Geodetic
Silva Expedition 4 Military 6400 Compass
Silva Expedition 4 Military 6400 Compass
The Silva Expedition 4 Military Compass is a full-sized base plate compass for experienced navigators - used by NATO Forces around the world.
Features:
- Measuring scales for positioning (GPS)
- Graduated in miles and degrees ( 6400/360)
- Magnifying glass
- Rubber feet for precision map work
- Gives light for up to 4 hours - luminated by daylight/ flashlight etc.
| Specifications | |
| Accuracy | +/- 1° (17.8 miles) |
| Altitude use: | 5000m @ -15°C |
| Clinometer | No |
| Declination adjustment | Declination scale inside capsule |
| Graduation | 6400°/360° (360° inside the capsule), 6300°, 360° |
| Illumination | 4 hours after activation in light |
| Impact resistance | 30g in XYZ directions and free fall from 1.5m height into gravel |
| Magnifying lens | Yes |
| Material | Acrylic |
| Patented red/black N/S lines in capsules | Yes |
| Resolution degrees / miles | 2 / 50 |
| Scales | mm, inch |
| Settling time from 90° angle to complete rest | 5 sec |
| Settling time from 90° angle within +/- 3° | 2.7 sec |
| Sighting System | No |
| Silicon friction feet | Yes |
| Size | 126 x 60 x 10 mm |
| Temperature operating range | -40 to +60°C |
| Type of compass | Silva 1-2-3 Systwem baseplate compass |
| UTM position plotting scales (Romer scales) | 1:25k, 1:40k, 1:50k |
| Water vresistance | IP68 - (more than 100m) |
| Weight | 36 grams |
