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MIL-F-85668(AS)
TABLE III.
Major component list - Continued
Drawing
Major Component
Ammunition Feed System
189F788
167C1557
Slider Assembly
189F861
Torque Box Assembly
Coincidence Control Box
167C2095
3.1.4 Government furnished property. The following equipment will be
furnished by the Government for testing of the system (see 6.2.1):
a.
M55A1B1 or M51A3 20-mm dummy ammunition
b.
M14A1 ammunition links
c.
M197 20-mm 3-barrel gun (barrels may be shortened to facilitate test)
d.
M89E1 feeder
e.
M55A2 target practice (TP) ammunition;
3.2 Characteristics.
3.2.1 Performance.
3.2.1.1 Positioning accuracy.  For any position within the turret angular
coverage, the turret shall assume a position not greater than 5 roils in the
elevation or azimuth axes from a commanded static position.
3.2.1.2 Dispersion.  With the turret mounted on a test stand and zero
error signal applied to the turret, the system shall fire a continuous 100-round
burst that results in 80 percent of the rounds fired either falling within or
cutting a circle with a maximum diameter of 12 mils.
3.2.1.3 Firing rates.  With the turret in the positions specified in Table
IV, the system shall fire at a rate of 675 + 30, -75 shots per minute (spin).
6

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