A: You can use the arrow keys, or you can hold down shift and move in any direction to rotate a map around its axis. For this task, the lensatic compass really shines. (2) Keep the compass aligned as directed above while . Open the cover completely and pull back the rear sight. But lets say youre in the Muir Woods near San Francisco and youre facing true north. 5. As previously stated, orientating your map using visual features is only as good as the visibility on any given day. Turn the map and compass until the needle on the compass aligns with the north-south grid lines on the map. SPECS dimensions:4.1" x 2.4" x 0.6" |10.4 x 6.2 Read More. (1) Take the straightedge on the left side of the compass and place it alongside the north-south grid line with the cover of the compass pointing toward the top of the map. With your bezel ring set, stand at your starting point and . What are 2 ways to orient a map? My 159-page, fully illustrated book is yours for the asking. Lay the compass down on your map. We covered how to use a compass correctly, how to shoot your bearings, and the greatest map for navigating: the topo map, in Part I. SEE IT. When you point your compass towards true north, the needle will point a bit to the west. Line your lensatic compasss base plate up with the maps north-south lines. Sight an azimuth to any visible terrain feature that appears on the map. Shoot a bearing with your compass at the peak of Saddle Mountain. The skill allows users to find north with ease, which is crucial for navigation. PART 1 Basic Land Navigation USING THE MILITARY LENSATIC COMPASS Module 6 Map Information. ), but youre not sure where. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. It typically consists of a magnetized needle that is mounted on a pivot and placed inside a circular housing. Make sure the direction of travel arrow is pointing to the spot that youre trying to get to. Now that were putting compass to map, we need to adjust for it so that we can accurately orient and navigate. But not to you, I trust. (1) Compass-to-cheek method (figure C-21). This straightforward video shows both approaches to using a compass to orientate a map: All the latest inspiration, tips and guides to help you plan your next Advnture! Suunto M-3 Compass. If everything is matching up, youre onto a winner. The mils are in black, and are the outer measurements on the ring. Identify your approximate location on your map. Using the rotating bezel, turn it until the direction of travel arrow lines up with the north arrow. Once you are physically at your starting location, it's time to put your compass to good use. Lay the compass on the map, using the straight edge to create a line from your starting point to your destination. 4. Orienting, or aligning, the map is really easy with just 3 steps: Lay your map out on a relatively flat, smooth surface. Flip up the small magnifying glass. Center-hold. Execute your docs in minutes using our simple step-by-step instructions: Get the How To Use A Lensatic Compass you need. Isnt that a little black arrow outline? While this doesnt technically register as an electronic, were going to treat it like one. Adjust the compass bezel so that north on the compass corresponds to north on the map. Turn the bezel on your compass so that north on the compass points to north on the map. Once you've got the bearing you can transfer it to the map. Go to your map. durability, and its hyper-accuracy in land. From point A to point B, thats your bearing. Related Tags. The fundamentals of using a map and compass to find your way around. When you have a line location, you know youre on a maps recognizable line (trail, ridge line, etc. Place the thumb of the other hand between the rear sight and the bezel ring; extend the index finger along the remaining side of the compass, and the remaining fingers around the fingers of the other hand. Aligned the side of the compass with one of the north-south grid lines. Turn your map so that north on the map, points in the same direction as the needle. Some of the components' terms are used in the explanations below. 3. The bezel clicks as it moves--three degrees for every click. 3. Use the lens to look through the sighting line to find another landmark, and repeat until you reach your destination. You can use it to find your bearings in any direction you need to go. Youll notice the north/south symbol on a corner of your map with a straight 90 line going up. When your compass cant adjust for declination, you may make your own declination arrow out of masking tape and attach it below your compass under the right declination degree hash (This will only work if your compass has a clear base). Next, ensure youre happy with your judgment by matching other physical features in the landscape to the map, such as crags, glaciers, waterfalls, lakes and rivers. Use a Compass to Plot Bearings on a Map. The angle between true north and magnetic north is declination. The My Open Country name is registered with the U.S. Patent and Trademark Office. Once you are physically at your starting location, its time to put your compass to good use. But heres where things get tricky: the angle of declination changes depending where you are on the earth. From this diagram, we can see that our compass would point to magnetic north a little over 13 degrees to the right of "straight up" on the map (grid north). ), Set Your Compass for Your Intended Azimuth. Look at the index line and read the number. Procedures. 3. Most lensatic compasses are designed to withstand moisture to a certain extent, but nobody makes them perfect. Step 2. Well, youre going to have to do some math with all your bearings to make sure you get a true bearing. To begin, use your compass to locate a peak on Saddle Mountain. If your compass doesnt have a declination adjustment key, simply make the adjustment on the spot. When orienting a map, our aim is to position it so that the north-south grid lines on the map (eastings) are aligned north-south. The instructions on this page might make orienting a map seem a highly technical thing. Most people have never heard of them, but soon enough, youre going to be a master at using them. Step 1. So in this episode, well go through the abilities youll need. When it comes to how to orientate a map, there are two main ways to do it. What happens if you dont compensate for declination with your compass? With the map in a horizontal position, take the straightedge on the left side of the compass and place it alongside the north-south grid line with the cover of the compass pointing toward the top . 5. 2. 3 . Throughout this procedure, were not utilizing it at all.). The United States military needs to know how to navigate on land when all digital systems fail. Once you know that you're facing north, rotate the compass so that the luminous line is over the 170-degree mark. 4. Spread out your map. In Part I, we covered how to properly use a compass, how to shootyour bearings, and the best map for navigating: the topo map. It is the bread and butter of navigation and a good habit to get into every time you set off in any given direction. In this situation, you can use your compass to work out which direction magnetic north is and orientate from there. We still need to understand where we are in reference to our map how to orient ourselves before we can start really navigating, which well cover in Part III of this series. Declination is the angle formed by true north and magnetic north. Designate your starting and ending points on the map. You can, however, see the two points on your map. Place your compass on your map with the edge of the baseplate parallel to the north-south meridians on the map. That would be 130. Navigation has taken on many forms over the years. This is because it is prepped to point instead to magnetic north once it's lined up with your compass needle. Now, hold the compass level and squarely in front of you. Orienting the Map with an Orienteering Compass. The lensatic compass must always be held level and firm when sighting on an object and reading an azimuth. The first step in orienting ourselves with our map and compass is to double-check that north on the map corresponds to north in our landscape. Want a free ebook on Land Navigation? Keep doing this until you get to where you want to go. Because most of the components are housed in a casing, moisture can wreak havoc once its in there. Determining a Bearing, or "Shooting an Azimuth", Using Your Compass Sights to "Shoot an Azimuth". Looking at the map is an easy way of finding which direction north or east are relative to your current position. Your map is now aligned to magnetic north. Check the declination of your local location on your map or on a website. On the map, you are where the line connects with the highway. If you have already adjusted your compass for magnetic declination, your map is now oriented and youre good to go. Most compasses are marked with the four cardinal. The fact that they glow in the dark (especially, if they're the tritium kind which will glow for years without having to be exposed to light) means you can use your compass without a light for night navigation. We only recommend products we genuinely like, and purchases made through our links support our mission and the free content we publish here on AoM. Lets say you know youre southeast of Saddle Mountain and northeast of some smaller mountains. Now hold the compass on the map and rotate yourself and the map/compass together until the orienting arrow and the compass needle are aligned to magnetic north. relation to a map. Map Reading and Land Navigation: FM 3-25.26. At that point, leave it out in a spot where it can really dry overnight until you know the internal components are no longer moist. 2. Now, read the degree marking under the fixed black index line. Lets say youve hiked the peak of Camels Hump in Vermont. Now its time to use the lens. 9-4. 3. Well, that is, unless you're doing something silly like holding the compass backwards. It will make it easier to understand why we adjust for declination in the first place. Draw a line towards the roadway youre on using the side of your compass. In this case, it would be 204 (24+180). . My 159-page, fully illustrated book is yours for the asking. 3. slide 1 to 3 of 3. 5. 2. You cant see the end point in your terrain, so you cant shoot a bearing on it. 3 Navigation: Compass Basics Read, Understand, and Remember! We need to compensate for the compass now that weve placed it on the map so that we can appropriately orient and travel. As you can see, the declination of the location Im in is 4E. Before we do that, lets take a closer look at declination. UK readers, youre in luck. Open the cover completely and pull back the rear sight. The North-seeking arrow of the compass must fall within 3 degrees (50 mils) of the angle shown in the grid-magnetic (G-M) angle on the map's declination diagram. First things first. Oncein pre-GPS dayswhile on a canoe trip through the chain of lakes in Canadas Quetico Provincial park, our professional guide expertly got us through about 100 miles of wilderness, without ever using a compass. This visualization has been approved for public release.Storyboard developed from the STP 21-1 Soldier's Manual of Common Tasks Warrior Skills Level 1, September 2017Approved by the Center for Initial Military Training (CIMT) G-3/5/7, Initial Entry Training, Fort Eustis Virginia. Survival Compass, Military Compass Hiking, Orienteering Lensatic Compass, Waterproof Navigation Compasses, Survival Emergency Luminous Sighting Compass. Assume youre southeast of Saddle Mountain and northeast of a few of lesser peaks. See that little black outline of an arrow? USING A COMPASS Magnetic azimuths are determined with the use of magnetic instruments, such as lensatic and M2 compasses. Experience is the best way to learn and wed highly recommend booking a navigation course to really hone your skills. Sometimes limited visibility means terrain features may not be visible. Last update on 2023-03-04 / Affiliate links / Images from Amazon Product Advertising API. Half the activity of their sport is keeping their map oriented so they can navigate faster and with more accuracy.
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