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 TM 9-1240-375-34&P
0002 00
US CUSTOMARY
METRIC
M171A1 Telescope and Quadrant Mount
Cross level adjustment:
Left................................................................................................
178 mils
Right ............................................................................................
178 mils
Depression ........................................................................................
-270 mils
Elevation ...........................................................................................
+1333 mils
Pitch level adjustment:
Aft ................................................................................................
178 mils
Fore ..............................................................................................
178 mils
Batteries:
Quantity/Cell Size .......................................................................
1 each/size "C"
Voltage .........................................................................................
3 volts (each)
Weight:
Adapter assembly .......................................................................
3.25 lb
1.47 kg
Mount ..........................................................................................
75 lb
34.02 kg
Optical instrument support .......................................................
2 lb
0.91 kg
M172/M172A1 Telescope and Quadrant Mount
Boresighting:
Azimuth .......................................................................................
18 mils
Elevation .....................................................................................
15 mils
Cross level adjustment ....................................................................
34 degrees
Weight:
Adapter assembly .......................................................................
4.75 lb
2.15 kg
Mount ..........................................................................................
27.5 lb
12.47 kg
M137 Panoramic Telescope
Field of view .....................................................................................
10 degrees
Movement:
Azimuth counter ..........................................................................
6400 mils*
Azimuth (deflection) ....................................................................
6400 mils
Correction (AZ).............................................................................
95 mils
Elevation .....................................................................................
300 mils
Least increment reading (AZ) .....................................................
1.0 mils
Optical characteristics:
Clear eye distance........................................................................
0.88 in.
2.24 cm
Effective focal length:
Eyeshield ................................................................................
1.00 in.
2.54 cm
Objective .................................................................................
4.00 in.
10.16 cm
Exit pupil diameter......................................................................
7 mm
Field of view ................................................................................
10 degrees
Power .................................................................................................
4X
Radioactive material:
Max surface radiation .................................................................
0 millirad per hour
Tritium H3 ....................................................................................
5.1 curies
Weight................................................................................................
19 lb
8.62 kg
___________
*lncreasing counterclockwise.
0002 00-15
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