Volume 1
MIL-HDBK-162A
Section 2
15 December 1965
ITEM NAME: RADAR SET
TYPE: AN/APN-144
with scale factor of three deg shaft
RELATION TO SIMILAR EQUIPMENT
rotation per deg of drift angle.
Limits of Operation
None.
Groundspeed: 70 to 1000 knots.
Drift Angle: 40 deg max to left or
TECHNICAL DESCRIPTION
right.
Altitude: 200 to 50,000 ft
Outputs
Altitude: Pitch angles within plus or
Groundspeed
minus 15 deg from horizontal
Visual: Displayed on Indicator as
Accuracy
digital readout.
Groundspeed: plus or minus 0.6% plus
Electrical: Synchro output with
1.0 knot for 95% of observations.
scale factor of 36 deg shaft ro-
Input Power Requirements:
tation per 1OO knots of ground-
115 plus or minus l1v ac, 380 to 420
speed. Potentiometer output with
cps, 525 va.
360 deg per 1OO knots.
26v ac plus or minus 2.5, 400 cps
Drift Angle
28v dc plus or minus 2.5, 100 ma (max)
Visual: Displayed on Indication as
pointer an expanded scale.
INSTALLATION CONSIDERATIONS
Electrical: Synchro output with scale
factor of one deg shaft rotation per
Not available.
deg of drift angle; Synchro output
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Radar Receiver-Transmitter
1
7-5/8
3-9/16
12-9/16
13-3/4
RT-604/APN-144
Antenna AS-1144/APN-144
1
12
5-1/2
22
14-3/4
Frequency Tracker 1
7-5/8
7-1/2
19-9/16
42
CV-l058/APN-144
Indicator, Drift Angle-
1
3-1/4
3-1/4
6-1/2
4
Groundspeed
ID-884/APN-144
Mount, Receiver-Transmitter
1
9
4-7/8
15-5/8
2-3/4
MT-2460/APN-144
Mount, Frequency Tracker
1
9-5/16
8-1/2
22-5/8
5
MT-2461/APN-144
REFERENCE DATA AND LITERATURE
Technical Orders:
12P5-2APN144-2
12P5-2APN144-3
12P5-2APN144-4
12P5-2APN144-501
AN/APN-144: 2
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