Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
MK 8 MOD 2, MOD 4
Own Ship's Course - 1- and 36-speed
TECHNICAL DESCRIPTION
Relative Target Bearing - 1- and 36-speed
Mod 2 Data Output: Level- 2- and 36-speed,
The Mk 8 Mod 2 and Mk 8 Mod 4 are gyro-controlled
Cross-Level- 2- and 36-, or 2- and 72-speed,
instruments used to measure electrical values of level
Train Order - 1- and 36-speed
and cross-level with respect to the line-of-sight to the
Mod 4 Data Input:
target. This information is transmitted to a stabilized
Own Ship's Course - 1- and 36-speed
instrument, such as a radar antenna, to keep it aimed at
Train Order - 1- and 36-speed
the target in spite of the ship's pitch and roll.
Mod 4 Data Output: Level- 2- and 36-speed,
The stable element is an auxiliary equipment
Cross-Level - 2- and 36-speed, Deck Tilt
necessary to the installation of the larger radar
Correction - 1- and 36-speed
equipments such as Radar Equipments SM,SP, and SX
Mod 2 Operating Voltages and Power Requirements:
series. Mk8 Mod2 is furnished with conversion kit for 2-
115v,3-ph,60 cps, 10 amp; 115v, 1-ph 60 cps, 2.5
and 36-speed and for 2- and 72-speed.
amp; 115v, 1-ph, 60 cps, 3.8 or 0.5 amp
Mod 4 Operating Voltages and Power Requirements:
RELATION TO SIMILAR EQUIPMENT
115v, 3-ph, 60 cps, 10 amp; 115v, 1-ph, 60 cps,
1.0 amp
None.
INSTALLATION CONSIDERATIONS
TECHNICAL DESCRIPTION
Determined by the equipment with which the stable
Mod 2 Data Input:
element is associated.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Mk 8 Mod 2
Stable Element
1
45-7/8
31-1/4
31-1'4
535
Frequency Converter CAV-211531
1
19-1/4
23-3/4
12-5/8
280
Control Panel
1
25-1/16
21-11/16
15-13/16
Mk 8 Mod 4
Stable Element
1
46
30
30
550
Frequency Changer Mod 4
1
10
23-1/2
10
168
Control Panel
1
25
21
15
REFERENCE DATA AND LITERATURE
Technical Manual:
NAVSHIPS 900967
MK 8 MOD 2: 2
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