Adjust for magnetic declination. Standard compasses use floating dials, but lensatic compasses use a damping mechanism powered by electromagnetic induction. What happens if you dont adjust your compass for declination? That has the potential to make a significant impact! But its important to understand the different types of navigational toolsincluding a lensatic compass. We just dont know where exactly. Choosing a selection results in a full page refresh. (Be sure you understand magnetic declination. Copyright 2013-2019 Collingwood Publications LLC, It's important to hold your compass stable, squarely in front of you, and level. 3. Determine your position on the map and set the compass edge over it. But it isnt just magnets there are other culprits at play, here. 5. 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. Set your compass dial to 000 degrees. Its a subtle difference, but its a roundabout way of saying lensatic compasses are less prone to interference than others. number of degrees in a circle (360: north is 0 or 360, east is 90, south is 180, and. Positioned the cover of the compass toward the top of the map. SEE IT. The My Open Country name is registered with the U.S. Patent and Trademark Office. that it is pointing towards the top of the map. To orient a map means to line it up with the terrain, so that North on the map is pointing to North on the terrain. 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 . Turn your map so that north on the map corresponds to the needles orientation. 4. When this happens, its time to orientate using a compass. 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. As magnetic north changes depending on where you are in the world, you have to ensure you adjust your compass accordingly. My 159-page, fully illustrated book is yours for the asking. At the summit of Saddle Mountain, take a bearing using your compass. Knowing how to orientate a map is just one facet of the wider skill of knowing how to read a map. Execute your docs in minutes using our simple step-by-step instructions: Get the How To Use A Lensatic Compass you need. Nothing is permanent and contours are more permanent than pretty much everything else on a map. is also used to follow a course over the ground, orient or set a map, and determine position of objects in. 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). NB. Hold the compass at eye level and point it at the object. [10] 4. 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. Learn Land Navigation Now. Because most of the components are housed in a casing, moisture can wreak havoc once its in there. slide 1 to 3 of 3. Want a free ebook on Land Navigation? Thank you for signing up to Advnture. You see that its 310 in relation to you. $7.20. Mt. 3. To determine the direction, or bearing, from one point to another, you need a. compass as well as a map. 6. How to Use a Compass to Get Your Bearings. With solid land-navigation skills, you'll be more confident and "at home" in the wilderness. Place the compass on your map with the edge along a north-south grid line. Well say the declination value is 10 degrees. Timetoprepare.net is a participant in the Amazon Services LLC Associates Program and Other Programs, an affiliate advertising programs designed to provide a means for sites to earn advertising fees by advertising and linking to the Partners. The lensatic compass must always be held level and firm when sighting on an object and reading an azimuth. It typically consists of a magnetized needle that is mounted on a pivot and placed inside a circular housing. On your map, place your compass. Using your compass, take a heading to a visible landmark. 2. Make a mark with your pencil at the notch on the end furthest from the sighting wire. Lensatic compasses are used by the United States military for a reason. 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. Most compasses are marked with the four cardinal. FM 3-25.26: Map Reading and Land Navigation. Using the side of your compass, draw a line towards the highway that youre on. Hand placement: Insert your thumb through the thumb loop and the index finger along the compass. You can use this feature to set your compass in the dark. 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. My 159-page, fully illustrated book is yours for the asking. Your article very useful for me and it helps me understand more about compass. In your case, however, your declination is 004 degrees West, meaning you'll have to add 004 degrees before you set your compass. So, if you know where you are on the map, look ahead and see what features you can see. Before we do that, lets take a closer look at declination. Look at the index line and read the number. 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. Open it up using the cloud-based editor and begin editing. Take your compass and turn the compass housing (bezel) until the red orientating arrow is in line with the direction of travel arrow. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. So there you have it. What if youre not on a trail, but you just know the general area youre in? 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. 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. Look through the sighting slot and find some target (a tree, boulder, whatever) that lines up with your sighting wire. A compass is a device used for navigation and orientation. Any kinds of magnets whatsoever. More or less, where the second line meets the first is where you are on the map. Move the lens holder: Slightly push forward the lens holder. Where the line intersects with the highway is where you are on the map. The red end of the needle must be pointing to the top of the map. Now, read the degree marking under the fixed black index line. Step 1 Determine the direction of the map of the declination and its value from the declination on the map. STEPS 1.Ensure the map is on a level surface, place the compass parallel to a north-south grid line with the cover side of the compass pointing towards the top of the map. You discover that it has a bearing of 176. If your map already has a line to show magnetic declination, you can take your compass and line its edges up along this. EMERGENCY PREPAREDNESS & More: A Manual On Food Storage and Survival: 2nd Edition Revised and Updated. 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. Using your protractor or other straight edge, you draw a line from your current position in the direction of where you want to go. Check the declination of your local location on your map or on a website. Your lens piece will appear just above your thumb loop. Positioned the cover of the compass toward the top of the map. When moisture seeps into the lens case of your lensatic compass, it causes major problems. Place the three remaining fingers below as if you are holding a gun. Place your compass base plate on your map so the edge of the compass is aligned with the north-south meridian lines. Sound complicated? At Advnture, we never head out into the backcountry without a map and compass. Brett May 23, 2016 Last updated: June 2, 2021. navigation and combat. Draw a line on the map at 130 degrees from Saddle Mountain. You see that its 230 in relation to your location. 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). But lets say youre in the Muir Woods near San Francisco and youre facing true north. So your true bearing would be 166. ENROLL NOW. The legend. 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. Look at the red needle to see which direction it is pointing. Doing that with a lensatic compass is much like doing that with any other compass. You then see where the line you drew intersects with the protractor's numbers, in this case 062 degrees. This was developed. As a result, your real bearing is 166. To get among the sources, you can discover the fascinating point to acquire. If youre in the Adirondacks, add 14 degrees to get a correct bearing of 194 degrees. Now draw the bearing line using the edge of the compass, and extending it in the desired direction. Huzzah! Turn your entire body as a unit until your predetermined azimuth falls under the fixed black index line. On your map, though, you can see the two spots. 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. Make sure the degrees of the dial are readable. Just follow these lensatic compass instructions: Open the compass: Let the cover and the base form a 90-degree angle. Step 1 Orient the map. The lensatic compass is used by the U.S. Military.

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