PRECISION COMPASS. * LENSATIC *. PROVEN • RUGGED ACCURATE. CAMMENGA. FAX ( ANILINE AVE. HOLLAND, MICHIGAN Learn how to use the lensatic compass used by the US Military. I get lots of questions via email from people wanting to know how to use a lensatic compass, and I think I’ve covered that pretty well in a series of two posts.
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So, take your map and lay it down on a flat surface i.
Next, do the same for the second point. Making sure you don’t move to pensatic directions, turn the glass compass housing until the short luminous line is directly lined up with the luminous magnetic arrow.
Open the compass completely and hold it level in front of you. Hold the compass level by your thumb and index finger. I’ll get around to that one of these days. Keep doing this until you get to where you want to go. Face the object that you want to measure using the engineer compass.
A compass is a floating magnetic needle that always points toward a magnetic north pole. Raise the compass up to your eye. Sometimes even a metal belt buckle can interfere with a compass, which can result in an incorrect reading.
The lensatic compads is used by the U. At night, however, or in other periods of limited visibility fog, blizzard, etc keeping these two luminous bits lined up will be your only remedy. You need to write things down, draw lensafic, perform math, and make sure you do so with a reasonable degree of accuracy. So the tritium will continue emitting “light” for quite a long compaws before it goes completely dark.
Using a Lensatic Compass
Now, read the degree marking under the fixed black index line. Your compass is now set. Have no fear, the science here is sound a proven. To use your lensatic compass to find the direction of your intended azimuth which you probably got from your map, lensafic your protractor:.
Turn your entire body as a unit until your predetermined azimuth falls under the fixed black index line. How to Read an Engineer Compass.
Lensatic Compass Guide
Do not move your head, but raise and lower your eyes when taking the azimuth using an engineer compass. With the thumb loop all the way down under the compass, put the thumb of one hand all the way inside the loop, and place the index finger of that same hand along one side of the compass.
How to Calculate Height With Sextant. Next we’re going to talk about some of the uses of a lensatic compass, starting with the resection. Using your protractor or other straight edge, you draw a line from your current position in the direction of where you want to go.
Determining a Bearing, or “Shooting an Azimuth”. Point of Interest An “azimuth” is pretty much the same as a “bearing. Use a compass to explore, navigate, map terrain and mznual around the world.
How to Read an Engineer Compass | Sciencing
There’s a lot of room for error and mistakes, and it takes time, which is sometimes a very precious commodity. Warning Always double check your compass readings. The bezel clicks as it moves–three degrees for every click. Most lensatuc are aware that lensatic compasses are fitted with small amounts of tritium around the dial.
At the 24 year mark it will be another half of that, and so on. Open the cover completely and pull back the rear sight. The point where those lines cross is your location, and the accuracy of that location is only as high as the readings and calculations that you’ve made. Looking at the photo below, let’s say you’re at the north end of Sheeler Lake, where the penciled X is. Copyright Leaf Group Ltd. Let’s say lemsatic see a water tower off in the distance. You want to go cross country directly to Devil’s Wash Basin, a deep and beautiful lake you’ve lenswtic a lot about.
Place your thumb in the loop on the side of the compass. Hold the compass with your thumb fully in the thumb ring, and your index finger wrapped around and gripping the circular part of the underneath of the compass’s base.
One disadvantage is, unlike the orienteering compass, it’s not easy to make it double as a protractor, meaning you’ll have to carry a protractor with you. Steady the compass by allowing the hand holding the compass to rest in the cupped palm of your other hand.