4. Map Reading and Land Navigation: FM 3-25.26. The bezel clicks as it moves--three degrees for every click. Or maybe using the sun to help put your map somewhat the right way around. Ethan Allan, the peak you observed, is cut through by the plotted line. If your destination is further than what the side edging allows for, you can use an actual ruler to align with the side of your compass edge to help you get to your destination. You discover that it has a bearing of 176. You cant see the end point in your terrain, so you cant shoot a bearing on it. Performance Steps 1. 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. Assume youre going on a short trek from one location to another. Now, read the degree marking under the fixed black index line. Declination was taken into account while adjusting the compass. Lensatic Compass Military Camping Hiking Army Style Survival Marching NEW You can look through a small window of the top (thats the lens), and navigate smoothly from there. Positioned the cover of the compass toward the top of the map. Position in the area. However, imagine youre in Muir Woods in San Francisco, facing true north. Place the three remaining fingers below as if you are holding a gun. 2. Alex is a qualified Mountain Leader, adventure writer and content creator with an insatiable passion for the mountains. 2. Learn to navigate using a topographic map and a compass. Plot a line on the map using the mountains rear bearing. The red end of the needle must be pointing to the top of the map. Place your compass on your map with the edge of the baseplate parallel to the north-south meridians on the map. Though GPS and smartphonesare reliable, its still vital to carry a compass, and know how to use it, as a backup or lifesaving form of navigation. Hey, it happens! With the map level, place the compass . ), Set Your Compass for Your Intended Azimuth. If your compass doesnt have a declination adjustment key, simply make the adjustment on the spot. Hiking Compas - walmart.com To use the terrain to orient a map, you must be familiar with symbols used on the map. Make sure the travel direction arrow is pointed in the direction you want to go. Flip up the small magnifying glass. This involves trying to orient a map using only topographical features and your own eyesight. If you take just one thing from this guide, let it be the appreciation that contours are the most important navigational feature on the map, especially where hills and mountains are concerned. No declination exists and you dont have to adjust your compass. Once you master using a lensatic compass, it becomes the only way youll ever navigate around the wilderness moving forward. But heres where things get tricky: the angle of declination changes depending where you are on the earth. orient a map to the ground by map-terrain association, Sunday Firesides: Become an Evangelist . As long as you can hold the compass level and steady, the exact grip doesn't matter. Also known as setting the map, orientating helps to relate your position and the landscape around you to the map, therefore making onward navigation more straightforward. Here's an example from an older map of the Grand Canyon. 2. Land Navigation: How to Orient With a Map & Compass We need to compensate for the compass now that weve placed it on the map so that we can appropriately orient and travel. In Part I, we covered how to properly use a compass, how to shootyour bearings, and the best map for navigating: the topo map. Its a subtle difference, but its a roundabout way of saying lensatic compasses are less prone to interference than others. But not to you, I trust. When you face true north, magnetic north is roughly 14 degrees to the left, or west, of you. 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. Lets say youve hiked the peak of Camels Hump in Vermont. First, use your compass to get a bearing on a peak of Saddle Mountain. Use a Compass to Plot Bearings on a Map. Program, Strengthen Your Tribe: A Report on the Atomic Athlete Vanguard, The Best Riddles for Kids (With Answers! Line it up with that. Lay your map out in front of you on a relatively flat and smooth (and dry!) You notice another mountain peak out in the distance, but you dont know what its called. When youre on this line and are facing true north, magnetic north lines up perfectly, too. As we can see, the area Im in has a declination of 4E. 3. The rear bearing is at a 50-degree angle. 3.Rotate the map and compass until the directions of the declination diagram formed by the black index line and the compass needle match the direction shown in the . Hold the compass at eye level and point it at the object. How to Use a Compass: The Ultimate Guide to Navigation Mt. Hed just line his map up with the features of the lake we were currently on to find our portage to the next lake. For sighting purposes, we recommend using the compass-to-cheek method for better accuracy. 2. Finally, read the number on the rim of the compass. 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. What's that? For instance, line up roads, mountains, water towersany terrain features that stand out enough to make orienting the map possible. When you have a line location, you know youre on a maps recognizable line (trail, ridge line, etc. relation to a map. In this case, it would be 204 (24+180). 4. Start with contour features, such as what the ground is doing in front of you and around you, what happens to the terrain in the middle distance and then whats going on in terms of distant mountain peaks, ridges, hills and escarpments. EMERGENCY PREPAREDNESS & More: A Manual On Food Storage and Survival: 2nd Edition Revised and Updated. Hold the compass steady and level, and up to your face. With our compass adjusted for local declination, were now ready to start orienting ourselves. The housing lines should be parallel with the maps vertical grid lines. You can always orient your map with a working compass. 3. A compass needle aligns with the magnetic fields in the Earth, which is what it uses to help you find true north. Open the cover completely and pull back the rear sight. Turn the compass and the map as a unit until you box the needlei.e., Put Red Fred in the shed. So in this episode, well go through the abilities youll need. OEC G&V. Download. First things first. Go to your map. Orienting, or aligning, the map is really easy with just 3 steps: Lay your map out on a relatively flat, smooth surface. Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map."}}]}. Well use the rear bearing of it to draw a line on the map from Saddle Mountain to our approximate direction. Well, youre going to have to do some math with all your bearings to make sure you get a true bearing. Procedures. The My Open Country name is registered with the U.S. Patent and Trademark Office. This step comes after aligning our map and compass needle to magnetic north if using a compass that doesnt have a declination adjustment key. 3.30 MB. Plotting a bearing on a map using a straight edged lensatic compass At this point, your map is almost oriented. What if youre not on a route and just have a broad idea of where you are? Take a bearing on the mountain thats southwest from you. There are two ways of doing this. Instead of using your compasss arrow, youll align your needle with the tape arrow. Were going to use the back bearing of that to plot a line from Saddle Mountain towards our general direction on the map. Suunto M-3 Compass. Weve compiled a detailed guide on how to adjust for magnetic declination, but at its most basic level it goes like this: Your map should state what the magnetic declination is in degrees for the region you are in. Finally, before setting off, be sure to do a quick check by looking around you to see that all features represented on your map are where they should be in the terrain. north. Sometimes we may use GPS technology or navigational apps to find our way, but we will always have the option of a map and compass stashed safely in our hiking backpack. 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. He is currently the President of the London Mountaineering Club, training to become a Winter Mountain Leader, looking to finally finish bagging all the Wainwright fells of the Lake District and hoping to scale more Alpine 4000ers when circumstances allow. Remember, maps are drafted with north at the top. Its not as easy to get lost on land without a map and compass. Using your location as a pivot, rotate the compass until north on the bezel is pointing to the top of the map and the compass housing orienting lines are parallel with the maps vertical grid lines. Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map. If you dont start out using your lensatic compass with a map, then its just a regular compass. Step 1 Orient the map. 8; Page 11 G. LOCATING POSITION USING INTERSECTION 1. The lensatic compass is comprised of different parts compared to a baseplate compass. 2. Center the compass on the map, with one of the baseplates long edges running between the two places of interest. A: To rotate a map in Beat Saber, you can hit the trigger button on your controller. 2. The legend. Oriented the map. Let's have a look at the sources that constantly give favorable points. Find the magnetic declination on your map. 2. It's important to hold your compass stable, squarely in front of you, and level. Experience is the best way to learn and wed highly recommend booking a navigation course to really hone your skills. We may use the map to identify any landmark we observe in our landscape once we know our point location. Lets move to the opposite coast of the U.S. Lets say youre in the Adirondacks of New York. Now its time to store your compass. The term lensatic comes from the fact that there is a lens on the rear side of the compass that aids in the orienteering process. But its important to understand the different types of navigational toolsincluding a lensatic compass. 3. Open the cover completely and pull back the rear sight. Step 1. The two basic techniques for using the lensatic compass . 4. To make sure you receive a correct bearing, youll have to perform some arithmetic with all of your bearings. (Note: if you have a compass with an adjustable declination the adjustment needs to be set to zero). Its declination is recorded as 14E. They both use magnetization to help you find where you are and where youre going, but theres a catch. As previously stated, orientating your map using visual features is only as good as the visibility on any given day. 1. Open the cover completely and pull back the rear sight. North is always at the topof any map. Your map is now aligned to magnetic north. 3. To prevent this issue, well tweak our compass to account for declination. Using your location as a pivot, rotate the compass until north on the bezel is pointing to the top of the map and the compass housing orienting lines are parallel with the map's vertical grid lines. But it isnt just magnets there are other culprits at play, here. Step 1: Find the North Star. Timetoprepare.net. Enroll in my personalized step-by-step video-based online course. For this, they use a lensatic compass, among other navigation equipment and techniques. It typically consists of a magnetized needle that is mounted on a pivot and placed inside a circular housing. Get my Land Navigation coursehere. Kieran has taught mountaineering, ice climbing, and single-pitch and multi-pitch rock climbing in a variety of contexts over the years and has led trekking and mountaineering expeditions in the Alps, Rockies, and UK. Line up the meridian lines (the parallel lines inside the bezel) with a north/south grid line on the map. Dont worry that your red orientating arrow doesnt point exactly map north. Make an "L" shape with the index finger and thumb of your other hand. The back bearing is 50. Identify where you are on the map and place the compass edge over this location. Now it's time to take out the map. 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. With solid land-navigation skills, you'll be more confident and "at home" in the wilderness. This is commonly known as puttingthe red in the shed. Orient you compass with the bearing, and draw the bearing line. Say your azimuth was 170 degrees. Orienting the Map with anOrienteering Compass. You cant shoot a bearing on the end point in your terrain since you cant see it. When this happens, its time to orientate using a compass. Steady the compass by allowing the hand holding the compass to rest in the cupped palm of your other hand. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. Assume youve climbed to the top of Camels Hump in Vermont. NY 10036. Find out more atwww.alexfoxfield.com (opens in new tab). 1. The housing is marked with cardinal points, typically north, south, east, and west, which . 9-4. To avoid that problem, lets adjust our compass to take declination into account. In actual practice, orienting your map is something you'll often do "on the run" and can be as simple as glancing at your compass needle and turning the map more or less accordingly. While some elements of the navigation process are similar to using a baseplate compass, there are also slight differencesincluding how you hold a lensatic compass. This makes it easier to relate what you see on the map with what you see on the ground. Doing this quick visual sense check by examining the surrounding terrain is to triple-check that your readings arent out by 180 degrees and to make sure the map is always aligned with your compasss north-pointing (and usually red) magnetic arrow i.e. What happens if you dont adjust your compass for declination? Come to think of it, I dont even know if he had a compass. Look at which way the red needle is pointing. On your map, shoot the back bearing that you just took with your compass from the top of Saddle Mountain. How to Use a Compass to Get Your Bearings. 4. Map-and-Compass Skills: How-To - TREAD Magazine This video shows how to orient a map with a compass and briefly discusses magnetic declination. If the magnetic declinationin your area were zero, you'd proceed in the direction of 062 degrees. . From the compass, to GPS, to now even your mobile devicetheres no shortage of navigational tools. This way you can see the object and the bezel at the same time. What are 2 ways to orient a map? Well, that is, unless you're doing something silly like holding the compass backwards. Lay the compass on the map, using the straight edge to create a line from your starting point to your destination. 3. Navigate to your map. Corrected the orientations of the map when the G-M angle exceeded 3 degrees (50 mils) using one of the following: a. Position the eyepiece at a 45-degree angle to the . Were going to figure out where we are on that line now. Fog or dense forest may mean you cant see but a few feet around you in any direction. How can you get your point position then? Turn your declination-adjusted compass dial so due North is at the index pointer. In my online video land-navigation course, I explain in lecture 20, how to orient a map. 2. Line your orienteering compass's base plate up with the map's north-south lines. You want to go cross country directly to Devil's Wash Basin, a deep and beautiful lake you've heard a lot about. Now were going to find out where exactly we are on that line. In this situation, you can use your compass to work out which direction magnetic north is and orientate from there. We may then use our compass to begin going in the direction we need to go in order to reach our destination. Your article very useful for me and it helps me understand more about compass. FM 3-25.26: Map Reading and Land Navigation. Make sure your map is aligned with magnetic north (see above).
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how to orient a map using a lensatic compass