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Page Title:
COMMANDER'S FRONT PERISCOPE FIELD-OF-VIEW |
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 TM 9-6920-737-10
EQUIPMENT DATA (Continued)
COMMANDER'S RELAY SIGHT
Same as Gunner's ISU.
COMMANDER'S FRONT PERISCOPE FIELD-OF-VIEW
a.
Instantaneous vertical
8 +0.16 degrees
b.
Instantaneous horizontal
23 +0.46 degrees
c.
Total vertical
12 ;0.24 degrees
d.
Total horizontal
32 +0.64 degrees
AUXILIARY SIGHT UNIT
a.
Field-of-View
10 degrees circular
b.
Eye Relief
27, +3mm
c.
Exit Pupil Size
6mm minimum
d.
Diopter Adjustment
4 diopters minimum
e.
Magnification
5x
f.
Resolution
12 line pairs/mm at 5% modulation, minimum
g.
Luminance
5 foot lamberts minimum
h.
Elevation Scan
-10 degrees +0.5 degrees to 60 degrees +1 degree
SHELTER DIMENSIONS (EACH UNIT)
a.
Width
=
8 feet
b.
Length
=
20 feet
c.
Height
=
8 feet
d.
Weight (Max/Shelter)
=
20,000 pounds
e.
Total Weight (max)
=
32,000 pounds
OPERATIONAL ENVIRONMENTAL CONDITIONS
a.
Internal Temperature:
590F (15C) to 860F (30C)
b.
Internal Relative Humidity:
20% to 70% (no condensation)
c.
External Temperature:
400F(-400C) to 1260F(520C) plus solar load such that the external
skin of the shelter reaches a maximum temperature of 1810F
(830C).
Change 2
1-21
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