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. Turn the compass and the map as a unit until the luminous magnetic arrow is directly under the fixed black line. 4. Announcement: My online Land Navigation course includes four hours of video instruction, and two downloadable PDF books, all for about the same price as a typical paperback book. What wildlife can you see at Yellowstone National Park? The techniques employed when using the lensatic compass are as follows: a. With the map in a horizontal position, take the straightedge on the left side of the compass and place it alongside the north-south grid line with the cover of the compass pointing toward the top . When moisture seeps into the lens case of your lensatic compass, it causes major problems. Place your map in such a way that the terrain features line up with your maps features. When orienting a map, our aim is to position it so that the north-south grid lines on the map (eastings) are aligned north-south. What if youre not on a route and just have a broad idea of where you are? 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. 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! Navigate to your map. What if you dont have access to a compass that can compensate for declination? Thank you for signing up to Advnture. Program, Strengthen Your Tribe: A Report on the Atomic Athlete Vanguard, The Best Riddles for Kids (With Answers! 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 . north. Check the declination of your local location on your map or on a website. Last but not lease, lensatic compasses are prone to scratching. We may use the map to identify any landmark we observe in our landscape once we know our point location. Find two or three easily identifiable features or landmarks on your map and then try to identify them in the terrain, or vice-versa. Place compass on top of map. a. Looking at the photo below, let's say you're at the north end of Sheeler Lake, where the penciled X is. 3. Plus, as a web site visitor, you get a 50% discount off the regular price, meaning you get the whole course for $10. What if youre not on a trail, but you just know the general area youre in? So its declination would be 14W. This latter option is a cheat since grid lines have their own declination value. So there you have it. Yeah, book is the most effective tool that can be made use of for affecting your life. Ethan Allan thats the peak you saw. A visualization depicting the Soldiers Manual of Common Tasks (STP 21-1-SMCT) task Orient a Map Using a Lensatic Compass (071-COM-1011). Turn the compass and the map as a unit until you box the needlei.e., Put Red Fred in the shed. 2. 1. It. 2. 1. Determine your position on the map and set the compass edge over it. Place your compass base plate on your map so the edge of the compass is aligned with the north-south meridian lines. Instead of using your compasss arrow, youll align your needle with the tape arrow. Look directly down on the top (smaller card) of compass to view general orientation cardinal points. But it isnt just magnets there are other culprits at play, here. Easy-to-Read Thermometer - Cushion-mounted thermometer provides an "at-a-glance . 3. Open the cover completely and pull back the rear sight. 3. 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. The narration and imagery may seem old-timey in this era of high-def computer graphics . If your local declination is east of the agonic line, youll need to add the declination to the bearing on your compass; if your local declination is west of the agonic line, youll subtract the declination from the bearing on your compass. Use the lens to look through the sighting line to find another landmark, and repeat until you reach your destination. Thats your bearing from point A to point B. Its not unheard of for hikers to accidentally read their map upside down and end up facing south, rather than north. A lensatic compass features a small pop-out area for your thumb, and a lid on top of the main compass body. My 159-page, fully illustrated book is yours for the asking. This is also known as triangulation. When you point your compass towards true north, your compass needle is going to point a little to the west. Turn the map and compass together until the red needle is pointing north. 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. I guess the military needs the extra accuracy now and then say, for example, to precisely place artillery fire. But heres where things get tricky: the angle of declination changes depending where you are on the earth. Execute your docs in minutes using our simple step-by-step instructions: Get the How To Use A Lensatic Compass you need. 3. To find the tower's bearing with your lensatic compass: 1. Fill in the empty areas; concerned parties names, places of residence and phone numbers etc. He climbs when he should be writing, writes when he should be sleeping, has fun always. Assume youve climbed to the top of Camels Hump in Vermont. ? 3. The map is now oriented to the terrain. The legend. This webpage may also be used to get current declinations. A lensatic compass is often referred to as a military compass, and is typically used by the U.S. Military. Positioned the cover of the compass toward the top of the map. Its 310 degrees in reference to you, as you can see. Picture 1: Map Declination. The variation between magnetic north and true north is currently so minor that this can generally be ignored. When we know our point position, we can identify any landmark that we see in our terrain by using the map. Want to start taking action on the content you read on AoM? 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. Line up the meridian lines (the parallel lines inside the bezel) with a north/south grid line on the map. Choosing a selection results in a full page refresh. When you point your compass towards true north, the needle will point a bit to the west. 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. Assume youre going on a short trek from one location to another. Knowing how to orientate a map is just one facet of the wider skill of knowing how to read a map. The keys to successfully navigating the wilderness are being able to determine your position, know where youre going and understand how terrain affects your movement abilities. navigation and combat. Sound complicated? In this case, it 15 degrees positive (east). 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. The obvious drawback here is that such an approach is impossible in poor visibility. Assume youre in the Adirondack Mountains of New York. We know were someplace south of Saddle Mountain on HW 115. How can you get your point position then? This way you can see the object and the bezel at the same time. Return from Lensatic Compass to How to Use a Compass. This was developed. The lensatic compass must always be held level and firm when sighting on an object and reading an azimuth. This may arise when you don't know your current position but have taken a back bearing from a visible landmark (1) you can identify on the map. Compass (For Dummies) Beginner guide to map and compass - Survival Saturday Ep. Lets pretend youre on a hike. When orienting a map, our aim is to position it so that the north-south grid lines on the map (eastings) are aligned north-south. Open the cover completely and pull back the rear sight. In Part I, we covered how to properly use a compass, how to shootyour bearings, and the best map for navigating: the topo map. 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. When it comes to how to orientate a map, there are two main ways to do it. Learn Land Navigation Now. 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. Ensure that the compass bezel is set to 0 degrees i.e. Thanks so much for sharing! Shows how to use the USGI issue lensatic compass to orient the map, plot a course based on two well-defined. The bezel clicks as it moves--three degrees for every click. These other objects can interfere with compasses, and no matter how miniscule the differences may seem, it can leave an impact. You dont have your point position. 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. Your action from here depends on the value and direction of your declinationeast or west. Tilt it forwards until you can see your sighting arrow. The housing lines should be parallel with the maps vertical grid lines. Its declination would be written as 14E. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. The lensatic compass is comprised of different parts compared to a baseplate compass. Sight an azimuth to any visible terrain feature that appears on the map. Determine the correct magnetic azimuth to the designated point within 3 degrees using the compass-to-cheek method, or within 10 degrees using the center-hold method. 2 a. Orient the map using the first technique. 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 instances navigation needs to be most spot-on are when visibility is compromised. We guide you on how to orientate a map with or without your compass so that you can navigate your way through the backcountry. Using the approach described above, plot that bearing on the map. Using the side of your compass, draw a line towards the highway that youre on. Line it up with that. You can look through a small window of the top (thats the lens), and navigate smoothly from there. Plot a line on the map from Saddle Mountain at 130. On your map, shoot the back bearing that you just took with your compass from the top of Saddle Mountain. You can also plot a known compass bearing on the mapthe reverse process. Were ready to start orienting ourselves now that our compass has been corrected for local declination. Learn to navigate using a topographic map and a compass. Or maybe using the sun to help put your map somewhat the right way around. We can find out easily enough, though. This makes it easier to relate what you see on the map with what you see on the ground. Oriented the map. In this situation, you can use your compass to work out which direction magnetic north is and orientate from there. Its one of the most versatile navigation tools we have available today. Save my name, email, and website in this browser for the next time I comment. Lets say youre planning a short hike from one point to another. 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. Youve orientated the map. The basics of orienting yourself with a map and compass. There was a problem. You look out into the distance and you see another mountain peak, but you dont know the name of it. There is some technical difference between the two, but for all practical civilian purposes, the words are interchangeable. c. There are two methods of holding the lensatic compass and sighting. Youll want to stick to areas that are cool and dry, and dont offer any immediate threats to technological devices. Note that we will be moving and adjusting the compass on the map. Gently pull the lid down until the sighting line is visible through the lens. Come on in and save lots of money! 4. NB. There is no declination, and you do not need to adjust your compass. (Note: The magnetic compass needle should be ignored.) Thats 130 degrees. Now, hold the compass level and squarely in front of you. A visualization depicting the Soldier's Manual of Common Tasks (STP 21-1-SMCT) task Orient a Map Using a Lensatic Compass (071-COM-1011). Below, we offer a short, straight-talking guide to how its done. Turn your declination-adjusted compass dial so due North is at the index pointer. You just need one more piece of information to figure out exactly where you are on the map. Now it's time to take out the map. Lets say youre out hiking. Lensatic compasses aremade upof three parts: cover, base, and reading lens. This step comes after aligning our map and compass needle to magnetic north if using a compass that doesnt have a declination adjustment key. SEE IT. Have you noticed the agonic line? Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map. It would be 204 (24+180) in this situation. Remember, maps are drafted with north at the top. Get my Land Navigation coursehere. If not, recalibrate before continuing. Read the azimuth: Lastly, ensuring the dial is floating, look down on it and read the azimuth. Its 230 degrees in reference to your position, as you can see. All you have to do is shoot a bearing towards the unidentified peak. Your compass is now set. When you do know exactly where you are in relation to your map, you have your point position.. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); What is a Lensatic Compass and How to Use Them? Well, that is, unless you're doing something silly like holding the compass backwards. Using the rotating bezel, turn it until the direction of travel arrow lines up with the north arrow. Hey, it happens! Youve got your trusty compass and a map of the area, but you dont know exactly where you are in relation to the map. We'll start from the beginning, and go through everything you need to know to find your way over the terrain. Open the compass all the way so that the cover locks into position against the base, forming a straightedge along the left side. Once you reach your landmark, align yourself again to make sure youre on the right path. FM 3-25.26: Map Reading and Land Navigation. 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. SPECS dimensions:4.1" x 2.4" x 0.6" |10.4 x 6.2 Read More. 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. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); MyOpenCountry is a participant in the Amazon Services LLC Associates Program. Standard compasses use floating dials, but lensatic compasses use a damping mechanism powered by electromagnetic induction. 1. As magnetic north changes depending on where you are in the world, you have to ensure you adjust your compass accordingly. When you have a line location, you know youre on a maps recognizable line (trail, ridge line, etc. So in this installment, well go over the skills you need to do just that. Looking at the map is an easy way of finding which direction north or east are relative to your current position. Then tilt the mirror until you can see straight down into the bezel. There are step-by-step to use a compass.
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