At the summit of Saddle Mountain, take a bearing using your compass. Pull your elbows firmly into your sides; this will place the compass between your chin and your belt. 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. Orient a Map Using a Lensatic Compass 071-329-1011 Conditions: Standards: Orient the map to the ground using a compass. A lensatic compass features a small pop-out area for your thumb, and a lid on top of the main compass body. Adjustable Declination Compasses. He is currently working towards qualifying as a Mountaineering and Climbing Instructor and International Mountain Leader. Youve got your dependable compass and a map of the region, but youre not sure where you are in respect to the map. 3 Navigation: Compass Basics Read, Understand, and Remember! Remember, human features are the last port of call and, whats king again? Because this method of orienting your map requires having visuals on features or landmarks in the terrain, good visibility is a must. Well, that is, unless you're doing something silly like holding the compass backwards. Hey, it happens! We may use the map to identify any landmark we observe in our landscape once we know our point location. A visualization depicting the Soldiers Manual of Common Tasks (STP 21-1-SMCT) task Orient a Map Using a Lensatic Compass (071-COM-1011). a. 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. 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. When we dont have our point position, we have to use less exact forms of orientation based on line or area position to find it: Line Position. The housing lines should be parallel with the maps vertical grid lines. 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. Its 230 degrees in reference to your position, as you can see. The rear bearing is at a 50-degree angle. Want a free ebook on Land Navigation? Now hold your compass horizontally and point the 'direction-of-travel-arrow' towards the landmark. The big idea normally is to have your map more or less line up with the terrain so you can make sense of where things are around you. 3. This is why you should never take a bearing off a sheep. You then see where the line you drew intersects with the protractor's numbers, in this case 062 degrees. The housing is marked with cardinal points, typically north, south, east, and west, which . Lay the map out flat in front of you. Look directly down on the top (smaller card) of compass to view general orientation cardinal points. On the map, you are where the line connects with the highway. Heres how it works. Basically, in areas west of the agonic line, the compass needle will point somewhere to the east of true north; in areas east of the agonic line, the compass needle will point somewhere west of true north. Knowing how to orientate a map is just one facet of the wider skill of knowing how to read a map. Uses a retractable lens to read the bearing while. So, if you know where you are on the map, look ahead and see what features you can see. Preferred by military for its precision and. Turn your entire body as a unit until 066 (062 + 004) degrees falls under your compass's fixed black index line. Method #2. As previously stated, orientating your map using visual features is only as good as the visibility on any given day. 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. 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. Use the illustration above to familiarize yourself with the components of a lensatic compass. You can use this feature to set your compass in the dark. Don't worry that your red orientating arrow doesn't point exactly map north. It typically consists of a magnetized needle that is mounted on a pivot and placed inside a circular housing. Title: USING THE MILITARY LENSATIC COMPASS 1 USING THE MILITARY LENSATIC COMPASS PART 2 Intermediate Land Navigation Module 14 Travel Distance Estimation 2 . Advnture is part of Future US Inc, an international media group and leading digital publisher. Whenever the luminous magnetic arrow lines up with the luminous short line, you're following your intended azimuth. Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map."}}]}. My 159-page, fully illustrated book is yours for the asking. Magnetic North is 15 East. Remember declination from Part I? The compass baseplates edge is now pointed in the direction of the visible landmark you used to get your bearing. Travel to that landmark. Place your compass on your map with the edge of the baseplate parallel to the north-south meridians on the map. Using your protractor or other straight edge, you draw a line from your current position in the direction of where you want to go. Spread out your map. Assume youve climbed to the top of Camels Hump in Vermont. 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 . Next month, well wrap off our series with a final briefing on how to navigate using MGRS coordinates, exactly like the military. 4. 2. How Should I Set My GPS and Compass? Fill & Sign Online, Print, Email, Fax, or Download A: In order to orient and read a map, you have to have spatial awareness. EMERGENCY PREPAREDNESS & More: A Manual On Food Storage and Survival: 2nd Edition Revised and Updated. In my online video land-navigation course, I explain in lecture 20, how to orient a map. 4. Sight an azimuth to any visible terrain feature that appears on the map. Place the compass flat on the map with the travel arrow pointed in the general direction of north and one of the base plate's long edges linking your location and your destination; you may need a straight-edge to make the connection, depending on the map's scale and the distance to be covered. Flip up the lid to a 90-degree angle. With your bezel ring set, stand at your starting point and . 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. These other objects can interfere with compasses, and no matter how miniscule the differences may seem, it can leave an impact. All you have to do now is take a bearing towards the unnamed mountain. Half the activity of their sport is keeping their map oriented so they can navigate faster and with more accuracy. One advantage is it's probably more accurate when it comes to "shooting azimuths," meaning the act of determining the specific compass direction to a spot on the earth. Check the index line to find out the bearing you just have taken. 1. Get your own customized topographical maps, built according to your specifications. This is because it is prepped to point instead to magnetic north once its lined up with your compass needle. 2. This is sometimes referred to as putting red in the shed. The U.S. military M-1950 lensatic compass shown in this video is still in use today. Now it's time to take out the map. (Note: if you have a compass with an adjustable declination the adjustment needs to be set to zero). Start spinning the bezel slowly until the 'magnetized needle' is aligned with the 'orienting arrow.'. What wildlife can you see at Yellowstone National Park? Brett May 23, 2016 Last updated: June 2, 2021. 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. 5. You can use this feature to set your compass in the dark. Make an "L" shape with the index finger and thumb of your other hand. 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). Youve orientated the map. 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. 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. Most compasses are marked with the four cardinal. Turn the compass and the map as a unit until you box the needlei.e., Put Red Fred in the shed. PART 1 Basic Land Navigation USING THE MILITARY LENSATIC COMPASS Module 6 Map Information. Close is good enough in horsehoes, but I'm hoping exact is the standard for artillery fire. Turn the little screw using a small screwdriver or the little metal piece that comes with your compass lanyard. Its not as easy to get lost on land without a map and compass. A lensatic compass is just one of the many navigational tools we have built. Get my Land Navigation coursehere. 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. Place the compass on your map with the edge along a north-south grid line. 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. When moisture seeps into the lens case of your lensatic compass, it causes major problems. Assume youre going on a short trek from one location to another. Your map is now aligned to magnetic north. Look at which way the red needle is pointing. So its declination would be 14W. and compass together is to orient the map towards north simply align the map merid, figure 10b while keeping compass edge on landmark pivot compass until magnetized needle is centered within orienting arrow plot bearing on map by drawing line from landmark using the edge of the compass figure 10c 1 how a compass works your compass is a . If you want to learn Land Navigation in detail, either buy a book; or get someone, who has the knowledge and skills, to teach you in person. If not, recalibrate before continuing. Find two or three easily identifiable features or landmarks on your map and then try to identify them in the terrain, or vice-versa. True north is represented by a star. The two basic techniques for using the lensatic compass . 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. 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. The cover is used to protect the compass and alsoincorporates thesighting wirewhich helps you determine direction. Well, we can use our compass as a protractor to take a bearing from our map. Click heretolearn about the three different types of compasses. Some of the best land navigators around are orienteers--those who participate in the cross-country running/map reading sport of orienteering. On your map, though, you can see the two spots. As long as you can hold the compass level and steady, the exact grip doesn't matter. The lensatic compass is used by the U.S. Military. Make sure the degrees of the dial are readable. 2. for Faith in Humanity, how to orient a map using a lensatic compass, orient a map using a lensatic compass powerpoint. Reserve! At night, however, or in other periods of limited visibility (fog, blizzard, etc) keeping these two luminous bits lined up will be your only remedy. This involves trying to orient a map using only topographical features and your own eyesight. 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. Read your compass (Figures 5-25 and 5-26). Lets return to Muir Woods as an example. You don't want to hold it crooked, cockeyed, or off level. Line your orienteering compass's base plate up with the map's north-south lines. First, open the compass to its fullest so that the cover forms a straightedge with the base. 1. In the daytime, you'll normally find something in the distance on your azimuth and walk to it, so you don't have to keep staring at the compass. 1. Hold your compass in the two-hand hold, steady and level in front of you. Check the declination of your local location on your map or on a website. Use your index finger to steady the front of the compass. Of course, ignore all of this if youre hiking through the Netherlands or Florida, where hills and, by extension, contour lines are somewhat rare. Hey, it happens! Once you are physically at your starting location, it's time to put your compass to good use. Assume youre in the Adirondack Mountains of New York. Lets move to the opposite coast of the U.S. Lets say youre in the Adirondacks of New York. Use your thumb to pull the thumb ring back about halfway. Using the rotating bezel, turn it until the direction of travel arrow lines up with the north arrow. New York, 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. PART 1 Basic Land Navigation. 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. Place the compass on the map with one long edge of the baseplate running between the two points of interest. 2. This makes it easier to relate what you see on the map with what you see on the ground. "}},{"@type":"Question","name":"How do you orient a map to ground? Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map. See that little black outline of an arrow? 5. Adjust for magnetic declination. Keep it in a case, or wrapped up in a thick cloth to prevent those damages. A lensatic compass is often referred to as a military compass, and is typically used by the U.S. Military. Line up your map with what you see around you. 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. ), Set Your Compass for Your Intended Azimuth. 2. Lets say youre out hiking. Ensure that the compass bezel is set to 0 degrees i.e. This is because it is prepped to point instead to magnetic north once it's lined up with your compass needle. Note: This procedure places the fixed black index line of the compass parallel to north-south grid lines of the map. Thank you for signing up to Advnture. There are step-by-step to use a compass. It has its advantages and disadvantages over the orienteering compass. For sighting purposes, we recommend using the compass-to-cheek method for better accuracy. Looking at the photo below, let's say you're at the north end of Sheeler Lake, where the penciled X is. 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. Oriented the map. As you can see, the declination of the location Im in is 4E. Determining a Bearing, or "Shooting an Azimuth", Using Your Compass Sights to "Shoot an Azimuth". relation to a map. In this case, it 15 degrees positive (east). You can also plot a known compass bearing on the mapthe reverse process. USING A COMPASS Magnetic azimuths are determined with the use of magnetic instruments, such as lensatic and M2 compasses. Great article! Dont worry that your red orientating arrow doesnt point exactly map north. Orient your map so that its lined up with magnetic north (see above). 1. orient a map to the ground by map-terrain association, Sunday Firesides: Become an Evangelist . So in this episode, well go through the abilities youll need. Huzzah! Assume youre southeast of Saddle Mountain and northeast of a few of lesser peaks. Looking at the map is an easy way of finding which direction north or east are relative to your current position. At least, I never saw him with one. Place your map on a horizontal surface and then place the compass on the map so that the orienting arrow points to true north on the map. FM 3-25.26: Map Reading and Land Navigation. Turn your compass on its side. (1) Compass-to-cheek method (figure C-21). To use the terrain to orient a map, you must be familiar with symbols used on the map. Once you master using a lensatic compass, it becomes the only way youll ever navigate around the wilderness moving forward. What if you dont have a compass that allows you to adjust for declination? But heres the catch: depending on where you are on the planet, the angle of declination varies. Ethan Allan, the peak you observed, is cut through by the plotted line. Contours are king. Were headed to the Wichita Mountains Wildlife Refuge in Oklahoma for this example. Method #1. 3. 5. This can be done either by (1) rotating the map the requisite number of degrees east or west or (2) holding the baseplate firmly, rotate the compass housing to the correct number of degrees west or east to account for the declination. Sight: Now peek through the rear sight slot, aligning the sighting wire or the front sight to the desired direction or object. You see that the mountain is 24 in relation to you. What happens if you dont adjust your compass for declination? 3. Welcome back to the Land Navigation Manual for the Art of Manliness. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. A map and compass are useless unless you know how to use them properly. The cover is used to protect the compass and also incorporates the sighting wirewhich helps you determine direction. Before we do that, lets dig a bit deeper into declination. That can make a huge difference! A power point class to Orient a Map Using a Lensatic Compass or $0.99 - Purchase Checkout Added to cart or $4.99 - Monthly Subscription Checkout Added to cart Billed once per month until cancelled or $14.99 - Annual Subscription Checkout Added to cart Billed once per year until cancelled or $9.99 - Protected: VIP Subscription Checkout Added to cart Billed once per year until cancelled . A map so lined up is easier to interpret and follow than a map spread out haphazardly. All you have to do is shoot a bearing towards the unidentified peak. (Note: The magnetic compass needle should be ignored.) Influences can be the factors of how the people life runs. 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. Its not unheard of for hikers to accidentally read their map upside down and end up facing south, rather than north. Holding any compass in a slack and half-a**ed (that's an old military term) manner can cause you to go off in the wrong direction. The angle between true north and magnetic north is declination. Open the cover completely and pull back the rear sight. 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. My magnetic declination is 4E, so Ill be moving the black arrow outline towards the red hash marks that are going towards E DECL.. What are 2 ways to orient a map? Get your own customized topographical maps, built according to your specifications. When you do know exactly where you are in relation to your map, you have your point position.. To orientate the map, rotate both the map and compass together until the red compass needle and the red orientating arrow match up. 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. This is also known as triangulation. Were going to use the back bearing of that to plot a line from Saddle Mountain towards our general direction on the map. Place the three remaining fingers below as if you are holding a gun. Now were going to find out where exactly we are on that line. ","acceptedAnswer":{"@type":"Answer","text":"A: To rotate a map in Beat Saber, you can hit the trigger button on your controller. If you point your compass towards true north, your compass needle is going to point a little to the east. Huzzah! We can find out easily enough, though. Well, youre going to have to do some math with all your bearings to make sure you get a true bearing. Adjust the compass bezel so that north on the compass corresponds to north on the map. As long as youre lined up with your direction of travel arrow (keeping that north arrow visible for reference), you need to look through the sighting line and pick a landmark ahead of you. Navigation has taken on many forms over the years. From the compass, to GPS, to now even your mobile devicetheres no shortage of navigational tools. But not to you, I trust. In your case, however, your declination is 004 degrees West, meaning you'll have to add 004 degrees before you set your compass. As we can see, the area Im in has a declination of 4E. Articles - Email - Linkedin - Facebook - Instagram. 4. Well say the declination value is 10 degrees. Look through the lens and sighting line. Now repeat step 3 above and youre good to go. 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. Before we do that, lets take a closer look at declination. There are two ways of doing this. Customize the template with smart fillable areas. So, don't sweat too much the minute details of getting your map finely oriented to the last degree with your compass. 8; Page 11 G. LOCATING POSITION USING INTERSECTION 1. UK readers, youre in luck. Come to think of it, I dont even know if he had a compass. Best Camping Knife for Outdoor Adventures, Best 4-Person Tent For Camping [2023 Update], How to Use a Fire Starter: A Simple, Step-by-Step Guide, How to Dispose of Butane Cans (and Other Solvents), Best Hikes in Colorado: 17 Incredible Trails, Types of Backpacks: The Ultimate List of 23 Pack Styles, Learning one of land navigations primary skills, Turn your map using your map and compass together, How to check your map is oriented correctly. Step 2. Orient the map to the terrain. Shoot the reverse bearing you got with your compass from the top of Saddle Mountain on your map. 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. 2. Looking at the map is an easy way of finding which direction north or east are relative to your current position. Flip up the small magnifying glass. Put your compass on your 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. Stand so that you can see where the north arrow is pointing, and where your direction of travel arrow is pointing. ), you just dont know exactly where. There's another way to orientate a map using a compass that starts slightly differently to what was explained above. Turn your entire body as a unit until your predetermined azimuth falls under the fixed black index line. that it is pointing towards the top of the map. As magnetic north changes depending on where you are in the world, you have to ensure you adjust your compass accordingly. B. 1. Thats 130 degrees. Used the G-M angle formed by the . How to Determine the Bearingof a Distant Object. Let's say you see a water tower off in the distance. Note that we will be moving and adjusting the compass on the map. A compass is a device used for navigation and orientation. Then turn the map until the position of the landmarks on the map corresponds to the real-world features in the terrain, then cross-check your position with additional features to ensure you have oriented correctly. Hand placement: Insert your thumb through the thumb loop and the index finger along the compass. 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. Easy-to-Read Thermometer - Cushion-mounted thermometer provides an "at-a-glance . We just dont know where exactly. Turn your declination-adjusted compass dial so due North is at the index pointer. You can always orient your map with a working compass. Large Ball Compass - Easy to read ball compass shows two readings. What's that? As mentioned in Part I, true north and magnetic north arent the same. Learn to navigate using a topographic map and a compass. Hold it square and straight in front of you like you mean business. The mils are in black, and are the outer measurements on the ring. Open the cover completely and pull back the rear sight. Youre on that line, so you know where youre standing. The base is the compass dial, bezel, and the thumb loopthe thumb loop is used for stability to garner a more accurate reading. 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. For instance, line up roads, mountains, water towersany terrain features that stand out enough to make orienting the map possible. Whenever the luminous magnetic arrow lines up with the luminous short line, you're following your intended azimuth. To obtain a heading from our map, we may use our compass as a protractor. We guide you on how to orientate a map with or without your compass so that you can navigate your way through the backcountry. 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. When you face true north, magnetic north is roughly 14 degrees to the left, or west, of you. 3. Copyright 2013-2019 Collingwood Publications LLC, It's important to hold your compass stable, squarely in front of you, and level. On the other hand, wrap the fingers around the three fingers below the compass. We'll start from the beginning, and go through everything you need to know to find your way over the terrain. Line it up with that. 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. A lightweight, well-engineered orienteering compass from the Finnish company that helped set the gold standard in navigation.
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