how to orient a map using a lensatic compass

Hold compass up to eye level and view larger side card for "direction-of-travel" compass. If your local declination is east of the agonic line, youll need to add the declination to your compass bearing; if its west of the agonic line, youll need to remove the declination from your compass bearing. how to orient a map using a lensatic compass; how to orient a map in military; orient a map using a lensatic compass powerpoint The angle between true north and magnetic north is declination. Make sure the degrees of the dial are readable. Thank you for signing up to Advnture. Fill & Sign Online, Print, Email, Fax, or Download The instances navigation needs to be most spot-on are when visibility is compromised. 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. Hey, it happens! What if you dont have access to a compass that can compensate for declination? Program, Strengthen Your Tribe: A Report on the Atomic Athlete Vanguard, The Best Riddles for Kids (With Answers! 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. You should then be able to roughly work out which way is north, east south or west using your maps gridlines. The reason contours are king is that they are fixed, at least in the timescales were talking about here. 4. To find the tower's bearing with your lensatic compass: 1. Taking each features relative shape, height and distance away into consideration, you should be able to start to match them to the contour features on the map. Turn your map so that north on the map corresponds to the needles orientation. 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. If everything is matching up, youre onto a winner. Choosing a selection results in a full page refresh. 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. 3. Then, you place your protractor on the map with its center point at your current position, making sure the north-south lines on the protractor line up with the north-south lines on the map. (Be sure you understand magnetic declination. My 159-page, fully illustrated book is yours for the asking. Line your orienteering compass's base plate up with the map's north-south lines. When you have a line position, you know that youre on some identifiable line on the map (trail, ridge line, etc. An "azimuth" is pretty much the same as a "bearing." Note: This procedure places the fixed black index line of the compass parallel to north-south grid lines of the map. This was developed. You have your point location when you know precisely where you are in reference to your map. Declination was taken into account while adjusting the compass. Once you reach your landmark, align yourself again to make sure youre on the right path. Remember, human features are the last port of call and, whats king again? is also used to follow a course over the ground, orient or set a map, and determine position of objects in. 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! Your lens piece will appear just above your thumb loop. 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). Take a bearing to a visible landmark using your compass. When you do know exactly where you are in relation to your map, you have your point position.. Identify your approximate location on your map. Orienting, or aligning, the map is really easy with just 3 steps: Lay your map out on a relatively flat, smooth surface. If you want to navigate and explore like a Navy SEAL, its high time you learn how to use one of these stellar compasses. 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. Sounds like a lot more than a regular compass, doesnt it? Youre on that line, so you know where youre standing. Standard compasses use floating dials, but lensatic compasses use a damping mechanism powered by electromagnetic induction. On your map, shoot the back bearing that you just took with your compass from the top of Saddle Mountain. ? As previously stated, orientating your map using visual features is only as good as the visibility on any given day. Contours are king. Were not using it at all during this entire process.). You look out into the distance and you see another mountain peak, but you dont know the name of it. Draw a line on the map at 130 degrees from Saddle Mountain. A lensatic compass is just one of the many navigational tools we have built. Execute your docs in minutes using our simple step-by-step instructions: Get the How To Use A Lensatic Compass you need. This makes it easier to relate what you see on the map with what you see on the ground. Turn the compass and the map as a unit until you box the needlei.e., Put Red Fred in the shed. Sound complicated? 1. 3. PARTS OF THE LENSATIC COMPASS Compass, Lensatic, US Army, closeup: 2 (From another source) 1. Just follow these lensatic compass instructions: Open the compass: Let the cover and the base form a 90-degree angle. Hold the compass at eye level and point it at the object. Preferred by military for its precision and. It would be 204 (24+180) in this situation. You can see that the mountain is 24 degrees away from you. A lensatic compass is often referred to as a military compass, and is typically used by the U.S. Military. These other objects can interfere with compasses, and no matter how miniscule the differences may seem, it can leave an impact. The red end of the needle must be pointing to the top of the map. Learn to navigate using a topographic map and a compass. On the other hand, wrap the fingers around the three fingers below the compass. At the summit of Saddle Mountain, take a bearing using your compass. That has the potential to make a significant impact! Turn your declination-adjusted compass dial so due North is at the index pointer. 2. Keep in mind that maps are drawn with north at the top. To figure out precisely where you are on the map, you simply need one more piece of information. You now have your target's bearing. Because most of the components are housed in a casing, moisture can wreak havoc once its in there. You can also plot a known compass bearing on the mapthe reverse process. Used the G-M angle formed by the . Alex is a qualified Mountain Leader, adventure writer and content creator with an insatiable passion for the mountains. Turn the bezel on your compass so that north on the compass points to north on the map. Put the compass anywhere on top of the map. Turn your entire body as a unit until your predetermined azimuth falls under the fixed black index line. Easy-to-Read Thermometer - Cushion-mounted thermometer provides an "at-a-glance . Use your index finger to steady the front of the compass. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); What is a Lensatic Compass and How to Use Them? True north is at the very top of the earth, while magnetic north is currently off the coast of Greenland. 1. For sighting purposes, we recommend using the compass-to-cheek method for better accuracy. Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map. Look at the red needle to see which direction it is pointing. However, imagine youre in Muir Woods in San Francisco, facing true north. This was developed for the Center for Initial Military Training, FT Eustis, Va. On your map, though, you can see the two spots. 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. If your compass doesnt have a declination adjustment key, simply make the adjustment on the spot. The first step of orienting with our map and compass is to make sure north on the map lines up with north in our terrain. It typically consists of a magnetized needle that is mounted on a pivot and placed inside a circular housing. FM 3-25.26: Map Reading and Land Navigation. Position in the area. If you are interested in trying your hand at navigation with a lensatic compass, check out our Brunton 9077 Compass, and follow along with this video: If you are interested in trying your hand at navigation with a lensatic compass, check out our. Kieran James Cunningham is a climber, mountaineer, and author who divides his time between the Italian Alps, the US, and his native Scotland. The mils are in black, and are the outer measurements on the ring. Make a mark with your pencil at the notch on the end furthest from the sighting wire. While this doesnt technically register as an electronic, were going to treat it like one. Thats your bearing from point A to point B. My magnetic declination is 4E, so Ill be moving the black arrow outline towards the red hash marks that are going towards E DECL.. Save my name, email, and website in this browser for the next time I comment. Spread out your map. If the magnetic declinationin your area were zero, you'd proceed in the direction of 062 degrees. It. navigation and combat. Lay the map out flat in front of you. A compass needle aligns with the magnetic fields in the Earth, which is what it uses to help you find true north. Orient the map to the terrain. You can also use this website to get up to date declinations. You don't want to hold it crooked, cockeyed, or off level. My 159-page, fully illustrated book is yours for the asking. Enroll in my personalized step-by-step video-based online course. 3. In your case, however, your declination is 004 degrees West, meaning you'll have to add 004 degrees before you set your compass. You can, however, see the two points on your map. Its not as easy to get lost on land without a map and compass. The lanyard hole that can be used by the orienteering compass user can limit access to the compass if not enough space is available to move the compass across your map. From point A to point B, thats your bearing. Lay the compass on the map, using the straight edge to create a line from your starting point to your destination. With your bezel ring set, stand at your starting point and . relation to a map. Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map. Its 310 degrees in reference to you, as you can see. 6. Use the lens to look through the sighting line to find another landmark, and repeat until you reach your destination. It will be clearer why we need to compensate for declination in the first place. You dont have your point position. This latter option is a cheat since grid lines have their own declination value. The housing lines should be parallel with the maps vertical grid lines. 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. Go to your map. Doing that with a lensatic compass is much like doing that with any other compass. Plus, as a web site visitor, you get a 50% discount off the regular price, meaning you get the whole course for $10. Lay the compass down on your map. Flip your compass upside down. Check the declination of your local location on your map or on a website. A good temperature of 65F to 78 should keep the humidity down and help preserve the structural integrity of the compass. Photo: Wikipedia. pointsnorth, east, south, and westbut some are marked additionally with the. EMERGENCY PREPAREDNESS & More: A Manual On Food Storage and Survival: 2nd Edition Revised and Updated. A: In order to orient and read a map, you have to have spatial awareness. Open the cover completely and pull back the rear sight. For this, they use a lensatic compass, among other navigation equipment and techniques. Thats right Contours are king. Leave your orientating arrow in line with the index line and the direction of travel arrow, as it will already be primed to point magnetic north. The variation between magnetic north and true north is currently so minor that this can generally be ignored. (Note: The magnetic compass needle should be ignored.) Once you are physically at your starting location, its time to put your compass to good use. Learn Land Navigation Now. (1) Compass-to-cheek method (figure C-21). To avoid that problem, lets adjust our compass to take declination into account. 3. The base is the compass dial, bezel, and the thumb loopthe thumb loop is used for stability to garner a more accurate reading. Want a free ebook on Land Navigation? Look at your map, or use a website to see your local areas declination. 3. Map Reading and Land Navigation: FM 3-25.26. The back bearing is 50. But it isnt just magnets there are other culprits at play, here. They could be your saving grace during a SHTF situation. Brett May 23, 2016 Last updated: June 2, 2021. Module 1 Lensatic Compass. True north and magnetic north are not the same, as stated in Part I. You see that its 310 in relation to you. In such orientation we use a lensatic scale. Future US, Inc. Full 7th Floor, 130 West 42nd Street, Some of the best land navigators around are orienteers--those who participate in the cross-country running/map reading sport of orienteering. 4. You see that its 230 in relation to your location. Once you master using a lensatic compass, it becomes the only way youll ever navigate around the wilderness moving forward. Open the compass all the way so that the cover locks into position against the base, forming a straightedge along the left side. 1. Lay your map out in front of you on a relatively flat and smooth (and dry!) Turn the map and compass until the needle on the compass aligns with the north-south grid lines on the map. Position of the point. Look at the index line and read the number. It is the bread and butter of navigation and a good habit to get into every time you set off in any given direction. 3.30 MB. Lets say youre planning a short hike from one point to another. ), 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. Youll want to turn it until that black arrow outline is lined up with the 4E hash mark. Here at Brunton, we manufacture a variety of different compasses for varying needs in the field. Map and compass skills are essential when navigating the great outdoors, Abrupt topography, like mountain peaks, should be easy to identify thanks to their contours on the map, Magnetic declination guidance on a standard topographical map, Having adjusted the compass housing to correspond with magnetic north, line your compass up with the map's gridlines, Red is in the shed: the compass needle is lined up with the orientating arrow, Ski towns are full: why we cant all just move to the mountains, Berghaus MTN Guide MW Hoody review: a performance mid-layer for the mountains, Rangers warn National Park graffiti could throw hikers off the trail. This way you can see the object and the bezel at the same time. This webpage may also be used to get current declinations. Lensatic compasses are made up of three parts: cover, base, and reading lens. orient a map to the ground by map-terrain association, Sunday Firesides: Become an Evangelist . Step 1 Determine the direction of the map of the declination and its value from the declination on the map. When moisture seeps into the lens case of your lensatic compass, it causes major problems. Holding the compass up to your face, angle the rear sight so that you can read the compass dial clearly through the lens while peering through the sighting slot and lining your distant target (the water tower, in this case) up with the sighting wire. As a result, your real bearing is 166. On the map, you are where the line connects with the highway. Close is good enough in horsehoes, but I'm hoping exact is the standard for artillery fire. Get my Land Navigation coursehere. You get the picture. Find out more atwww.alexfoxfield.com (opens in new tab). Open the compass: Let the cover and the base form a 90-degree angle. Want to start taking action on the content you read on AoM? NY 10036. Were going to move that to take into account declination on our compass. 5. 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. When you face true north, magnetic north is roughly 14 degrees to the left, or west, of you. Improve your reading skills with the KWL Method Compass 101 - How to Use a Baseplate Compass Buying a Compass for Land Naviga-tion Basic Navigation with a Compass and a Map How to orient a map and take a . 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. 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.

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