MIL-DTL-45500/5A
PUBLICATIONS
U.S. ARMY WEAPONS COMMAND
IEL11691450
-
Index of Inspection Equipment List
IEL11838579
-
Index of Inspection Equipment List
P11691450
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Packaging Data Sheet for gun,
Automatic 20mm: M197E1
P11838579
-
Packaging Data Sheet for Gun,
Automatic 20mm: M197
3.
REQUIREMENTS.
3.1 Material, construction and design. Guns and parts
shall conform to the material, construction and design
requirements specified on Drawing F11838579 (M197) or A12011591
(M197 w/o Barrels) and F11691450 (M197E1).
3.1.1
Functioning.
TABLE I.
Performance Requirements.
Gun Torque
Acceleration
Cyclic Rate
Stopping Time
(Max.)
Time (Max.)
of Fire
(Max.)
1,350 to
0.3 seconds
0.3 seconds
400 inch -
1,650 rounds
(from start
(from minimum
pounds at
per minute.
of gun
cyclic rate
1,350 rounds
(1500 rpm
rotation
of
per minute.
+ 10%.
fire to
to 1,350
rounds
complete
stop).
per minute).
3.1.2 Targeting and accuracy. The gun shall place 80
percent of the rounds fired (in a single burst of 100 ±5 rounds),
in an eight (8) inch diameter circle at a range of 1,000 inches
at any single cyclic rate from 400 to 1,500 rounds per minute for
accuracy, and the center of the 80 percent group shall be within
six (6) inches elevation, three (3) inches depression, and three
(3) inches left and five (5) inches right azimuth of the true
boresight point targeting.
3.1.3 Endurance. Guns shall fire 25,000 rounds, minimum,
for endurance. A series is 500 rounds using five (5) bursts of
100 ±5 rounds each.
TABLE II
Schedule of Replacement Parts (Not applicable)
2
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