Silva Ranger Compass
Features
- Traditional base-plate compass, curved at the back end for perfect fit in the hand
- Detachable safety-release lanyard
- Sapphire jewel bearing for friction free movement of the compass needle
- Durable hot-stamping of scales/graduations
- Rubber grip for easy handling
- Built-in magnifier for precision map work
- Luminous markings enable night time navigation
- Patented red/black orienting lines inside the rotatable compass housing
- 360° graduation
- Map measuring scales: mm, 1:50k and 1:25k
- 1° accuracy
- The needle is made from finest Swedish steel with high quality magnetic features
- Use-anywhere declination scale inside the capsule
- Robust material that withstands tough treatment and conditions
- Waterproof
Specifications
| Dimensions | 10.7 x 5.4 x 1.1cm |
|---|---|
| Average Weight | 33g |
| Technologies | The Silva 1-2-3 System The easiest way to set a course towards the lake is with a simple and safe system used by expeditions, youth organisations, mountain guides, armies, orienteers and other navigators the world over: the Silva 1-2-3 System®
NOTE: If using a mirror-sighting compass: angle the mirror/lid approximately 45 degrees towards yourself and hold with straight arm out in front of you. Now, while looking in the mirror to see that the needle aligns with the red/black N/S arrow, sight above the mirror (using the sight) towards an object in the field in line with the direction of travel. Magnetic declination and how to compensate for it. The difference, between Geographic North (North/South map meridians) and Magnetic North (where the North end of the compass needle points), is called declination. The amount and direction of declination is shown on the map. For example, 20 degrees. For Easterly declination, adjust as follows: With the declination scale inside the capsule (Field, Ranger, etc.) turn yourself until the North end of the compass needle points to 20 degrees on the ”E. decl.” scale. Now, the direction of travel arrow is pointing in the correct direction. With compasses that have a declination adjustment, simply use the screwdriver in the lanyard safety release to make the adjustment. Pull the safety release apart and use the screwdriver to turn the screw on the bezel until the bottom side of the North Arrow meets the 20 degrees Eastern declination scale. Remember to use the North/South lines at the bottom of the bezel and NOT the North Arrow as map North reference lines when taking the bearing on the map. |
