1. My 159-page, fully illustrated book is yours for the asking. Where the line intersects with the highway is where you are on the map. Using your compass, take a heading to a visible landmark. Once you know that you're facing north, rotate the compass so that the luminous line is over the 170-degree mark. Get your own customized topographical maps, built according to your specifications. This is sometimes referred to as putting red in the shed. 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. Heres how it works. From point A to point B, thats your bearing. To do so accurately, however, we must first adjust our compass for magnetic declination so the reading taken from the compass arrow . The Lensatic compass also has a large number of drawbacks, including the use of a large case that can make this a cumbersome and heavy option. Please refresh the page and try again. 4. 1. This may arise when you don't know your current position but have taken a back bearing from a visible landmark (1) you can identify on the map. 3. Want to start taking action on the content you read on AoM? You want to line up your view so the direction of travel arrow is straight ahead. Most lensatic compasses are designed to withstand moisture to a certain extent, but nobody makes them perfect. This involves trying to orient a map using only topographical features and your own eyesight. Now its time to use the lens. Step 1: Find the North Star. Shows how to use the USGI issue lensatic compass to orient the map, plot a course based on two well-defined. 2. The compass baseplates edge is now pointed in the direction of the visible landmark you used to get your bearing. Before we do that, lets take a closer look at declination. Module 1 Lensatic Compass. First, use your compass to get a bearing on a peak of Saddle Mountain. Used the G-M angle formed by the . The back bearing is 50. In this video below,the user walks through the elements of a USGI lensatic compass, and how to properly use one. When you have a line location, you know youre on a maps recognizable line (trail, ridge line, etc. 1. 1. A compass is a device used for navigation and orientation. Come on in and save lots of money! ","acceptedAnswer":{"@type":"Answer","text":"A: In order to orient and read a map, you have to have spatial awareness. 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. Hold the compass at eye level and point it at the object. Reserve! 6. Tilt it forwards until you can see your sighting arrow. Take that bearing and plot it on the map using the technique explained above. There was a problem. Lensatic compasses are made up of three parts: cover, base, and reading lens. But its important to understand the different types of navigational toolsincluding a lensatic compass. 5. Regardless, let's break it down into several steps: Open the compass cover at a 90-degree angle and then set the lens bracket at a 30-degree angle. You have your point location when you know precisely where you are in reference to your map. Imagine that you want to hold it as if it were firmly mounted in that position. Place your compass base plate on your map so the edge of the compass is aligned with the north-south meridian lines. Use your thumb to pull the thumb ring back about halfway. Some of the components' terms are used in the explanations below. Youve got your trusty compass and a map of the area, but you dont know exactly where you are in relation to the map. He climbs when he should be writing, writes when he should be sleeping, has fun always. Looking at the photo below, let's say you're at the north end of Sheeler Lake, where the penciled X is. What if youre not on a route and just have a broad idea of where you are? When we dont know where our point is, we have to rely on less precise kinds of orientation based on line or area position: Position of the line. Assume youre in the Adirondack Mountains of New York. Lensatic compasses aremade upof three parts: cover, base, and reading lens. Spread out your map. EMERGENCY PREPAREDNESS & More: A Manual On Food Storage and Survival: 2nd Edition Revised and Updated. The U.S. military M-1950 lensatic compass shown in this video is still in use today. Look directly down on the top (smaller card) of compass to view general orientation cardinal points. You see that its 230 in relation to your location. Orienting your map means aligning it so that north on the map corresponds to north in the terrain and the maps topography correlates to the real-world topography in front of you. 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. Magnetic North is 15 East. You will not be using it for the center-hold technique. Whether or not you participate in orienteering, I'm confident you'll find that a properly oriented map is a huge help in finding your way. Spatial awareness refers to having knowledge about where everything in the environment is located relative as well as understanding how objects relate with each other spatially. Orienting the Map with aLensatic Compass. OEC G&V. Download. Title: USING THE MILITARY LENSATIC COMPASS 1 USING THE MILITARY LENSATIC COMPASS PART 2 Intermediate Land Navigation Module 14 Travel Distance Estimation 2 . At this point, your map is almost oriented. As a result, your real bearing is 166. A Beginners Guide. Wrap your middle, ring and pinky finger around your thumb for support. 2. Using the approach described above, plot that bearing on the map. Fortunately, orienting your map is simple. Keep in mind that maps are drawn with north at the top. Your email address will not be published. . Great article! Basically, the compass needle will point someplace east of true north in locations west of the agonic line, whereas it will point somewhere west of true north in areas east of the agonic line. You dont have your point position. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. The red end of the needle must be pointing to the top of the map. Make sure the direction of travel arrow is pointing to the spot that youre trying to get to. A: To rotate a map in Beat Saber, you can hit the trigger button on your controller. If everything is matching up, youre onto a winner. Well, that is, unless you're doing something silly like holding the compass backwards. Copyright 2013-2019 Collingwood Publications LLC, Some of the best land navigators around are orienteers--those who participate in the cross-country running/map reading sport of orienteering. We may then use our compass to begin going in the direction we need to go in order to reach our destination. Turn the compass dial so that the bearing intersects the index line (2). The obvious drawback here is that such an approach is impossible in poor visibility. NY 10036. You want to go cross country directly to Devil's Wash Basin, a deep and beautiful lake you've heard a lot about. How to use the Lunatic Compass Map Orientation by compass Magnetic Azimuth A magnetic azimuth of any object is the compass reading of a direct line across the center of the compass to the object. 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. Learn to navigate using a topographic map and a compass. Because this method of orienting your map requires having visuals on features or landmarks in the terrain, good visibility is a must. 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. The reason contours are king is that they are fixed, at least in the timescales were talking about here. Now that were putting compass to map, we need to adjust for it so that we can accurately orient and navigate. Hold the compass steady and level, and up to your face. 2. Ensure that the compass bezel is set to 0 degrees i.e. On the other hand, wrap the fingers around the three fingers below the compass. 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. Your map is now aligned to magnetic north. You get the picture. To make sure you receive a correct bearing, youll have to perform some arithmetic with all of your bearings. Photo: Wikipedia. How Should I Set My GPS and Compass? 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. You see that its 310 in relation to you. Enroll in my personalized step-by-step video-based online course. So your true bearing would be 166. USING A COMPASS Magnetic azimuths are determined with the use of magnetic instruments, such as lensatic and M2 compasses. Lets move to the opposite coast of the U.S. Lets say youre in the Adirondacks of New York. Compass (For Dummies) Beginner guide to map and compass - Survival Saturday Ep. It is the bread and butter of navigation and a good habit to get into every time you set off in any given direction. Hand placement: Insert your thumb through the thumb loop and the index finger along the compass. Welcome back to the Land Navigation Manual for the Art of Manliness. You can also plot a known compass bearing on the mapthe reverse process. You cant shoot a bearing on the end point in your terrain since you cant see it. Kierans bookClimbing the Wallsan exploration of the mental health benefits of climbing, mountaineering, and the great outdoorsis scheduled for release by Simon & Schuster in April 2021. Looking at the map is an easy way of finding which direction north or east are relative to your current position. Sight: Now peek through the rear sight slot, aligning the sighting wire or the front sight to the desired direction or object. Put your compass on your map. To orient the map, first: Line up the edge of the compass with the edge of the map, or. You should be able to turn the map so that if you were to imagine jumping into it, the features would lie in the same direction both on the map and in your surroundings. To do so accurately, however, we must first adjust our compass for magnetic declination so the reading taken from the compass arrow is pointing our map towardtruenorth as opposed tomagneticnorth. Thats right Contours are king. It would be 204 (24+180) in this situation. To prevent this issue, well tweak our compass to account for declination. 3. Remember how we spoke about declination in Part 1? Sound complicated? durability, and its hyper-accuracy in land. Experience is the best way to learn and wed highly recommend booking a navigation course to really hone your skills. Its a bit tricky, but once you get the hang of it, youre solid. 3. Not a problem. What happens if you dont compensate for declination with your compass? To obtain a heading from our map, we may use our compass as a protractor. Well use the rear bearing of it to draw a line on the map from Saddle Mountain to our approximate direction. You want to know how to use a lensatic compass? This is because it is prepped to point instead to magnetic north once it's lined up with your compass needle. Open the cover completely and pull back the rear sight. ), Podcast #858: The Affectionate, Ambiguous, and Surprisingly Ambivalent Relationship Between Siblings, How to Fight Entitlement and Develop Gratitude in Your Kids, How and Why to Hold a Weekly Marriage Meeting, You Dont Have to Be Your Dad: How to Become Your Familys Transitional Character, Podcast #810: How to Turn a Boy Into a Man, Sunday Firesides: Climb the Ladder of Love, Podcast #865: How to Win Friends and Influence People in the 21st Century, Podcast #863: Key Insights From the Longest Study on Happiness, Podcast #875: Authority Is More Important Than Social Skills, Podcast #874: Throw a 2-Hour Cocktail Party That Can Change Your Life, 9 Mental Distortions That Are Sabotaging Your Social Life, How to Make the Perfect Snowball: An Illustrated Guide, Podcast #869: The Survival Myths That Can Get You Killed, Skill of the Week: Survive Falling Through Ice, Podcast #848: The 5 Priorities of Short-Term Survival, we covered how to properly use a compass, how to shootyour bearings, and the best map for navigating: the topo map, Land Navigation Manual: How to Use the Military Grid Reference System, Land Navigation Manual: Finding Your Bearings & Topo Maps, More Than Just Finding North: Understanding the Compass, Podcast #534: How Navigation Makes Us Human. Dont worry that your red orientating arrow doesnt point exactly map north. Pros . Shoot a bearing with your compass at the peak of Saddle Mountain. A compass needle aligns with the magnetic fields in the Earth, which is what it uses to help you find true north. slide 1 to 3 of 3. With our compass adjusted for local declination, were now ready to start orienting ourselves. Module 11 Plotting Position Coordinates exact positioning, used to communicate to others with a Orienting, or aligning, the map is really easy with just 3 steps: Lay your map out on a relatively flat, smooth surface. Lets say youre planning a short hike from one point to another. navigation and combat. Flip up the small magnifying glass. So, how are you going to acquire your point position? 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. Once you master using a lensatic compass, it becomes the only way youll ever navigate around the wilderness moving forward. Take your compass and line up the edges with the north-south gridlines on your map. . The method is to align the edge of the compass along the Magnetic North (MN) line, and then move the map and compass together until the compass needle points north. Check back next month for our final briefingon how tonavigate using MGRS coordinates, just like they do in the military. Step 1 Determine the direction of the map of the declination and its value from the declination on the map. The two basic techniques for using the lensatic compass . Orient the map to the terrain. Hed just line his map up with the features of the lake we were currently on to find our portage to the next lake. Note that we will be moving and adjusting the compass on the map. He has climbed a handful of 6000ers in the Himalayas, 4000ers in the Alps, 14ers in the US, and loves nothing more than a good long-distance wander in the wilderness. 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 . The lensatic compass is used by the U.S. Military. 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. Take your compass and turn the compass housing (bezel) until the red orientating arrow is in line with the direction of travel arrow. Were going to use the back bearing of that to plot a line from Saddle Mountain towards our general direction on the map. that it is pointing towards the top of the map. Corrected the orientations of the map when the G-M angle exceeded 3 degrees (50 mils) using one of the following: a. Whether or not you participate in orienteering, I'm confident you'll find that a properly oriented map is a huge help in finding your way. Identify where you are on the map and place the compass edge over this location. Method #1. We know were somewhere along HW 115 and south of Saddle Mountain. To avoid that problem, lets adjust our compass to take declination into account. Were headed to the Wichita Mountains Wildlife Refuge in Oklahoma for this example. From the compass, to GPS, to now even your mobile devicetheres no shortage of navigational tools. Keep it in a case, or wrapped up in a thick cloth to prevent those damages. 3.30 MB. Shoot the reverse bearing you got with your compass from the top of Saddle Mountain on your map. Or maybe using the sun to help put your map somewhat the right way around. Next, without changing the orientation of you map, move your compass so that the point you are plotting to/from is under the sighting wire, and the compass dial reading matches your bearing. Now, rotate the map and compass baseplatetogetheruntil the compass needle is boxed in the red orienting arrow (or direction-of-travel lines) on the compass. Take a bearing to a visible landmark using your compass. Check the declination of your local location on your map or on a website. Picture 1: Map Declination. 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. This is because technology is fallible, batteries run out, cold kills gadgets and theres always the possibility of dropping a device down a steep slope or into a rushing river. 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). Find two or three easily identifiable features or landmarks on your map and then try to identify them in the terrain, or vice-versa. Its not an issue. 1 color. 5. No declination exists and you dont have to adjust your compass. There is no declination, and you do not need to adjust your compass. 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. ? Simply look for distinguishable landmarks that are marked on the map, and turn so that both you and the map are facing this object. Place your compass on your map with the edge of the baseplate parallel to the north-south meridians on the map. This is also known as triangulation. The variation between magnetic north and true north is currently so minor that this can generally be ignored. Well, we can use our compass as a protractor to take a bearing from our map. Choosing a selection results in a full page refresh. Want a free ebook on Land Navigation? My magnetic declination is 4E, so Ill be moving the black arrow outline towards the red hash marks that are going towards E DECL.. You should then be able to roughly work out which way is north, east south or west using your maps gridlines. How can you get your point position then? 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. But heres the catch: depending on where you are on the planet, the angle of declination varies. 1. Steady the compass by allowing the hand holding the compass to rest in the cupped palm of your other hand. 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. You can, however, see the two points on your map. Turn the map and compass together until the azimuth sighted lies under the Index Line. Place the three remaining fingers below as if you are holding a gun. They could be your saving grace during a SHTF situation. Lay the compass on the map, using the straight edge to create a line from your starting point to your destination. The orient a map to the ground by map-terrain association is one of the most basic skills that you will need in order to survive. Save my name, email, and website in this browser for the next time I comment. Holding any compass in a slack and half-a**ed (that's an old military term. You can see that the mountain is 24 degrees away from you. Line up your map with what you see around you. Its 310 degrees in reference to you, as you can see. 1. Turn your entire body as a unit until 066 (062 + 004) degrees falls under your compass's fixed black index line. Determine your position on the map and set the compass edge over it. Rotate the compass dial until north on the compass ring lines up with north on the map. A lightweight, well-engineered orienteering compass from the Finnish company that helped set the gold standard in navigation. When you purchase through links on our site, we may earn an affiliate commission. Step 3 Use one of two techniques to orientate the map. The My Open Country name is registered with the U.S. Patent and Trademark Office. When moisture seeps into the lens case of your lensatic compass, it causes major problems. Youre on that line, so you know where youre standing. This was developed. To orientate the map, rotate both the map and compass together until the red compass needle and the red orientating arrow match up. There are step-by-step to use a compass. . To figure out precisely where you are on the map, you simply need one more piece of information. Map Reading and Land Navigation: FM 3-25.26. For bearings of one to 179 degrees, rotate the bezel counter-clockwise. Well adjust it to account for the declination of our compass. Spatial awareness refers to having knowledge about where everything in the environment is located relative as well as understanding how objects relate with each other spatially. No worries. Declination is the angle formed by true north and magnetic north. Pencarian Terakhir Elcenter Course Zindagi Ban Gy Ho Tum The lensatic compass is comprised of different parts compared to a baseplate compass. Magnetic north lines up exactly when youre on this line and facing true north. You learn that it has a 176 bearing. The easiest way to orientate a map is to relate the features in front of you to the features on the map. If the local declination is positive, subtract the declination amount from the bearing you just derived. To find directions from your map, you're going to need a protractor, a special instrument used for measuring angles. My 159-page, fully illustrated book is yours for the asking. 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.