MIL-HDHK-162A
Volume 1
15 December 1965
Section 2
DATE: 15 May 196.1
ITEM NAME: RADAR SET
COGNIZANT SERVICE: USAF
TYPE: AN/APN-89
FEDERAL STOCK NUMBER: 5841-561-4269
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
Ltd Std
Mfg(s) Name or Code Number: General Precision Laboratory
26.4 :2.5 vdc
FUNCTIONAL DESCRIPTION
Type of Presentation: Meters
Duty Cycle: 0.045
Radar Set AN/APN-89 is an airborne, doppler radar
Environmental Limitations: Pressurized com-
ground speed and drift angle measuring equipment,
ponents require a forced air cooling sour(e.
designed to provide accurate ground speed and drift
Ground Speed: 70 to 700 knots
angle information to an AN/ASB-4 system under normal
operation. The radar set operates anywhere over the
Drift Angle:
globe independently of ground based navigation aids,
Right - O to 49 deg
weather conditions, or visibility.
Left - O to 49 deg
Aircraft Pitch Without Signal Loss:
RELATION TO SIMILAR EQUIPMENT
Nose up - 14 deg
Nose down - 24 deg
Uses some components of the AN/APN-81.
Aircraft Roll Without Signal Loss:
Right wing down - 14 deg
TECHNICAL DESCRIPTION
Left wing down - 14 deg
Probable Accuracy:
Ground speed- :2.1 knots(..0.3 of top speed)
Range, Max: 70,000 ft
Drift angle - 0.15%
Range, Min: 500 ft
Peak Power Output:
INSTALLATION CONSIDERATIONS
Operating Voltages and Power Requirements:
115/200v, 380 to 1,000 cps, 2-ph 1,500w nom
Not available.
AN/APN-89: 1