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Page Title:
Gun laying on moving target and tracking accuracy |
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|  MIL-T-62222(AT)
requirements shall be met by the gunner's and commander's controls and by the manual controls
as specified in table IV (see 4.6.17.3.4.2.1).
3.5.3.4.2.2 Gun laying on moving target and tracking accuracy. With the tank in a stationary
position, the time required to lay the gun sight reticle within the borders of a moving target from
an established lead angle shall not exceed 3.5 seconds in any instance as specified in table V.
The target shall be as specified in the table and shall be moved over a horizontal crossing course.
The lead angle shall be established with the line of sight aimed behind the moving target at
which time the line of sight may be stationary or moving at a speed equal to or less than the
target speed. After the reticle has been positioned within the borders for the length of the course
in accordance with percentage of time on target specified in the table. This requirement shall be
met with the gunner and commander power controls (see 4.6.17.3.4.2.2).
TABLE IV.
Gun laying on stationary target.
Layoff mils
Average time seconds
Position
Azimuth
Elevation
Manual
Power
operation
operation
1
0
10
2.0
2
2
25
10
5.0
5
3
25
10
5.0
5
4
100
0
4.5
4
5
400
0
13.5
5
6
800
0
6
7
1600
0
8
8
3200
0
13
TABLE V.
Gun laying on moving target and tracking accuracy.
Percent
Traverse
Established
Target
Target
Target
Target
Length
of time
rate
lead mils
size
size
range
velocity
of
on
mils/sec
mils
centi-
meters
mph
course
target
(ref)
(square)
meters
meters
(square)
0.5
1.0
0.25
45.72
1828.8
2.0
45.72
90
100
1.0
2.0
1.25
228.50
1828.8
4.0
91.44
3.3
7.5
1.25
228.50
1828.8
13.5
182.88
100
9.8
20.0
1.25
228.50
1828.8
40.0
182.88
100
100
19.8
7.5
1.25
34.29
274.32
12.0
365.76
100
32.6
10.0
1.25
34.29
274.32
20.0
365.76
65.2
20.0
5.0
137.16
274.32
40.0
365.76
100
15
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