Proper use of a compass is a basic but essential skill in backcountry hiking, which often involves getting off marked trails The lensatic Read more. 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.
|Country:||Central African Republic|
|Published (Last):||19 April 2013|
|PDF File Size:||19.21 Mb|
|ePub File Size:||14.9 Mb|
|Price:||Free* [*Free Regsitration Required]|
Watch this video on YouTube Another useful method is to orient your map to north by using your compass. We’ll start from the beginning, and go through everything you need to know to find your way over the terrain.
Perhaps this is why most military personnel are trained to plot bearings using a protractor on a Coordinate Scale and Protractor tool. Watch this video on YouTube Choosing Landmarks The landmark you choose can be anything visibly noteworthy. How to Use the Engineer Compass.
You want to go cross country directly to Devil’s Wash Basin, a deep and beautiful lake you’ve heard a lot about. If you don’t, visit the page just hyperlinked. Check that the dial is floating freely.
Pay particular attention to the surface your are working on. As long as you can hold the compass level and steady, the exact grip doesn’t matter. Aa this task, hoe lensatic compass really shines. 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. Want a free ebook on Land Navigation?
Steady the compass by allowing the hand holding the compass to rest in the cupped palm of your other hand. How to Calculate Azimuth. Nowusing a straight edge, draw the bearing line and extend it in the desired direction.
Two-hand Hold lensatjc the Lensatic Compass. When you use a compass to figure out the direction to a landmark, people call this shooting an azimuth.
Return from Lensatic Compass to Home. The azimuth is the angular measurement of an object’s direction in relation to the viewer.
The usual precautions about magnetic objects in the vicinity of the compass should be taken. When we plot it on the map, we will start plotting at the known location, and extend the bearing line back towards the unknown location.
Make an “L” shape with the index finger and thumb of your other hand. 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.
This is known as a back bearing. Things Needed Engineer lensatic compass. My page, fully illustrated book is yours for the asking. Use a compass to get a general sense of direction for North, South, East, and West. Then use a straight edge to draw and label the Magnetic North Reference line. North is 0 degrees, so a declination of 10 degrees west would mean that you would point at degrees to point at true north. Note the red number on the dial, which is the degrees under the black index line on the compass face.
Make a mark with your pencil at the notch on the end furthest from the sighting wire. Watch this video on YouTube There are different ways of holding the compass.
Holding the compass up to your face, angle the rear sight so that you can read the compass dial clearly through the lens while peering through the sighting slot and lining your distant target the water tower, in this case up with the sighting wire. 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. Imagine that you want to hold it as if it were firmly mounted in that position. Lensaatic of the components’ terms are used compass the explanations below.
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. The smaller the angle to Magnetic North, the more likely the diagram will ude a larger angle.
Plotting a bearing on a map using a round lensatic compass
Point of Interest In addition to degrees to measure directions in a circle, the military also uses 6, mils. Some compasses can be adjusted to ocmpass declination, so after adjustment, a reading of 0 degrees would point at true north. Next Best Ways to Build a Campfire: To determine our location lenatic are going to combine two pieces of information on our map. To use your lensatic compass to find the direction of your intended azimuth which you probably got from your map, using your protractor:.
How to Read an Engineer Compass. I guess the military needs the extra accuracy now and then say, for example, to precisely place artillery fire.
Rough direction to the cabin. To find directions from your map, you’re going to need a protractor, a special instrument used for measuring angles. The cover protects the compass from damage and also contains a yo stretched from top to bottom.
Using a Lensatic Compass
Just use the tape to mark the angle you need to point the needle in order to be pointing at true north. Open the compass completely and hold it level in front of you.
A compass is a floating magnetic needle that always points toward a magnetic north pole. It may take a while to get it, and you should practice in a safe location before relying on one, but few devices are more able to help you navigate your way to safety.
Put that hand up to the compass, steadying the compass by placing your index finger along the compass’s side, and wrapping your thumb between the bezel ring and the rear sight.
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.