How to use a military compass pdf

There are two methods to using a military compass, the center hold technique or the more accurate compass-to-cheek technique. 3, is the compass the Army uses for land Field Manual 3-25. Because the needle of a compass is magnetized, it will always point toward magnetic north. 5 Pull your elbows along your sides. If you’ve found your way to this instructional guide, you have probably recently become aware that your compass is called a lensatic compass and have asked how to use a lensatic compass. 2 Move the lens holder to the rear (90° from the base) ensuring the compass dial can move freely. hold the map and compass hand horizontal and at belly or waist height in the centre of your body. Rotate the dial so that the north arrow matches up with the red needle. When you remove your compass from the map and turn until the orienting arrow and red magnetic needle are lined up, you will be in the right direction. M1580c 15X80 compass Download PDF. You now understand how to use a compass to read your current heading and to take a bearing to a distance landmark.

Army training video from 1966 shows how to find your direction, orientation, and location with a mil-spec lensatic compass . MILITARY PRECISION LENSATIC . military M-1950 lensatic compass shown in this video is still in use today. Note the red number on the dial, Use a file to make a permanent notch at each end. Taking Bearings (Direct and Back) Taking a bearing refers to measuring the direction from one point to another, either in the field or on a map. 6 To measure an azimuth, turn your body toward an object, or in the direction you wish to move, pointing the compass cover in that direction. You can, therefore, use a compass to figure out your bearings and know which direction is north. 3. 5. remaining side of the compass, and the remaining fingers around the fingers of the other hand.

the map. 5) and a needle lifting lever. Now, take your map and draw lines (at the back azimuth angle you calculated) on the map through the features that you're using as reference points. The destination is somewhere along the line created by the base of your compass. Line up the edge of your compass on this line so that the travel arrow is in the direction you wish to travel, then twist the azimuth ring (which is simply the ring with the measured units of degrees on a compass) until north on the map and the orienting arrow are aligned. Cammenga makes the official compass used by the US Military. jpg) 3. Today we are going to continue from our last article on Reading and Associating Terrain and discuss compass selection for use in land navigation. By sight, it’s much simpler. Common Mistakes When Using a Compass.

Using the compass alone. When the compass is open and leveled, the needle floats freely upon its pivot and points to magnetic north. Place the protractor on the map so the top of the protractor is pointing towards North on the map. compass actually points. Together with engineer Gunnar Tillander, they Compass Techniques Techniques for Using the Lensatic Compass. S. How to Use a Compass The most important piece of gear to help you find your way. EXAMPLE: YOU WANT TO FOLLOW A BEARING OF 120 DEGREES. Point the direction-of-travel arrow straight ahead in the direction you are going, turn the compass dial until RED is in the Shed, and read the heading at the Index Pointer. Purpose - the purpose of a map is to provide information on the existence, the location, and the distance between ground features.

Change the values using [+] and [- Light] , accept with [Mode] . 7. 2. That means everything is lined up and I can follow the direction of travel arrow. STANDARDS: Orient the map to the ground using a compass. Rotate the map and compass together until the red end of the compass needle points north. 6. Its use amongst orienteers is still not ubiquitous – but should be. 4. How to Use an Orienteering Thumb Compass Introduction The “thumb compass” was a slow revolution in the sport of orienteering when it was first designed by Suunto in 1983.

The U. If you are going to use your compass with a map, then orient the compass to geographic north. Enter MENU by keeping [Mode] pressed in the TIME, ALTI & BARO or COMPASS mode. They are available in a range of finishes with a choice of either mils, degrees or dual graduations. One convenient feature is a liquid filled capsule that slows the needle down. When shifting from one format to the other we must take these two different angles into account. Each compass is fully repairable with spares readily available resulting in lower total ownership costs than Which Way North, Part IV - The Military Lensatic Compass I'm going to kick off our formal evaluation of compass accuracy with the a design that has been in continuous use for over 60 years and has seen use by millions of individuals. earth-fixed coordinate system, and displays the information to the user in geographic or military grid coordinates. Then place the tip of the thumb compass on your current map location while the longitudinal part of the compass housing (the line of travel) is oriented in the direction of your planned route to the next control and perpendicular to your body. degree heading (the compass should be re-calibrated annually) 6.

To measure azimuth, turn entire body toward the object, pointing the compass cover directly at the object. Align your compass along your Magnetic North reference line. This is a detailed and practical manual covering everything that an officer or NCO would need to know to make use of the various types of military compass that were used during WW1. First, open the compass to its fullest so that the cover forms a straightedge with the base. How to use a compass to walk in the right direction. To take a second bearing from the same location, the compass can be rotated on the tripod by loosening the Tripod Clamp screw and rotating the body about the mounting spigot. Learning how to use a compass is a basic skill, something everyone should know. MAGNETIC NEEDLE. Turn to face the object and do the steps for determining your heading. Using a compass in this way will guide you over terrain that you are acquainted with or if you know the general directions you need to travel before hand.

The cover will form a straightedge with the base. Even a pen in your pocket or battery in your watch or phone can interfere with the compass. . How to use a compass Lesson 1 - Using the compass alone. North, South, East and West. pdf. Origins Of The Army Lensatic Compass For several years I've been trying to piece together the history of the US Army's lensatic compass. Traveling by Compass. • The compass alone is a quick way to find An azimuth from a very far away distant landmark. PART 3 Advance Land Navigation Module 17 Additional Land Standards: Oriented the map to the ground using a compass so the north-seeking arrow of the compass was within 3 degrees (20 mils) of the angle shown in the grid-magnetic (G-M) angle of the declination diagram shown on the map.

HOLDING THE LENSATIC COMPASS IN THIS POSITION, ROTATE THE BEZEL UNTIL THE LUMINOUS INDICATOR IS OVER THE N ARROW OF THE DIAL. (b) Place your thumb through the thumb loop, form a steady base with your third and fourth fingers, and extend your index finger along the side of the compass base. Using the Centerhold Technique. Look at the figure and learn how they are. A lensatic compass is also known as a military compass, and these compasses are used to cross terrain that may not have trails or may be more challenging to PART 3 Advance Land Navigation Module 17 Additional Land Navigation Skills. You may have tried to learn how to use a compass before, following the “easy” 1… needs two intersecting lines map bearings need two intersecting directions. THESE ARE THE TRAINING MODULES. Disclosure, use or reproduction outside . • Sight to the target with the compass. The North-seeking arrow of the compass must fall within 3 degrees (20 mils) of the angle shown in the grid-magnetic (G-M) angle on the map's declination diagram.

1. This is a very easy lesson, and I would say, not sufficient for those who would like to travel safely in unfamiliar terrain. Photo: Wikipedia The following 30-minute U. Once you have that, you can use a map to determine where you need to go. Module 2 Topo Map Margin –what map margin data represents, map care, and how to properly fold a map. Raise the compass up to your eye. Military. The compass should be replaced into its stowage box after use. When the cover is closed, the magnetic needle is automatically lifted from its pivot and held firmly against the glass window. North is the most important.

Where the drawn line meets the edge of the protractor is a degree number. 3 Place your thumb through the thumb loop. K. PART 3 Advance Land Navigation Module 17 Additional Land Using The Cammenga Lensatic Compass With U. The lower end of the pin engages the lever and the upper end projects slightly above the body of the compass to engage the cover when it is closed, thereby automatically How to Use a Compass and a Map. The bearings should be set to the same bearings the compass reader set his or her compass to at the last marker. The pace walker will turn un l the BLACK side of the compass needle is within the shed. Ranger 3 is an easy to use troop compass for infantry, commando units and paratroopers, compatible with the Silva 1-2-3 system. The direction of travel arrow is now facing the bearing you captured and you can follow it to your destination. Binocular Product Manuals.

R. Depending on the requirement the compasses can be supplied with either a leather sling case or a fabric pouch. Get the best you can afford. Position the eyepiece at a 45-degree angle to the base. On the edge of the compass housing, you will probably have a scale. taken when the bubble is centered in the circular level. How to Use a M2 Military Compass By David Chandler ; Updated September 29, 2017 The M2 military compass has been in use for over a century and in service with the U. Compass M2. It is only a basic primer of how to use the Military Compass. Using the Compass-to-Cheek Technique.

Make sure that the orienting lines on the compass line up with the route toward your destination, as shown on the map. That is, take the azimuth you recorded and subtract 180 degrees from it, or 1600 mills if using a military lensatic compass. A round lensatic compass has no straight edge to align. . One advantage is it's probably more accurate when it comes to "shooting azimuths," meaning the act of determining the specific compass direction to a spot on the earth. 4 Rest the compass base on your extended thumb and align your index finger with the long edge of the compass. Instead you will use an imaginary line that runs down the center of the compass. This file was made using the text from the Army Compass Manual, and the pictures from the Marine Manual of Common Tasks. Your compass should come with directions on how to use it. The Vista and the KB-14 compasses, however, us a slightly different sighting method.

Hold the compass in position on the map, turn the dial so the meridian lines of the compass are exactly parallel with any meridian (North-South) line on the map, and the letter “N” on top of the dial is toward North on the map. Next, do the same for the second point. Using a compass to get a bearing to a distant target. azimuth is and how to convert azimuths in order to navigate using a compass and map. Trying to use your compass near metal objects such as weapons, belt buckles, zipper pulls. 9-4. If you want to learn Land Navigation in detail, either buy a STANDARDS: Orient the map to the ground using a compass. The lensatic compass, pictured in Figure 5. Orient the compass with the clear part along your current position. Open the compass cover containing the sight to a vertical position, making it form a right angle with the dial portion of the compass.

THE DIRECTION INDICATED BY THE OPEN COMPASS IS THE DESIRED COURSE. Holding the compass incorrectly. From 0 to 360 or from 0 to 400. Determining the bearing to an object is just like finding your heading. Some orienteers still use the older technology small rectangular “base plate” O compasses. If FRED points back to his or her partner, they got the right marker. The best thing to do is look where the travel arrow points and pick an easy to see object in it’s path. makes it easy to use with a map. The compass should be at stomach level. Lensatic Compass Parts The cover will form a straightedge with the base.

Next, undo the curled knob, and move the bearing to the top. As an item of individual equipment that guided millions of Soldiers across the battlefields of Europe and the Pacific in WWII, and continues in use by our Soldiers today, I've always felt the history of the lensatic compass deserved better coverage. When you want to use the instrument as a quadrant, all you have to do is mount the graduated arc with the other two screws (with the drawing to the front of the instrument) and tie the sinker to the upper screw. Tell the Soldier to use the G-M angle shown by the declination diagram if it exceeds 3 degrees (50 mils). POSITION THE 120 DEGREE MARK UNDER THE INDEX LINE. jpg) d. Due to every grid line pointing to a slightly different north, this variation is different on every map. Magnetic azimuths are determined with the use of magnetic instruments, such as lensatic and M2 compasses. The two basic techniques for using the lensatic compass are the center hold technique and compass-to-cheek technique. Follow the direction of travel arrow on the compass, keeping the needle aligned with the orienting When using a compass in the field we employ magnetic bearings – the angle from magnetic north.

military users. • The range finder is very easy to use and the data received from its use is invaluable. Read them. The lifting mechanism includes a needle lifting (locking) pin (fig. The cover will form To use a compass, hold the compass flat on your outspread hand in front of your chest. Compass selection is often driven by personal preference, much like some prefer one vehicle make and model to another. Conditions: pencil, paper, and a compass in daylight. Directions On How To Use Lensatic Compass >>>CLICK HERE<<< G-1. Compass 2. Now you can use the compass to follow that bearing to your destination: 6.

How to Use a Military Compass. (a) Open the cover to a 90-degree angle to the base. Module 1 Lensatic Compass –parts and features, and how to sight the compass by two different methods. With the map level, place the compass parallel to a North-South grid line with the cover side of the compass pointing towards A rare original WW1 British military compass manual, published in 1917 by the scientific instrument makers, E. Turn the whole compass, keeping one edge along your position, until the compass matches the maps north, and the meridian lines match North/South lines on the map. A compass with a rectangular base is easier to use with a map than a round compass. The term “lensatic” refers to the magnifying lens that helps you use the compass more effectively. Those are the degrees or the azimuth (or you may also call it the bearing in some contexts). Pull your elbows firmly into your sides; this will place the compass between your chin and your belt. c.

BINOCULARS WITH COMPASS & RANGEFINDER • This item is a luxury, BUT is a very useful luxury. Enter with [Mode] . It gets its name from the rectangular plate that the compass housing sits on. It should take between three and eight hours to complete the text, depending on your previous experience and knowledge. Take the time to go through this course at your own pace. How to use a compass and a map together With your understanding of how compasses work and how to read a map, it’s now time to combine that knowledge. We call it the Compass housing. This is called “boxing the needle”. M1050r /LPF 10x50 Download PDF. Watts of London.

In this era of technological gadgets, when everyone has a GPS or a smartphone with navigation apps on it, you might think that an old-school, basic compass is no longer needed. Scroll down to UNITS using [- Light] . Rotate the compass housing until the orienting arrow and lines point N on the map. CONDITIONS: Given a field table, a standard 1:50, 000 scale military map, a protector, a pencil, paper, and a compass in daylight. Here are a few tips on how to read a compass correctly, as explained by the Compass Dude: 1. 0 Honeywell This work contains valuable, confidential, and proprietary information. M750rc 7x50rc Military and LE. 0 07/10 Release 2. USING A COMPASS. Directions On How To Use Lensatic Compass >>>CLICK HERE<<< At this point, the compass is ready! 6.

Next, turn the degree dial so that the orienting arrow lines up with the magnetic arrow inside the compass. The edge you must be using, is the edge that is parallel to the direction of travel arrow. Two parts of this line include the sighting wire, which you can align with things that are visible on the map, and the center of the rotating compass card. They’re also called military compasses because this is the design used by the US Military. Figure 2. You can use a compass without a map, if you just need to go in a very general direction in a straight line. BRIEF SOLDIER: Tell the Soldier to orient the map to the ground using the compass. ! • Turn the ring to align the orienting arrow with the red end of the magnetic needle. Identify your point of destination on the map. To check, the pace walker will use his or her compass.

In the 1930s, two Swedish brothers, Bj ö rn and Alvar Kjellstr ö m, were at the top of the sport of orienteering, which requires accurate and fast use of a map and compass to fi nd various markers, or control points, in the terrain. Maps are typically made so north is up. We’ll be using our topo map for Sam Houston National Forest, a base plate compass with orienting lines, and the handy UTM plotter. Base plate – this is what the compass is mounted on and has rulers and scales on it to help you measure distance. Note that both ends of the needle are shaped like an arrow, Two-Hand Hold. To make a two-hand hold: 1. Raise the compass to eye level (Compass, Lensatic, US Army - 04. Without moving your head, or the compass, read the azimuth through the lens of the lens bracket, A lensatic compass, also called a military compass, is a more advanced and useful version of a magnetic compass. The compass was issued to officers, squad leaders and specialist troops only, although most troops received training in compass use for land navigation. Get Price And Support Online THE OFFICIAL U.

The lensatic compass is used by the U. Military Lensatic Compass. If you are heading to a mountain for example, point at it from your current position with the travel arrow on the compass. Adjust the compass for magnetic declination and then follow the steps in Table 4-1. Open the cover completely and pull back the rear sight. Keep your head still and then read the azimuth through the lens bracket. This model is often part of standard equipment for military personnel around the world, thanks to its quality and durability. modern map and compass. Remember to add about a minute to your travel time for each time you check your compass. And you should have the letters N, S, W and E for North, South, West and East.

26, Map Reading and Land Navigation. 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. The USGI military lensatic compass works like a button compass in that it has. Align the center of the sighting groove in the lens bracket with the sight wire and a distant object - dotted line i (Compass, Lensatic, US Army - 04. Submit Before you can use a compass to navigate you need to be familiar with the main features. Forgetting to orient your compass to your map prior to determining your direction of travel. Hold the compass level by your thumb and index finger. Land Nav Task 10 - Orient a Map Using a Lensatic Compass Standards: Oriented the map to the ground using a compass so the north-seeking arrow of the compass was within 3 degrees (20 mils) of the angle shown in the grid-magnetic (G-M) angle of the declination diagram shown on the map. military since at least World War II. And then, put B somewhere along the same edge, like it is on the drawing.

Next week we are going to formally introduce the UTM grid. But when you're in the wilderness seeking out a specific destination, you'll U. This is followed by tightening the knurled knob and lining up the two illuminated sticks. The techniques employed when using the lensatic compass are as follows: a. It needs no batteries, works with any map, and even works without a map! While entire books have been written about navigating with a compass, every compass Align the edge of the compass with the starting and finishing point. It has its advantages and disadvantages over the orienteering compass . make them easier to use. In UNITS, scroll between the list items using [+] and [- Light] . Therefore instead of having a number in our head as a magnetic variation, you need to know how to work out the variation on the map that you are using interpretation, compass use, and familiarize you with the United States Geological Survey (USGS) topographic maps, and planimetric maps. Step Action 1 Open the compass so that the cover is fully extended.

With the map level, place the compass parallel to a North-South grid line with the cover side of the compass pointing towards Learning to use a compass and then letting it collect dust for 5 years does not equate to experienced hands regardless of the compass category. The table below lists the steps to perform the center-hold technique. How to Read an Engineer Compass. Line up the sighting groove in the bracket with the wire and an object in the distance. To change units: 1. M-1950 military lensatic compass does not use a liquid-filled capsule as a damping mechanism, but rather electromagnetic induction to control oscillation of its Use attack points at which you stop and compute your bearings. Maps Tony Wilks – Stourbridge UK – June 2005 e-mail: TonyWilks@aol. To convert grid to magnetic and magnetic to grid – all we do is either subtract or add the magnetic variation. Hold it at a height between your waist and your face, and close to your stomach. parallel to grid north.

Keep in mind that almost all maps are laid out with north to the top, and south to the bottom (if you’re not sure about the map’s orientation, there’s often a compass rose on the map First position the compass out in front of your chest with the direction of travel arrow aiming toward the mountain ridge in your line of sight. This is your azimuth. What you do, is that you put your compass on the map so that the edge of the compass is at A. 0 User’s Guide Document ID R2. Remove the compass from the map. com Aims and Objectives I am an experienced navigator and keen walker resident in the West Midlands, UK. A few of the sighting compasses below even allow you to use this sighting feature to make accurate clinometer (angle of inclination) readings. 2. If your compass has a sight, use this for more accuracy. The first thing you need to learn, are the directions.

Choose easily identifiable spots on the map as attack points – the edge of a pond, the end of a road, etc. You will use these notches to align your compass with a line on the map or to mark the location of a bearing line your are about to draw. Exit MENU with [Start Stop] . A classic military base plate compass. Magnetic card compass designs normally require a separate protractor tool in order to take bearings directly from a map. ! • Read the bearing from the ring at the index line. Or make a permanent scratch mark, paint line, or permanent marker line on each end. Place the center of the protractor where the drawn line crosses a vertical line on the map. To use this method-. When holding the compass, make sure that the baseplate is level and the direction-of-travel arrow points away from you.

Your elbow should be slightly bent and your arm relaxed. The Corps of Engineers Lensatic Compass was the most common style in use during World War II, particularly later in the war as the other models were phased out. Standards: the map. This is our MAGNETIC VARIATION. Main Compass Uses. Then, look at the travel arrow on the baseplate of the compass to tell you which direction you’re facing. Rotate your body until the magnetized needle is inside the orienting arrow. Follow the direction of travel arrow on the compass, keeping the needle aligned with the orienting arrow on the housing. Line up the point where you currently are with your point of destination, with one of the sides of the compass. Usually this is done with a folding mirror that allows you to see the compass capsule while viewing your target.

Introduction to Land Navigation . Compass Basics A compass is one of the most basic navigation tools any hiker can own. MN 340 N 320 300 280 W 260 240 220 200 S 160 140 120 100 E 80 60 40 20 Using a prismatic compass first entails selecting the bearing and opening its lid, then folding it flat. In an earlier post on this blog we discussed the various types of compasses and a bit of the developmental history that can be inferred by viewing the examples in my collection. These two steps set your compass for the degree reading to your destination. Given a military map, a lensatic compass, and a minimum of a eight digit grid coordinate, locate specific points on the land navigation course, per the student handout. Compasses with features such as rotating dials, built in declination settings, and direction of travel arrows simplify compass use. That way you can let the compass dangle and keep your head up while walking. Lensatic Compass or Military Compass Basic Use. Title: USING THE MILITARY LENSATIC COMPASS 1 USING THE MILITARY LENSATIC COMPASS Module 5 Terrain Relief PART 1 Basic Land Navigation 2 Module 5 Terrain Relief PART 1 Basic Land Navigation WARNING This presentation is intended as a quick summary, and not a comprehensive resource.

Submit Also known as the orienteering compass, this is one of the most common manual compasses used today, and is the one I’ll be using to explain the way to use a compass in this article. how to use a military compass pdf

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