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.

Author: Tauramar Kagalkis
Country: Nigeria
Language: English (Spanish)
Genre: Environment
Published (Last): 2 June 2018
Pages: 423
PDF File Size: 17.23 Mb
ePub File Size: 18.13 Mb
ISBN: 550-1-94298-885-8
Downloads: 82213
Price: Free* [*Free Regsitration Required]
Uploader: Fekree

Return from Lensatic Compass to Home. The azimuth is the angular measurement of an object’s direction in relation to the viewer.

Plotting a bearing on a map using a round lensatic compass

Nowusing a straight edge, draw the bearing line and extend it in the desired direction. Let’s say you see a water tower off in the distance.

Use a straight edge aligned with the sighting wire lenastic central pivot point. To do this we need to establish an accurate Magnetic North reference line on the map.

Making sure you don’t move to change directions, turn the glass compass housing until the short luminous line is directly lined up with the luminous magnetic arrow. My page, fully illustrated book is yours for the asking. The need to carefully orient the map, and the precautions about metal in the fompass of the compass makes this type of plotting more difficult than most other methods.

Face the object that you want to measure using the engineer compass. Make sure you include it when you say or write a bearing. Using hwo compass we have sighted a bearing to our cabin of mils from Magnetic North.


Plotting a bearing on a map using a round lensatic compass

Use the engineer compass to find the direction by lining up the compass with an object. The us the angle to Magnetic North, the more likely the diagram will show a larger angle. When you use a compass to figure out the direction to a landmark, people call this shooting an azimuth. This is known as a back bearing. What Are the Parts of a Sextant? Note the red number on the dial, which is the degrees under the black index line on the compass face.

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.

Using a Lensatic Compass

Hold the compass steady and level, and up hse your face. If you don’t, visit the page just hyperlinked. Two-hand Hold of the Lensatic Compass.

Our bearing was taken from an unknown location, towards a known location. Sometimes even a metal belt buckle can interfere with a compass, which can result in an incorrect reading. 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.

Make an “L” shape with the index finger and thumb of your other hand.


Enroll in my personalized step-by-step video-based online course. The cover protects the compass from damage and also contains s wire stretched from top to bottom. Open the compass completely and hold it level in front of uuse.

Place your thumb through the thumb loop, hold your index finger alongside the body of the compass, and support it with the rest of your fingers. Refer back to this “reality check” occasionally usf plotting to make sure what you are doing makes sense.

Point of Interest In addition to degrees to measure directions in a circle, the military also uses 6, mils. Robin Reichert is a certified nutrition consultant, certified personal trainer and professional writer. Imagine that you want to hold it as if it were firmly mounted in that position.

One of the difficulties inherent to using a compass is that magnetic north is not the same as true north. How to Calculate Height With Sextant. Instead you will use an imaginary line that runs t the center of the compass. Declinations to the west are subtracted from the degrees you are reading, and declinations to the east are added. Hold it square and straight in front of you like you mean business.