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Compass 55 6400/360 (MS)
Description
Probably the most resourceful compass in the world for artillery; target acquisition and command posts.
The Silva Type 55 is a unique compass featuring both an optical (prismatic) sighting system and a SILVA 1-2-3 SYSTEM compass in the same unit, giving unbeatable precision and versatility in the field. Bearings can be taken with accuracy to within half a degree. 6400 mils on the graduation ring and 6400 mils and 360 degrees on the sighting scale. Luminous needle, bearing point, and bezel. Slope card for avalanche calculation, and graduated lanyard (1:25k and 1:50k) included
Accuracy: +/_ 0.5 degree (8.9 mils)
Altitude use: 5000m @-15C
Resolution degrees/mils: Outer ring 2/50 Precision sighting scale 1/20
UTM position plotting scales (Romer scales): 1:25k, 1:40k, 1:50k
Water resistance: IP68 (10m)
Settling time from 90 degrees to complete rest: 6 sec
Settling time from 90 degrees within +/_ 3 degrees: 4 sec
Weight: 39 grams
Click here for the Silva Navigation Guide - all you need to know about selecting and using a compass.