Silva Expedition 4 Military Compass

The 'full-sized' base plate compass for experienced navigators – used by NATO Forces around the world. Mainly used by the infantry as a soldier’s or officer’s compass. Additional features include measuring scales for positioning (GPS), graduated in mils and degrees (6400/360), magnifying glass and rubber feet for precision map work. Luminous compound that need to be activated by daylight/flashlight etc. Will give light up to 4 hours.

Type of compass: Silva 1-2-3 System baseplate compass
Compass capsule / needle
Sighting System: No
Magnifying lens: Yes
Declination adjustment: Decl scale in capsule
Clinometer: No
Illumination / active time after activation in light: Yes - 4 hours
Luminous compound: Tritium compound 80 mCi
Silicon friction feet: Yes
Other: Patented red/black N/S lines in capsule

Available graduations: 6400/360 (360 inside the capsule), 6300, 360
Resolution degrees / mils: 2 / 50
Measuring scales on base plate: mm + inch
UTM position plotting scales (Romer scales): 1:25k, 1:50k, 1:40k
Settling time from 90 degree angle within +/- 3 deg: 2.7 sec
Settling time from 90 degree angle to complete rest: 5 sec
Accuracy: +/- 1 degree (17.8 mils)
Waterproof: IP68 - (more than 100 m)
Altitude use: 5000m @ -15 C
Impact resistance: 30g in XYZ directions and free fall from 1,5 m height into gravel
Temperature operating range: -40 to +60 C
Material: Acrylic
Size: 126x60x10 (mm)