TM 75053
AN/PMQ3A
Figure 11. Wind Measuring Set AN/PMQ3A.
Generator output _ _ _ _ _ _ _ _ _ 4.46 vac 0.06 at rotor
1. NOMENCLATURE: Wind Measuring Set AN/PMQ3A.
speed of 120 Hz (40
knots).
2. TYPE CLASSIFICATION: Standard A.
Indicator, Windspeed:
3. SECURITY REQUIREMENTS: Unclassified.
Inner scale _ _ _ _ _ _ _ _ _ _ _ 015 knots.
Outer scale _ _ _ _ _ _ _ _ _ _ _ 060 knots.
4. PRIMARY USE OR CONCEPT OF EMPLOYMENT:
Range toggle switch normal. 060 scale.
Gives visual wind direction and windspeed readings in
Accuracy _ _ _ _ _ _ _ _ _ _ _ _ _ knot from 07; 1
knot from 1040; 2
support of artillery fire and meteorological forecasts.
knots from 4160
5. BRIEF FUNCTIONAL DESCRIPTION: A complete
knots.
portable hand-held wind measuring set which will give
Wind Direction:
visual indications of wind direction from 0 to 860 and
Trigger switch engaged _ _ _ _ Free movement from
windspeeds from 0 to 60 knots.
0-360.
Trigger switch released _ _ _ Locking brake for wind
6. TECHNICAL CHARACTERISTICS:
vane pointer direction
General:
reading.
Windspeed _ _ _ _ _ _ _ _ _ _ _ 60 knots maximum.
Accuracy _ _ _ _ _ _ _ _ _ _ _ _ 2 in a 5 knot wind.
Wind direction _ _ _ _ _ _ _ _ _ 0360 in azimuth.
7. MAJOR COMPONENTS:
Case Carrying CY1067D/PMQ3A.
Turbine generator _ __ _ _ _ Rotor generator with
Anemometer, Wind Vane ML446A/PMQ3.
voltage output pro-
Wind Speed Transmitter MLT321A/PMQ3.
portional to wind-
Wind Vane ML447A/PMQ3.
speed.
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