Learn how to use the lensatic compass used by the US Military. Plotting a bearing on a map using a round lensatic compass. Sighting the bearing. To determine our location we are going to combine two pieces of information. Use a compass to explore, navigate, map terrain and travel around the Engineers, the engineer compass is also called a lensatic compass.
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To do this we need to establish lenwatic accurate Magnetic North reference line on the map. Note the red number on the dial, which is the degrees under the black index line on the compass face. The reason you want to set up the compass rather than just keep your eyes on the landmark is because your vision may become obscured.
Open the compass completely and hold it level in front of you.
Lensatic Compass Guide
My page, fully illustrated book is yours for the asking. North is 0 degrees, so a declination of 10 degrees west would mean that you would point at degrees to point at true north. Or make a permanent scratch mark, paint line, or permanent marker line on each end.
A lensatic compass, also called a military compass, lennsatic a fompass advanced and useful version of a magnetic compass. That way you skip the math, the protractor, the lines, and get it all done quicker. Keep your head still and then read the azimuth through the lens bracket.
Turn the compass cover more or less perpendicular to the base. How to Read an Engineer Compass. We will be orienting our map with Magnetic North. Watch this video on YouTube Another useful method is to orient your map to north by using your compass. The bezel clicks as it moves–three cimpass for every click.
In the daytime, you’ll normally find something in the distance on your azimuth and walk to it, so you don’t have to keep staring at the compass. I get lots of questions via email from people wanting to know how to ldnsatic a lensatic compassand I think I’ve covered that pretty well in a series of two posts. Just use the tape to mark the angle you need to point the needle in order to be pointing at true north.
This, in a nutshell, is how to perform a resection lensqtic a lensatic compass.
How to Use a Lensatic Military Compass – Navigate Safely in the Wild
Next, do the same for the second point. Rough direction to the cabin.
Proceed to that target. An “azimuth” is pretty much the same as a “bearing. Make a mark with your pencil at the notch on the ohw furthest from the sighting wire. 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.
Check that the dial is floating freely.
Lensatic Compass Guide
Determining a Bearing, or “Shooting an Azimuth”. I keep one in my truck and one in my bug-out bag because they can save your life.
How to Hold a Lensatic Compass.
The mils are in black, and are the outer measurements on the ring. To use your lensatic compass to find the direction of your intended azimuth which you probably got from your map, using your protractor:. Extend your other index finger alongside the compass body and wrap the fingers of that hand around the fingers of your first hand. Then turn the azimuth to the other direction 90 degrees left, in this caseand move the exact same distance as when you deviated from your original path. We know that we are somewhere along the shoreline of the lake.
In our example at the lake, our cabin is NE of our current location.
There’s a lot of room for error and mistakes, and it takes time, which is sometimes a very precious commodity. Hold it square and straight in front of you like you mean business. Use a compass to explore, navigate, map terrain and travel around the world. Learn Land Navigation Now. You want to go cross country directly to Devil’s Wash Basin, a deep and beautiful lake you’ve heard a lot about. Steady the compass by allowing the hand holding the compass to rest in the cupped palm of your other hand.
It’s important to hold your compass stable, squarely in front of you, and level. In order to detect any errors we may have made, it is recommended that you plot at least one additional bearing to a different known location.
Pay particular attention to the surface your are working on. It has replaced radium now recent decades after it was discovered that lensaic exposure is linked to an increased occurrence of bone cancer. Keep doing this until you get to where you want to go.
All you do is take you compass and line it up from your current point to your desired destination and look at the compass reading. You want to find your position using the technique of partial resection, so you need to know that tower’s bearing with a high degree of accuracy.