MIL-HDBK-162A
Volume 1
15 December 1965
Section 3
ITEM NAME: AIRCRAFT APPROACH CONTROL
CENTRAL
TYPE: AN/SPN-35
Roll Plane Excursions
Center Frequency: 60 mc
Electrical: plus or minus 15.5
Dyncamic Range: 50 db
Video Amplifier
Hydraulic: plus or minus 18
Gain: 10 db
Mechanical: plus or minus 20
Bandwidth: 500 cpc to 3 mc
Synchro Data Input: 400 cyc 2X and
Dynamic Range: 17v
36X (pitch and roll)
Vibration and Shock: No damage or impairment
Synchro Data Source: Ships MK 19
to operation when subjected to
Gyrocompass equip. or equivalent
sinusoidal vibration from 5 cps to 33
Hydraulic System
cps, or random-type shock encountered
Pressure: 1350 psi max
during overload transport or helicopter
Fluid Type: MIL-H-5606A
pick up, flight, or landing
Fluid Capacity: 3 qt
Transport: Cargo transport helicopter
Power Requirements: 440v, 60 cyc, 3-ph,
(HRS-1 or equivalent) or 2-1/2 ton M-35
3-wire, 5 amp per ph 120 to 2O8v, 400
truck
cyc, 3-ph, 4-wire, 15 amp per ph, 115v,
Gross Weight: 3186 lbs
60 cyc, 1-ph, 2-wire, 10 amp
Power Source: 120 to 208v, 400 cyc, 3-ph
4-wire, 4 kw primary source. Capable of
INSTALLATION CONSIDERATIONS
operating within pwr source variations
of plus or minus 10% and freq variations
Not available.
of plus or minus 5%, and will not be damaged
by a transient v of a duration not
greater than one sec
Radar Set AN/SPN-6 Stabilization Components
(Modified)
Stabilization Planes: Pitch and roll
Pitch Plane Excursions
Electrical: plus or minus 4.5 plus
or minus 3 milliradians
Hydraulic: plus or minus 7
Mechanical: plus or minus 9
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Azimuth Antenna AS-1292/TPN-8
1
Elevation Antenna
1
Obstruction Light
1
Radar Receiver-Transmitter Group
1
Ramp Reflector
1
Receiver-Transmitter
1
RT-660/TPN-8
Primary ac Power Switches (GFM)
3
Stable Data Cutout Switch (GFM)
1
Optical Target
1
Pitch and Roll Stabilizer
1
Stable Platform
1
Echo Box FR-68/UP
1
Target Simulator
1
AN/SPN-35: 3
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