Silva Expedition 55 6400/360 Compass

This compass is probably the most resourceful compass in the world for artillery; target acquisition and command posts.

The 55 is a unique compass featuring both an optical precision 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.

The compass has a luminous graduation ring and markings for compass reading in the dark. Once activated by daylight/ flashlight it will give light up to 4 hours of light. 6400 mils on the graduation ring and 6400 mils + 360 degrees on the sighting scale.

Includes a Slope card calculate avalanche risk, determine how challenging your journey will be. Scale Lanyard includes 2 scales (1:25, 1:50), soft and bendable, easy to place directly on to your route on the map.

Features

• Type of compass:SILVA 1-2-3 System, base-plate compass
• Lensatic precision sighting system
• Liquid filled capsule
• Sapphire jewel bearing
• High quality steel needle
• Hardened steel pivot
• Magnifying lens:Yes
• Luminous markings:Yes
• Luminous graduation ring:Yes
• Illumination / active time after activation in light: 4 hours
• Silicon friction feet: Yes
• Patented red/black N/S lines in capsule
• GPS scales
• Scale lanyard (1:25, 1:50)
• Slope card

Technical Specifications:

• Graduation Outer ring: 6400
• Sighting scale: 6400/360
• Resolution degrees / mils Outer ring: – / 50
• Precision sighting scale: 1 / 20
• Measuring scalesBase plate: mm, inch
• UTM position plotting scales (Romer scales)1:25k, 1:50k, 1:40k
• Settling time from 90 degree angle within +/- 3 deg   4 sec
• Settling time from 90 degree angle to complete rest   6 sec
• Accuracy+/- 0,5 degree (8,9 mils)
• Water resistance:Waterproof
• Altitude use:5000m@-15 C
• Impact resistance:30g in X Y Z directions and free fall from 1.5 m height into gravel
• Temperature operating range: -30 to +60 C
• Material: Acrylic
• Size (mm) 126x60x16
• Weight:  39 grams