Well adjust it to account for the declination of our compass. Flip up the small magnifying glass. Take a compass bearing on the peak to your southwest. 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. 3. Lets go to the other side of the country. 3. If you dont start out using your lensatic compass with a map, then its just a regular compass. What's that? 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. They both use magnetization to help you find where you are and where youre going, but theres a catch. c. There are two methods of holding the lensatic compass and sighting. Check back next month for our final briefingon how tonavigate using MGRS coordinates, just like they do in the military. 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. Read the azimuth: Lastly, ensuring the dial is floating, look down on it and read the azimuth. 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. 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. There you go. 3 . But heres the catch: depending on where you are on the planet, the angle of declination varies. You look out into the distance and you see another mountain peak, but you dont know the name of it. Youll want to rotate it till the black arrow outline matches the 4E hash mark. You are missing your point location. Use your index finger to steady the front of the compass. 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. How to Use a Compass - The Beginner's Guide | thecampingman.com Articles - Email - Linkedin - Facebook - Instagram. 1. You get the picture. Doing that with a lensatic compass is much like doing that with any other compass. So, if youre in Muir Woods and your compass has a bearing of 180, youll want to subtract 14. With your bezel ring set, stand at your starting point and . Assume youve climbed to the top of Camels Hump in Vermont. Use your thumb to pull the thumb ring back about halfway. To avoid that problem, lets adjust our compass to take declination into account. If youre in the Adirondacks, add 14 degrees to get a correct bearing of 194 degrees. How to Use a Compass to Get Your Bearings. 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. When you point your compass towards true north, the needle will point a bit to the west. Magnetic North is 15 East. Standard compasses use floating dials, but lensatic compasses use a damping mechanism powered by electromagnetic induction. OEC G&V. Download. The instructions on this page might make orienting a map seem a highly technical thing. Map-and-Compass Skills: How-To - TREAD Magazine The angle between true north and magnetic north is declination. Step 1 Orient the map. You have your point location when you know precisely where you are in reference to your map. To find the tower's bearing with your lensatic compass: 1. Huzzah! 1. You cant shoot a bearing on the end point in your terrain since you cant see it. Pull your elbows firmly into your sides; this will place the compass between your chin and your belt. Manual Cammenga Lensatic Compass (page 1 of 16) (English) - Libble.eu Sight an azimuth to any visible terrain feature that appears on the map. ), but youre not sure where. Battle tested - shock, water, sand proof, and. Designate your starting and ending points on the map. So your true bearing would be 166. how to orient a map using a lensatic compass - caketasviri.com 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. Position in the area. Orient you compass with the bearing, and draw the bearing line. Turn the compass dial so that the bearing intersects the index line (2). Draw a line towards the roadway youre on using the side of your compass. ? He climbs when he should be writing, writes when he should be sleeping, has fun always. Another trick for declination when your compass cant adjust for it is to create your own declination arrow out of masking tape and tape it beneath your compass under the correct declination degree hash (This will only work if your compass has a clear base). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); MyOpenCountry is a participant in the Amazon Services LLC Associates Program. 9-4. Lensatic compasses aremade upof three parts: cover, base, and reading lens. No worries. 2. A good temperature of 65F to 78 should keep the humidity down and help preserve the structural integrity of the compass. You can see that the mountain is 24 degrees away from you. Module 11 Plotting Position Coordinates exact positioning, used to communicate to others with a Your action from here depends on the value and direction of your declinationeast or west. This was developed for the Center for Initial Military Training, FT Eustis, Va. 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. Fill in the empty areas; concerned parties names, places of residence and phone numbers etc. Youre somewhere on that line, so you know have a line position. Large Ball Compass - Easy to read ball compass shows two readings. Thats 130 degrees. The red end of the needle must be pointing to the top of the map. Knowing how to orientate a map is just one facet of the wider skill of knowing how to read a map. NB. Declination is the angle formed by true north and magnetic north. Here's an example from an older map of the Grand Canyon. Remember, maps are drafted with north at the top. You should then be able to roughly work out which way is north, east south or west using your maps gridlines. This makes it easier to relate what you see on the map with what you see on the ground. Were ready to start orienting ourselves now that our compass has been corrected for local declination. Keep doing this until you get to where you want to go. 1. 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. 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. There is some technical difference between the two, but for all practical civilian purposes, the words are interchangeable. Double-check by making sure the map title or legend text is the correct way up, or find the maps north arrow. Well, that is, unless you're doing something silly like holding the compass backwards. slide 1 to 3 of 3. "}},{"@type":"Question","name":"How do you do map orientation? Step 2. These other objects can interfere with compasses, and no matter how miniscule the differences may seem, it can leave an impact. To use this method (a) Open the cover to a 90-degree angle to the base. Lets move to the opposite coast of the U.S. Lets say youre in the Adirondacks of New York. Now repeat step 3 above and youre good to go. PDF Landmark Compass Manual There is no declination, and you do not need to adjust your compass. A lensatic compass features a small pop-out area for your thumb, and a lid on top of the main compass body. 4. Turn the compass and the map as a unit until you box the needlei.e., Put Red Fred in the shed. 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. Align the map so that the top of the map is parallel with the direction north based on the compass. 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. For bearings of one to 179 degrees, rotate the bezel counter-clockwise. Well use the rear bearing of it to draw a line on the map from Saddle Mountain to our approximate direction. 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. {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"How do you orient and read a map? Take your compass and turn the compass housing (bezel) until the red orientating arrow is in line with the direction of travel arrow. It would be 204 (24+180) in this situation. Draw a line on the map at 130 degrees from Saddle Mountain. 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. Navigation has taken on many forms over the years. 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. The mils are in black, and are the outer measurements on the ring. The map is now oriented to the terrain. PDF 071-329-1011 Conditions: Standards - PBworks Move the lens holder: Slightly push forward the lens holder. Now hold your compass horizontally and point the 'direction-of-travel-arrow' towards the landmark. Assume youre in the Adirondack Mountains of New York. When you have a line location, you know youre on a maps recognizable line (trail, ridge line, etc. If the local declination is negative, add the declination amount . 3. Orient a map using a lensatic compass by Aaron Laforteza - Prezi The bezel clicks as it moves--three degrees for every click. The big bang. Orient the map to the terrain. When youre on this line and are facing true north, magnetic north lines up perfectly, too. No declination exists and you dont have to adjust your 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. Assume youre going on a short trek from one location to another. The fundamentals of using a map and compass to find your way around. Get your own customized topographical maps, built according to your specifications. (Note: Ignore the magnetic compass needle. 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). Aligned the side of the compass with one of the north-south grid lines. ","acceptedAnswer":{"@type":"Answer","text":"A: In order to orient and read a map, you have to have spatial awareness. The housing is marked with cardinal points, typically north, south, east, and west, which . Some of the best land navigators around are orienteers--those who participate in the cross-country running/map reading sport of orienteering. Keep in mind that maps are drawn with north at the top. True north is at the very top of the earth, while magnetic north is currently off the coast of Greenland. 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. Note that we will be moving and adjusting the compass on the map. What if youre not on a route and just have a broad idea of where you are? Easy-to-Read Thermometer - Cushion-mounted thermometer provides an "at-a-glance . Set Up Your Compass Faster & More Accurately With A Map Protractor What happens if you dont adjust your compass for declination? FM 3-25.26: Map Reading and Land Navigation. Well, we can use our compass as a protractor to take a bearing from our map. Were headed to the Wichita Mountains Wildlife Refuge in Oklahoma for this example. 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. On your map, place your compass. Welcome back to the Land Navigation Manual for the Art of Manliness. Step 1 Determine the direction of the map of the declination and its value from the declination on the map. Plot a line on the map using the back bearing from that mountain. Through his hiking, mountaineering, climbing and trail running adventures, Alex aims to inspire others to get outdoors. Not a problem. Using the approach described above, plot that bearing on the map. 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. How to Use a Compass: The Ultimate Guide to Navigation 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. If you want to navigate and explore like a Navy SEAL, its high time you learn how to use one of these stellar compasses. Adjustable Declination Compasses. Turn your entire body as a unit until your predetermined azimuth falls under the fixed black index line. 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. We know were somewhere along HW 115 and south of Saddle Mountain. Influences can be the factors of how the people life runs. Want a free ebook on Land Navigation? 1. Get Free Compass Reading Study Guide - opus.soton.ac.uk 4. How To Get Your Map and Compass To Face the Same Direction. However, imagine youre in Muir Woods in San Francisco, facing true north. Read Online Compass Reading Study Guide - ftp.avenza.com Execute your docs in minutes using our simple step-by-step instructions: Get the How To Use A Lensatic Compass you need. Land Navigation Flashcards | Quizlet 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. 3. If you don't, visit the page just hyperlinked. Corrected the orientations of the map when the G-M angle exceeded 3 degrees (50 mils) using one of the following: a. A compass needle aligns with the magnetic fields in the Earth, which is what it uses to help you find true north. SPC Presentation - ORIENTING A MAP USING A LENSATIC COMPASS Lets pretend youre on a hike. Turn the map and compass together until the red needle is pointing north. Looking at the map is an easy way of finding which direction north or east are relative to your current position. Orient a Map Using a Lensatic Compass 071-329-1011 Conditions: Standards: Orient the map to the ground using a compass. 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. Youre in the right place! Move the lens holder: Slightly push forward the lens holder. USING THE MILITARY LENSATIC COMPASS - PowerShow Plotting a bearing on a map using a round lensatic compass - MapTools 1 color. Before we do that, lets dig a bit deeper into declination. Have you noticed the agonic line? How to Orient a Map - land navigation Title: USING THE MILITARY LENSATIC COMPASS 1 USING THE MILITARY LENSATIC COMPASS PART 2 Intermediate Land Navigation Module 14 Travel Distance Estimation 2 . You see that its 310 in relation to you. brunton classic compass But not to you, I trust. To orient the map, first: Line up the edge of the compass with the edge of the map, or. Its one of the most versatile navigation tools we have available today. To do so accurately, however, we must first adjust our compass for magnetic declination so the reading taken from the compass arrow .