The Silva Expedition 4 - Military is a classic "full-size" base plate compass for experienced navigators. This one measures in mils.
Used by different defense forces around the world. 1:25k, 1:50k, 1:63.36k, mm and inch map measuring scales. Luminous points for navigation in the dark.
This compass is measured in mils.
- Silva 1-2-3 System baseplate compass
- Compass capsule / needle
- Magnifying lens - Yes
- Declination adjustment: Decl scale in capsule
- Active time after activation in light: 4 hours (luminous compound - Tritium compound 80 mCi)
- Silicon friction feet
- 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 in 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 (mm): 126 x 60 x 10
- Weight: 36g