meas.
LP speed
Meas. of speed
Record letters
Record number?
Record stat
Speed abbr.
Speed initials
Speed letters
Speed meas.
Tach measure
Tach reading
Tach readout
Tachometer abbr.
Turntable abbr.
33 1/3, for an LP
33 or 45, e.g.
45 or 78: Abbr.
45 or 78, e.g.
78 or 33 1/3
Dashboard reading: Abbr.
Engine speed, for short
Indy driver's concern
Kramer film: 1970
Meas. of engine speed
Motor speed: Abbr.
Record speed: Abbr.
Spin cycle?: Abbr.
Tach measure, for short
Tach reading, for short
Tachometer calibration, for short
Wheel-speed meas.
33 1/3, 45 or 78, briefly
33 1/3, e.g., for a record: Abbr.
33 1/3, for a record album: Abbr.

{ Tags }

abbr, calibration, dashboard, eg, engine, letters, lp, meas, measure, reading, record, rpm, short, speed, tach, tachometer, 13, 33, 45, 78, 1970

{ Notes }

The answer RPM is common and appears about once every 225 puzzles.

{ Definition }

RPM as a noun:

1. (revolutions per minute, rpm, rev) = rate of revolution of a motor; "the engine was doing 6000 revs"