How to Use a Military-Style Compass

When out in an isolated setting, you may encounter the need to establish your position and a path of advance. In this scenario, a military or lensatic compass could prove a vital tool for field survival. While the tactical use of such an instrument should be reserved for proper instruction, there are some fundamental points which the layman can use in operating it.

Instructions

• 1

  Open the compass. The military compass usually has a lid that must be opened in order to visually access the floating dial. The lid should be left at a position of 90 degrees to the dial. You should then place the compass at eye level at an angle of 45 degrees.

• 2

  Point the compass. As with all compasses, the device should be directed or pointed towards the desired direction. The needle of the compass will then point towards magnetic north. You can zero in more accurately on the nearest degree by observing the red line below the glass. The black line tells you the reading in mils.

• 3

  Keep the compass level. This is especially pertinent with a military or lensatic compass if you want to get a proper reading. You can do this by securing it against your cheek with your thumb, third and fourth finger. Some models have a thumb loop for more control. The other method is called the center hold technique and involves holding the compass directly in front of you about waist high and using the fingers of both hands to stabilize the device. Please see reference two for a pictorial demonstration. (see ref. 2)

• 4

  Avoid metal objects in your environment. All compasses will be thrown off by the presence of metals in the surrounding area. For soldiers in particular, accurate readings can be damaged by the presence of nearby vehicles, firearms or weapons, helmets or even power lines overhead. Try as best you can to conduct readings at a significant distance from these materials if possible and safe. (see ref. 2)