TM-9-1240-401-34-P
TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 1993
TM-9-1240-401-34-P - Page 32 of 590
TM 9-1240-401-34&P
1-9. EQUIPMENT DATA
M146 TELESCOPE MOUNT
PHYSICAL CHARACTERISTICS
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19.875 in. (504.8 mm)
Width .
...............................................................................................................................................
6 in. (152.4 mm)
Height.
. ......................................................................................................................................
6.25 in. (158.8 mm)
Weight.
. ..............................................................................................................................................
33 lb (14.97 kg)
ADJUSTMENT RANGES
Boresight elevation.
........................................................................................................................................
10 mils
Boresight deflection.
........................................................................................................................................
10 mils
M118A2/M118A3 ELBOW TELESCOPE
PHYSICAL CHARACTERISTICS
Length .
..........................................................................................................................................
38 in. (965.2 mm)
Width, including eyepiece .
................................................................................................................
18 in. (457.2 mm)
Height.
..........................................................................................................................................
7.5 in. (190.5 mm)
Weight .
...........................................................................................................................................
44 Ibs (19.96 kg)
OPTICAL CHARACTERISTICS
Power.
...................................................................................................................................................................
4X
Field of View .
........................................................................................................................................................
10°
Exit pupil diameter.
.
.......................................................................................................................
0.236 in. (5.99 mm)
Effective focal length:
Objective.
. .........................................................................................................................
7.037 in. (178.74 mm)
Eyepiece .
..........................................................................................................................
1.771 in. (44.98 mm)
MOVEMENT
Axial cant correction.
.........................................................................................................................................
+5°
Minor, level .
.....................................................................................................................................................
100°
Eyepiece arm operative range .
...........................................................................................................................
20°
1-22
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