Orient a map using a lensatic compass by Aaron Laforteza - Prezi 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. The skill allows users to find north with ease, which is crucial for navigation. Make sure the travel direction arrow is pointed in the direction you want to go. Casio's latest G-Shock watch could be a serious Garmin rival. To do so accurately, however, we must first adjust our compass for magnetic declination so the reading taken from the compass arrow . pointsnorth, east, south, and westbut some are marked additionally with the. The lensatic compass must always be held level and firm when sighting on an object and reading an azimuth. Huzzah! Lay the compass on the map, using the straight edge to create a line from your starting point to your destination. 2. 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. Map & Compass: Adjust for declination & orient the map - Andrew Skurka We guide you on how to orientate a map with or without your compass so that you can navigate your way through the backcountry. So, if youre at Muir Woods and your compass reads 180 degrees, subtract 14 degrees. Let's have a look at the sources that constantly give favorable points. 1. If we didnt adjust for declination and were getting bearings for our destination from our map, well find ourselves off by 14 or more when we start walking. Bear in mind that an east declination value will be a positive number, and a west declination value will be a negative number. SEE IT. 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. A lensatic compass is just one of the many navigational tools we have built. I guess the military needs the extra accuracy now and then say, for example, to precisely place artillery fire. First, use your compass to get a bearing on a peak of Saddle Mountain. Look at the index line and read the number. SMCT: Orient a Map Using a Lensatic Compass - YouTube Take your compass and line up the edges with the north-south gridlines on your map. Its declination would be written as 14E. Orient the map to the terrain. Learn to navigate using a topographic map and a compass. 2. Thats your bearing from point A to point B. Note: This procedure places the fixed black index line of the compass parallel to north-south grid lines of the map. 5. 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. Determine a Magnetic Azimuth Using a Lensatic Compass With the map level, place the compass . 4. Draw a line towards the roadway youre on using the side of your compass. Identify your approximate location on your map. First things first. Once you've got the bearing you can transfer it to the map. You can use this feature to set your compass in the dark. Adjust for magnetic declination. Welcome back to the Art of ManlinessLand Navigation Manual. Magnetic north is now off the coast of Greenland, but true north is at the very top of the world. It will make it easier to understand why we adjust for declination in the first place. 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. Orienteering vs. Lensatic Compass: How do they compare? He climbs when he should be writing, writes when he should be sleeping, has fun always. You have your point location when you know precisely where you are in reference to your map. Lets break down the individual parts of a lensatic compass so you can understand every element behind how it works. Fortunately, orienting your map is simple. 3 . Sight an azimuth to any visible terrain feature that appears on the map. Youll want to stick to areas that are cool and dry, and dont offer any immediate threats to technological devices. Your article very useful for me and it helps me understand more about compass. You don't want to hold it crooked, cockeyed, or off level. Your map is now aligned to magnetic north. (1) Compass-to-cheek method (figure C-21). To begin, use your compass to locate a peak on Saddle Mountain. Assume youre going on a short trek from one location to another. Looking at the map is an easy way of finding which direction north or east are relative to your current position. Were going to figure out where we are on that line now. The big bang. 2. Determine your position on the map and set the compass edge over it. Get my Land Navigation coursehere. Read the azimuth: Lastly, ensuring the dial is floating, look down on it and read the azimuth. west is 270). To figure out precisely where you are on the map, you simply need one more piece of information. How To Get Your Map and Compass To Face the Same Direction. How to Use a Compass: The Ultimate Guide to Navigation You should notice that the direction of travel arrow should be pointing at the top of the map, and the black orienteering lines should also be parallel to the north-south gridlines on the map. How to Use a Compass - The Beginner's Guide | thecampingman.com 3. Heres our step-by-step guide to the most straightforward. Check the declination of your local location on your map or on a website. 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. 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. 1. When you purchase through links on our site, we may earn an affiliate commission. PDF Lensatic Compass or Military Compass Basic Use. - Survival Primer Thankfully, its notwhether orienting your map with a compass or without, this is a skill that can be learned in minutes and which can be done in a matter of seconds out in the field. (2) Keep the compass aligned as directed above while . Come on in and save lots of money! A compass needle aligns with the magnetic fields in the Earth, which is what it uses to help you find true north. Find two or three easily identifiable features or landmarks on your map and then try to identify them in the terrain, or vice-versa. Choosing a selection results in a full page refresh. Move the lens holder: Slightly push forward the lens holder. Shows how to use the USGI issue lensatic compass to orient the map, plot a course based on two well-defined. ? USING A COMPASS Magnetic azimuths are determined with the use of magnetic instruments, such as lensatic and M2 compasses. 3. What if you dont have a compass that allows you to adjust for declination? 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. The U.S. military M-1950 lensatic compass shown in this video is still in use today. Orient you compass with the bearing, and draw the bearing line. Check the index line to find out the bearing you just have taken. 2. True north is represented by a star. When it comes to how to orientate a map, there are two main ways to do it. We'll start from the beginning, and go through everything you need to know to find your way over the terrain. Your compass is now set. 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. Program, Strengthen Your Tribe: A Report on the Atomic Athlete Vanguard, The Best Riddles for Kids (With Answers! 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. Place your compass on your map with the edge of the baseplate parallel to the north-south meridians on the map. Its a bit tricky, but once you get the hang of it, youre solid. Want a free ebook on Land Navigation? How to Use a Lensatic Compass - Brunton Advnture is part of Future US Inc, an international media group and leading digital publisher. Before we can start actually navigating, which well get to in Part IIIof this series, we still need to learnwhere we are in relation to our maphow to orient ourselves. . 1. Most lensatic compasses are designed to withstand moisture to a certain extent, but nobody makes them perfect. Now that were putting compass to map, we need to adjust for it so that we can accurately orient and navigate. Check back next month for our final briefingon how tonavigate using MGRS coordinates, just like they do in the military. When you face true north, magnetic north is going to be left, or west, of you by about 14. Above: For this example in the Grand Canyon, grid north ("GN") differs from true . Hold compass up to eye level and view larger side card for "direction-of-travel" compass. 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. If you don't, visit the page just hyperlinked. Want to start taking action on the content you read on AoM? The courses of streams change, field boundaries move, new hedgerows are built, walls are plundered for buildings, glaciers melt, roads and bridges are washed away by floods, houses are knocked down and rebuilt somewhere else. ), but youre not sure where. Step One: Take a Compass Bearing on the Ground. With your bezel ring set, stand at your starting point and . 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. Take a compass bearing on the peak to your southwest. Large Ball Compass - Easy to read ball compass shows two readings. The number one destroyer of compasses and any enclosed items like these is moisture. A map so lined up is easier to interpret and follow than a map spread out haphazardly. The techniques employed when using the lensatic compass are as follows: a. When you return from using your lensatic compass, take it apart as much as possible to detect any moisture. Were not using it at all during this entire process.). number of degrees in a circle (360: north is 0 or 360, east is 90, south is 180, and. Magnetic North is 15 East. . The compass baseplates edge is now pointed in the direction of the visible landmark you used to get your bearing. But its important to understand the different types of navigational toolsincluding a lensatic compass. First, open the compass to its fullest so that the cover forms a straightedge with the base. Finding Your Way With Map and Compass | U.S. Geological Survey Remember, maps are drafted with north at the top. Assume youre southeast of Saddle Mountain and northeast of a few of lesser peaks. Youve got your trusty compass and a map of the area, but you dont know exactly where you are in relation to the map. The red end of the needle must be pointing to the top of the map. 4. 2. Magnetic north would be around 14 degrees to your right, or east. Have you noticed the agonic line? Welcome back to the Land Navigation Manual for the Art of Manliness. If we dont account for declination and use our map to acquire directions to our destination, well be wrong by 14 or more when we start walking. 4. Lets say youre planning a short hike from one point to another. Thanks so much for sharing! You can see that the mountain is 24 degrees away from you. All Rights Reserved. You dont have your point position. c. There are two methods of holding the lensatic compass and sighting. You want to go cross country directly to Devil's Wash Basin, a deep and beautiful lake you've heard a lot about. Survival Compass, Military Compass Hiking, Orienteering Lensatic Compass, Waterproof Navigation Compasses, Survival Emergency Luminous Sighting Compass. Look at the red needle to see which direction it is pointing. If the magnetic declinationin your area were zero, you'd proceed in the direction of 062 degrees. Now its time to use the lens. Lets return to Muir Woods as an example. Flip up the small magnifying glass. What is the preferred method of using a lensatic compass when reading magnetic azimuths. [10] 4. Rotate the compass until the north on the bezel points to the top of the map and the compass housing orienting lines are parallel to the maps vertical grid lines, using your position as a pivot. Step 2. Look through the sighting slot and find some target (a tree, boulder, whatever) that lines up with your sighting wire. Orienting, or aligning, the map is really easy with just 3 steps: Lay your map out on a relatively flat, smooth surface. Keep it in a case, or wrapped up in a thick cloth to prevent those damages. This webpage may also be used to get current declinations. Lay your map out in front of you on a relatively flat and smooth (and dry!) Lets move to the opposite coast of the U.S. Lets say youre in the Adirondacks of New York. 3. Mt. Assume youre in the Adirondack Mountains of New York. Find out more atwww.alexfoxfield.com (opens in new tab). Line your lensatic compasss base plate up with the maps north-south lines. He is currently working towards qualifying as a Mountaineering and Climbing Instructor and International Mountain Leader. Use the lens to look through the sighting line to find another landmark, and repeat until you reach your destination. How to use a lensatic compass - SlideShare Open the compass: Let the cover and the base form a 90-degree angle. Use your index finger to steady the front of the compass. Oriented the map. Turn the little screw using a small screwdriver or the little metal piece that comes with your compass lanyard. In this video below,the user walks through the elements of a USGI lensatic compass, and how to properly use one. When map reading, there are two ways to orient a mapby eye and with a compass. Get your own customized topographical maps, built according to your specifications. 3. SPC Presentation - ORIENTING A MAP USING A LENSATIC COMPASS 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. Travel to that landmark. durability, and its hyper-accuracy in land. When youre on this line and are facing true north, magnetic north lines up perfectly, too. Flip up the lid to a 90-degree angle. Now, read the degree marking under the fixed black index line. Center the compass on the map, with one of the baseplates long edges running between the two places of interest. A lensatic compass is often referred to as a military compass, and is typically used by the U.S. Military. This step comes after aligning our map and compass needle to magnetic north if using a compass that doesnt have a declination adjustment key. Turn the compass cover more or less perpendicular to the base. Turn your entire body as a unit until 066 (062 + 004) degrees falls under your compass's fixed black index line. The My Open Country name is registered with the U.S. Patent and Trademark Office. Area Position. US $10.58 orient yourself to a map and follow a course over land The lensatic compass is used to set course bearings Instructions for Lensatic compass Open the lensatic compass so that the cover is at a 90 degree angle and the lens bracket is at a 30 degree angle to the case Lensatic Compass. Well, that is, unless you're doing something silly like holding the compass backwards. While this doesnt technically register as an electronic, were going to treat it like one. So, how are you going to acquire your point position? (Note: if you have a compass with an adjustable declination the adjustment needs to be set to zero). Compass: Definitions and Examples - Club Z! Tutoring How can you get your point position then? Place the three remaining fingers below as if you are holding a gun. USING THE MILITARY LENSATIC COMPASS - PowerShow 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. How To Use a Compass with a USGS Topographic Map How to use an Orienteering Compass - Survival Gear Book The lensatic compass is comprised of different parts compared to a baseplate compass. Use a Compass to Plot Bearings on a Map. Orienting the Map with aLensatic Compass. This makes it easier to relate what you see on the map with what you see on the ground. To find the tower's bearing with your lensatic compass: 1. You can figure this out with a little compass work. When the actual lens gets damaged, it unnecessarily impairs simple operation. Hey, it happens! Steady the compass by allowing the hand holding the compass to rest in the cupped palm of your other hand. Ensure that the compass bezel is set to 0 degrees i.e. 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. 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. Positioned the cover of the compass toward the top of the map. Land Nav Task 10 - Orient a Map Using a Lensatic Compass Remember, human features are the last port of call and, whats king again? 3. At this point, your map is almost oriented. Come to think of it, I dont even know if he had a compass. is also used to follow a course over the ground, orient or set a map, and determine position of objects in. There's another way to orientate a map using a compass that starts slightly differently to what was explained above. He did this for ten days, taking us across numerous waterways and lakes. Say your azimuth was 170 degrees. Open the cover completely and pull back the rear sight. Boom. 8; Page 11 G. LOCATING POSITION USING INTERSECTION 1. You notice another mountain peak out in the distance, but you dont know what its called. Most people have never heard of them, but soon enough, youre going to be a master at using them. The mils are in black, and are the outer measurements on the ring. Home / Educational Resources / Math Resources / Compass: Definitions and Examples. How you can Read an Engineer Compass - Physics | ScienceBriefss.com Magnetic north lines up exactly when youre on this line and facing true north. {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"How do you orient and read a map? Turn your entire body as a unit until your predetermined azimuth falls under the fixed black index line. This way you can see the object and the bezel at the same time. A Cumbrian born and bred, his native English Lake District has a special place in his heart, though he is at least equally happy in North Wales, the Scottish Highlands or the European Alps. However, we should be able to figure it out rather quickly. 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. If the contour interval is 10 meters, then what is the change in elevation of each intermediate contour . Well, that is, unless you're doing something silly like holding the compass backwards. Brunton TruArc 8010 Classic Map Luminous Compass Brunton TruArc 8010 Classic Map Luminous Compass Item # WX2- 715075 / Mfg. Once you are physically at your starting location, it's time to put your compass to good use. ","acceptedAnswer":{"@type":"Answer","text":"A: To rotate a map in Beat Saber, you can hit the trigger button on your controller. With our compass adjusted for local declination, were now ready to start orienting ourselves. Its 310 degrees in reference to you, as you can see. Turn your declination-adjusted compass dial so due North is at the index pointer. brunton classic compass Land Navigation 101: Pinpoint Your Location, Orient the Map Orient a map using a lensatic compass by Jessica Lanier It. Aligned the side of the compass with one of the north-south grid lines. ENROLL NOW. (Note: The magnetic compass needle should be ignored.) There is some technical difference between the two, but for all practical civilian purposes, the words are interchangeable. So its declination would be 14W. Theyre not traditionally used for camping trips or simple navigation, but if youre serious about prepping, this is a must-have in your EDC bag and bug out bag. 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. Turn the compass dial so that the bearing intersects the index line (2). Because this method of orienting your map requires having visuals on features or landmarks in the terrain, good visibility is a must. The angle between true north and magnetic north is declination. This video shows how to orient a map with a compass and briefly discusses magnetic declination. Nothing is permanent and contours are more permanent than pretty much everything else on a map. The bezel clicks as it moves--three degrees for every click. navigation and combat. Now draw the bearing line using the edge of the compass, and extending it in the desired direction. Place compass on top of map. Next month, well wrap off our series with a final briefing on how to navigate using MGRS coordinates, exactly like the military. We know were someplace south of Saddle Mountain on HW 115. How to Orient Your Map Quickly With a Compass - PopUpBackpacker Influences can be the factors of how the people life runs. 2. Its a subtle difference, but its a roundabout way of saying lensatic compasses are less prone to interference than others. There are step-by-step to use a compass. Well say the declination value is 10 degrees. Land Navigation Flashcards | Quizlet Please refresh the page and try again. The legend. Note that we will be moving and adjusting the compass on the map. Turn the bezel on your compass so that north on the compass points to north on the map. Lets say youve hiked the peak of Camels Hump in Vermont. Sight: Now peek through the rear sight slot, aligning the sighting wire or the front sight to the desired direction or object. It is easy to learn and it can be done with just a map and compass. 2. Identify where you are on the map and place the compass edge over this location. $8.77. A: To rotate a map in Beat Saber, you can hit the trigger button on your controller. 2. Triangulate your position. This involves trying to orient a map using only topographical features and your own eyesight. Place the compass on your map with the edge along a north-south grid line. As mentioned in Part I, true north and magnetic north arent the same. But heres where things get tricky: the angle of declination changes depending where you are on the earth. 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. Future US, Inc. Full 7th Floor, 130 West 42nd Street, Use your thumb to pull the thumb ring back about halfway. 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. On the other hand, wrap the fingers around the three fingers below the compass. Fill & Sign Online, Print, Email, Fax, or Download The obvious drawback here is that such an approach is impossible in poor visibility. Knowing how to orientate a map is just one facet of the wider skill of knowing how to read a map. Take a bearing on the mountain thats southwest from you. If youre in the Adirondacks, youll want to add 14 so your true bearing would be 194. When you have a line position, you know that youre on some identifiable line on the map (trail, ridge line, etc. . Hold the compass steady and level, and up to your face. One disadvantage is, unlike the orienteering compass, it's not easy to make it double as a protractor, meaning you'll have to carry a protractor with you.
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