If the local declination is positive, subtract the declination amount from the bearing you just derived. USING THE MILITARY LENSATIC COMPASS - PowerShow You notice another mountain peak out in the distance, but you dont know what its called. Using a Lensatic Compass - land navigation A lensatic compass is just one of the many navigational tools we have built. To obtain a heading from our map, we may use our compass as a protractor. Where can these symbols be found. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. Lets break down the individual parts of a lensatic compass so you can understand every element behind how it works. Make an "L" shape with the index finger and thumb of your other hand. What if you dont have access to a compass that can compensate for declination? Turn the map and compass together until the red needle is pointing north. We need to compensate for the compass now that weve placed it on the map so that we can appropriately orient and travel. Now were going to find out where exactly we are on that line. Lay the compass on the map, using the straight edge to create a line from your starting point to your destination. You can also use this website to get up to date declinations. 3. NY 10036. You can use this feature to set your compass in the dark. From point A to point B, thats your bearing. ), but youre not sure where. number of degrees in a circle (360: north is 0 or 360, east is 90, south is 180, and. See the line labeled the agonic line? When you point your compass towards true north, the needle will point slightly east. Now it's time to take out the map. 1. Determining a Bearing, or "Shooting an Azimuth", Using Your Compass Sights to "Shoot an Azimuth". Orienting the Map with aLensatic Compass. How to Pack a Backpack Are You Doing it Right? Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map. At Advnture, we never head out into the backcountry without a map and compass. How to Use a Compass to Get Your Bearings. Instructions for the US Army Lensatic Compass. Contains - YUMPU This is commonly known as puttingthe red in the shed. Youre in the right place! 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. Orienting the Map with an Orienteering Compass. When this happens, its time to orientate using a compass. 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. how to orient a map using a lensatic compass; how to orient a map in military; orient a map using a lensatic compass powerpoint ), Set Your Compass for Your Intended Azimuth. Turn your declination-adjusted compass dial so due North is at the index pointer. We can find out easily enough, though. The Lensatic compass is used to determine 'azimuths' or 'compass bearings' (horizontal angles). The plotted line cuts through Mt. Just follow these lensatic compass instructions: Open the compass: Let the cover and the base form a 90-degree angle. He is currently the President of the London Mountaineering Club, training to become a Winter Mountain Leader, looking to finally finish bagging all the Wainwright fells of the Lake District and hoping to scale more Alpine 4000ers when circumstances allow. Turn your compass on its side. Last update on 2023-03-04 / Affiliate links / Images from Amazon Product Advertising API. To avoid that problem, lets adjust our compass to take declination into account. functional from -50F to 150F. Influences can be the factors of how the people life runs. So, if you know where you are on the map, look ahead and see what features you can see. 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. Take your compass and line up the edges with the north-south gridlines on your map. Thanks so much for sharing! 1. To determine the direction, or bearing, from one point to another, you need a. compass as well as a map. 5. Open the cover completely and pull back the rear sight. To find directions from your map, you're going to need a protractor, a special instrument used for measuring angles. Gently pull the lid down until the sighting line is visible through the lens. Magnetic north is now off the coast of Greenland, but true north is at the very top of the world. Lets say youre out hiking. Standard compasses use floating dials, but lensatic compasses use a damping mechanism powered by electromagnetic induction. 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. Its 230 degrees in reference to your position, as you can see. Position the eyepiece at a 45-degree angle to the . Pros . 4. You see that its 310 in relation to you. Set your compass dial to 000 degrees. First, use your compass to get a bearing on a peak of Saddle Mountain. SPC Presentation - ORIENTING A MAP USING A LENSATIC COMPASS For bearings of 181 to 359 degrees, rotate the bezel clockwise. Youll want to stick to areas that are cool and dry, and dont offer any immediate threats to technological devices. If the contour interval is 10 meters, then what is the change in elevation of each intermediate contour . Shoot a bearing with your compass at the peak of Saddle Mountain. Remember, human features are the last port of call and, whats king again? 1. 3. So, how are you going to acquire your point position? Wrap your middle, ring and pinky finger around your thumb for support. 071-COM-1011 (Orient a Map Using a Lensatic Compass) If you point your compass towards true north, your compass needle is going to point a little to the east. But not to you, I trust. 1. Designate your starting and ending points on the map. Center the compass on the map, with one of the baseplates long edges running between the two places of interest. Step One: Take a Compass Bearing on the Ground. 5. In this case, it 15 degrees positive (east). Learn to navigate using a topographic map and a compass. 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. If the local declination is negative, add the declination amount . 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. Look at your map, or use a website to see your local areas declination. It is the bread and butter of navigation and a good habit to get into every time you set off in any given direction. 3. Save my name, email, and website in this browser for the next time I comment. PART 1 Basic Land Navigation Module 6 Map Information WARNING This presentation is intended as a quick summary, and not a comprehensive resource. Your compass is now set. Ethan Allan thats the peak you saw. Bear in mind that an east declination value will be a positive number, and a west declination value will be a negative number. Hold the compass at eye level and point it at the object. On your map, shoot the back bearing that you just took with your compass from the top of Saddle Mountain. Well, that is, unless you're doing something silly like holding the compass backwards. Lastly, the reading lens also helps cover the compass and folds out; this is where the term lensatic comes from. Use the illustration above to familiarize yourself with the components of a lensatic compass. Execute your docs in minutes using our simple step-by-step instructions: Get the How To Use A Lensatic Compass you need. 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. Your compass is now set. A: To rotate a map in Beat Saber, you can hit the trigger button on your controller. Rotate the compass dial until north on the compass ring lines up with north on the map. 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. Learn Land Navigation Now. 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. Take a bearing to a visible landmark using your compass. Well, youre going to have to do some math with all your bearings to make sure you get a true bearing. Orient you compass with the bearing, and draw the bearing line. Once you've got the bearing you can transfer it to the map. Map Reading and Land Navigation: FM 3-25.26. This video shows how to orient a map with a compass and briefly discusses magnetic declination. Turn your entire body as a unit until your predetermined azimuth falls under the fixed black index line. ","acceptedAnswer":{"@type":"Answer","text":"A: To rotate a map in Beat Saber, you can hit the trigger button on your controller. These other objects can interfere with compasses, and no matter how miniscule the differences may seem, it can leave an impact. Future US, Inc. Full 7th Floor, 130 West 42nd Street, 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. Pull the ring underneath the compass and put your thumb through. Your action from here depends on the value and direction of your declinationeast or west. Related Tags. Line it up with that. You cant shoot a bearing on the end point in your terrain since you cant see it. Manual Cammenga Lensatic Compass (page 1 of 16) (English) - Libble.eu Position of the point. Find two or three easily identifiable features or landmarks on your map and then try to identify them in the terrain, or vice-versa. Hold compass up to eye level and view larger side card for "direction-of-travel" compass. That would be 130. Yeah, book is the most effective tool that can be made use of for affecting your life. Line your lensatic compasss base plate up with the maps north-south lines. In this case, it would be 204 (24+180). There are two ways of doing this. Sometimes limited visibility means terrain features may not be visible. Your cheek should be resting on the base of your thumb. 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. Orienting the Map with anOrienteering Compass. The housing lines should be parallel with the maps vertical grid lines. If you have already adjusted your compass for magnetic declination, your map is now oriented and youre good to go. Take your compass and line up the edges with the north-south gridlines on your map. Using the rotating bezel, turn it until the direction of travel arrow lines up with the north arrow. To prevent this issue, well tweak our compass to account for declination. SPECS dimensions:4.1" x 2.4" x 0.6" |10.4 x 6.2 Read More. Experience is the best way to learn and wed highly recommend booking a navigation course to really hone your skills. (Note: if you have a compass with an adjustable declination the adjustment needs to be set to zero). to orient the map to find your position. Doing that with a lensatic compass is much like doing that with any other compass. Visit our corporate site (opens in new tab). When you have a line position, you know that youre on some identifiable line on the map (trail, ridge line, etc. 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. Map & Compass: Adjust for declination & orient the map - Andrew Skurka Whether or not you participate in orienteering, I'm confident you'll find that a properly oriented map is a huge help in finding your way. Fog or dense forest may mean you cant see but a few feet around you in any direction. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); What is a Lensatic Compass and How to Use Them? Take that bearing and plot it on the map using the technique explained above. No declination exists and you dont have to adjust your compass. Place the fully opened lensatic compass on the map with As a result, your real bearing is 166. Heres our step-by-step guide to the most straightforward. 4. 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. 2. B. Using your protractor or other straight edge, you draw a line from your current position in the direction of where you want to go. Video: How to Use a Lensatic Compass (U.S. Army, 1966) My 159-page, fully illustrated book is yours for the asking. Step 2: line the compass up with the map. Hand placement: Insert your thumb through the thumb loop and the index finger along the compass. Knowing how to orientate a map is just one facet of the wider skill of knowing how to read a map. 3. 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Because my magnetic declination is 4E, Ill move the black arrow outline to the red hash marks next to E DECL.. From the compass, to GPS, to now even your mobile devicetheres no shortage of navigational tools. When you face true north, magnetic north is roughly 14 degrees to the left, or west, of you. Step 3: Find a path that leads to the horizon. 4. Identify where you are on the map and place the compass edge over this location. Place the three remaining fingers below as if you are holding a gun. The bezel clicks as it moves--three degrees for every click. Open the compass: Let the cover and the base form a 90-degree angle. 5. Make sure the degrees of the dial are readable. Make sure the travel direction arrow is pointed in the direction you want to go. If your compass doesnt have a declination adjustment key, simply make the adjustment on the spot. Lets say youve hiked the peak of Camels Hump in Vermont. Look at the red needle to see which direction it is pointing. Assume youre southeast of Saddle Mountain and northeast of a few of lesser peaks. How to Use a Compass: The Ultimate Guide to Navigation New York, You need to know where youre going before toying with the compass. durability, and its hyper-accuracy in land. But its important to understand the different types of navigational toolsincluding a lensatic compass. There are so many different kinds of compasses, it can be hard to keep up. For bearings of one to 179 degrees, rotate the bezel counter-clockwise. A map so lined up is easier to interpret and follow than a map spread out haphazardly. Sight an azimuth to any visible terrain feature that appears on the map. Enroll in my personalized step-by-step video-based online course. 2. Sounds like a lot more than a regular compass, doesnt it? Map-and-Compass Skills: How-To - TREAD Magazine
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