how to orient a map using a lensatic compassssrs fill color based on multiple values

Lay your compass on the map and line up its edge with a known landmark. SPECS dimensions:4.1" x 2.4" x 0.6" |10.4 x 6.2 Read More. 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. Lensatic compasses are seasoned or experienced navigator tools. New York, Lets pretend youre on a hike. Lensatic compasses aremade upof three parts: cover, base, and reading lens. Your map (and yourself) are now be orientated north. 2. Lets say youre out hiking. 4. Looking at the photo below, let's say you're at the north end of Sheeler Lake, where the penciled X is. Your action from here depends on the value and direction of your declinationeast or west. This is why you should never take a bearing off a sheep. How Should I Set My GPS and Compass? The instances navigation needs to be most spot-on are when visibility is compromised. SEE IT. Magnetic north is now off the coast of Greenland, but true north is at the very top of the world. Now, hold the compass level and squarely in front of you. 3 Navigation: Compass Basics Read, Understand, and Remember! The plotted line cuts through Mt. 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. Adjust for magnetic declination. 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 . The two basic techniques for using the lensatic compass . Where the second line intersects with the first is where youre at on the map, more or less. Youre somewhere on that line, so you know have a line position. 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. Look at the red needle to see which direction it is pointing. Open the cover completely and pull back the rear sight. Everything on your map will be reversed if youre looking south and holding the map right side up. But heres the catch: depending on where you are on the planet, the angle of declination varies. Now, read the degree marking under the fixed black index line. It would be 204 (24+180) in this situation. If not, recalibrate before continuing. 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. Where the line intersects with the highway is where you are on the map. We just dont know where exactly. Now it's time to take out the map. OEC G&V. Download. My 159-page, fully illustrated book is yours for the asking. Center the compass on the map, with one of the baseplates long edges running between the two places of interest. Well say the declination value is 10 degrees. The skill allows users to find north with ease, which is crucial for navigation. Orient the map to the terrain. Flip your compass upside down. Lets return to Muir Woods as an example. To prevent this issue, well tweak our compass to account for declination. You can use this feature to set your compass in the dark. 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. The following 30-minute U.S. Army training video from 1966 shows how to find your direction, orientation, and location with a mil-spec lensatic compass. A lensatic compass is just one of the many navigational tools we have built. You want to go cross country directly to Devil's Wash Basin, a deep and beautiful lake you've heard a lot about. Shoot the reverse bearing you got with your compass from the top of Saddle Mountain on your map. The Lensatic compass is used to determine 'azimuths' or 'compass bearings' (horizontal angles). This visualization has been approved for public release.Storyboard developed from the STP 21-1 Soldier's Manual of Common Tasks Warrior Skills Level 1, September 2017Approved by the Center for Initial Military Training (CIMT) G-3/5/7, Initial Entry Training, Fort Eustis Virginia. Using the approach described above, plot that bearing on the map. Hold the compass steady and level, and up to your face. Say your azimuth was 170 degrees. Welcome back to the Land Navigation Manual for the Art of Manliness. navigation and combat. 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. 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. Learn to navigate using a topographic map and a compass. 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. No declination exists and you dont have to adjust your compass. Ethan Allan thats the peak you saw. Place the compass on your map with the edge along a north-south grid line. Using a little screwdriver or the metal piece that came with your compass lanyard, turn the small screw. Youre on that line, so you know where youre standing. This is because it is prepped to point instead to magnetic north once its lined up with your compass needle. A lensatic compass features a small pop-out area for your thumb, and a lid on top of the main compass body. 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 know our point position, we can identify any landmark that we see in our terrain by using the map. To do so accurately, however, we must first adjust our compass for magnetic declination so the reading taken from the compass arrow . 1. 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. This makes it easier to relate what you see on the map with what you see on the ground. The techniques employed when using the lensatic compass are as follows: a. Knowing how to orientate a map is just one facet of the wider skill of knowing how to read a map. There is no declination, and you do not need to adjust your compass. However, we should be able to figure it out rather quickly. Sounds like a lot more than a regular compass, doesnt it? The rear bearing is at a 50-degree angle. The cover is used to protect the compass and alsoincorporates thesighting wirewhich helps you determine direction. Line your orienteering compasss base plate up with the maps north-south lines. Turn your map so that north on the map corresponds to the needles orientation. Want a free ebook on Land Navigation? Were headed to the Wichita Mountains Wildlife Refuge in Oklahoma for this example. 2. 3. But heres where things get tricky: the angle of declination changes depending where you are on the earth. We may then use our compass to begin going in the direction we need to go in order to reach our destination. 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. Your lens piece will appear just above your thumb loop. Future US, Inc. Full 7th Floor, 130 West 42nd Street, We can find out easily enough, though. Map Reading and Land Navigation: FM 3-25.26. Find the magnetic declination on your map. When you purchase through links on our site, we may earn an affiliate commission. The basics of orienting yourself with a map and compass. Read your compass (Figures 5-25 and 5-26). 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. Preferred by military for its precision and. From point A to point B, thats your bearing. The map is now oriented to the terrain. Orienting the Map with aLensatic Compass. Read the number at the index line. Youve got your trusty compass and a map of the area, but you dont know exactly where you are in relation to the map. While this doesnt technically register as an electronic, were going to treat it like one. The first step in orienting ourselves with our map and compass is to double-check that north on the map corresponds to north in our landscape. Take your compass and turn the compass housing (bezel) until the red orientating arrow is in line with the direction of travel arrow. Step 3: Find a path that leads to the horizon. 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. Well, youre going to have to do some math with all your bearings to make sure you get a true bearing. It is easy to learn and it can be done with just a map and compass. 2. To use your lensatic compass to find the direction of your intended azimuth (which you probably got from your map, using your protractor): 1. 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. Pull the lens holder up so that it is at a 90-degree angle to the base of the compass. Now its time to use the lens. Using your protractor or other straight edge, you draw a line from your current position in the direction of where you want to go. We know were somewhere along HW 115 and south of Saddle Mountain. Well, that is, unless you're doing something silly like holding the compass backwards. pointsnorth, east, south, and westbut some are marked additionally with the. Take a compass bearing on the peak to your southwest. Thankfully, its notwhether orienting your map with a compass or without, this is a skill that can be learned in minutes and which can be done in a matter of seconds out in the field. Use your thumb to pull the thumb ring back about halfway. Shoot a bearing with your compass at the peak of Saddle Mountain. 3. You discover that it has a bearing of 176. Have you noticed the agonic line? Position the eyepiece at a 45-degree angle to the . Uses a retractable lens to read the bearing while. 3. The edge of the compass baseplate is now pointing in the direction of the visible landmark from which you took your bearing. For this task, the lensatic compass really shines. Come on in and save lots of money! But it isnt just magnets there are other culprits at play, here. Want to start taking action on the content you read on AoM? Youll notice the north/south symbol on a corner of your map with a straight 90 line going up. At this point, your map is almost oriented. Fortunately, orienting your map is simple. This step comes after aligning our map and compass needle to magnetic north if using a compass that doesnt have a declination adjustment key. 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. 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. Module 1 Lensatic Compass. FM 3-25.26: Map Reading and Land Navigation. The obvious drawback here is that such an approach is impossible in poor visibility. Make an "L" shape with the index finger and thumb of your other hand. Best Overall. Well say the declination value is 10 degrees. Above: For this example in the Grand Canyon, grid north ("GN") differs from true . When you return from using your lensatic compass, take it apart as much as possible to detect any moisture. 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. Take that bearing and plot it on the map using the technique explained above. (Note: The magnetic compass needle should be ignored.) Turn the compass and the map as a unit until you box the needlei.e., Put Red Fred in the shed. You should then be able to roughly work out which way is north, east south or west using your maps gridlines. Enroll in my personalized step-by-step video-based online course. 9-4. We may use the map to identify any landmark we observe in our landscape once we know our point location. It. Method #2. 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. Youll want to stick to areas that are cool and dry, and dont offer any immediate threats to technological devices. Turn the compass and the map as a unit until you box the needlei.e., Put Red Fred in the shed. The fundamentals of using a map and compass to find your way around. So its declination would be 14W. Draw a line towards the roadway youre on using the side of your compass. Some of the best land navigators around are orienteers--those who participate in the cross-country running/map reading sport of orienteering. Hed just line his map up with the features of the lake we were currently on to find our portage to the next lake. When you face true north, magnetic north is going to be left, or west, of you by about 14. 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. The reason contours are king is that they are fixed, at least in the timescales were talking about here. These other objects can interfere with compasses, and no matter how miniscule the differences may seem, it can leave an impact. Return from Lensatic Compass to How to Use a Compass. Well, we can use our compass as a protractor to take a bearing from our map. Turn your map so that north on the map, points in the same direction as the needle. My magnetic declination is 4E, so Ill be moving the black arrow outline towards the red hash marks that are going towards E DECL.. Its a subtle difference, but its a roundabout way of saying lensatic compasses are less prone to interference than others. Alex is a qualified Mountain Leader, adventure writer and content creator with an insatiable passion for the mountains. Area Position. Come to think of it, I dont even know if he had a compass. 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. Overview. Save my name, email, and website in this browser for the next time I comment. Oriented the map. Let's say you see a water tower off in the distance. Close is good enough in horsehoes, but I'm hoping exact is the standard for artillery fire. Here's an example from an older map of the Grand Canyon. 3. I guess the military needs the extra accuracy now and then say, for example, to precisely place artillery fire. functional from -50F to 150F. We'll start from the beginning, and go through everything you need to know to find your way over the terrain. Adjustable Declination Compasses. Declination was taken into account while adjusting the compass. An "azimuth" is pretty much the same as a "bearing." The lensatic compass must always be held level and firm when sighting on an object and reading an azimuth. For instance, line up roads, mountains, water towersany terrain features that stand out enough to make orienting the map possible. Before we do that, lets take a closer look at declination. Because this method of orienting your map requires having visuals on features or landmarks in the terrain, good visibility is a must. Home / Educational Resources / Math Resources / Compass: Definitions and Examples. This was developed for the Center for Initial Military Training, FT Eustis, Va. Articles - Email - Linkedin - Facebook - Instagram. durability, and its hyper-accuracy in land. To obtain a heading from our map, we may use our compass as a protractor. Imagine that you want to hold it as if it were firmly mounted in that position. 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. As previously stated, orientating your map using visual features is only as good as the visibility on any given day. This was developed. Huzzah! Declination is the angle formed by true north and magnetic north. Lets go back to our Muir Woods example. Customize the template with smart fillable areas. If your map already has a line to show magnetic declination, you can take your compass and line its edges up along this. First things first. Orient a Map Using a Lensatic Compass 071-329-1011 Conditions: Standards: Orient the map to the ground using a compass. When you face true north, magnetic north is roughly 14 degrees to the left, or west, of you. No worries. Take a bearing to a visible landmark using your compass. You want to find your position using the technique of partial resection, so you need to know that tower's bearing with a high degree of accuracy. Next, without changing the orientation of you map, move your compass so that its edge is touching the point you are plotting to/from and the compass dial reading matches your bearing. Heres how it works. What if youre not on a trail, but you just know the general area youre in? Your email address will not be published. We need to compensate for the compass now that weve placed it on the map so that we can appropriately orient and travel. 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. Youll see that it shows two arrows when you turn your headset or controllers around to show the new orientation of a map. Turn the little screw using a small screwdriver or the little metal piece that comes with your compass lanyard. Use your index finger to steady the front of the compass. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); MyOpenCountry is a participant in the Amazon Services LLC Associates Program. What is the preferred method of using a lensatic compass when reading magnetic azimuths. With solid land-navigation skills, you'll be more confident and "at home" in the wilderness. A map and compass are useless unless you know how to use them properly. Method #1. The mils are in black, and are the outer measurements on the ring. 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! 2. Looking at the map is an easy way of finding which direction north or east are relative to your current position. 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. Lets break down the individual parts of a lensatic compass so you can understand every element behind how it works. 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. Make sure the travel direction arrow is pointed in the direction you want to go. Lay the compass on the map, using the straight edge to create a line from your starting point to your destination. First, open the compass to its fullest so that the cover forms a straightedge with the base. Brunton TruArc 8010 Classic Map Luminous Compass Brunton TruArc 8010 Classic Map Luminous Compass Item # WX2- 715075 / Mfg. Once you've got the bearing you can transfer it to the map. Orienting the Map with anOrienteering Compass. You look out into the distance and you see another mountain peak, but you dont know the name of it. Line your lensatic compasss base plate up with the maps north-south lines. The back bearing is 50. 1. PART 1 Basic Land Navigation Module 6 Map Information WARNING This presentation is intended as a quick summary, and not a comprehensive resource. But its important to understand the different types of navigational toolsincluding a lensatic compass. Positioned the cover of the compass toward the top of the map. Assume youre in the Adirondack Mountains of New York. Please refresh the page and try again. So in this episode, well go through the abilities youll need. 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. Not a problem. 3. EMERGENCY PREPAREDNESS & More: A Manual On Food Storage and Survival: 2nd Edition Revised and Updated. Use the illustration above to familiarize yourself with the components of a lensatic compass. 4. At Advnture, we never head out into the backcountry without a map and compass. Below, we offer a short, straight-talking guide to how its done. The cover is used to protect the compass and also incorporates the sighting wirewhich helps you determine direction. This webpage may also be used to get current declinations. PART 1 Basic Land Navigation USING THE MILITARY LENSATIC COMPASS Module 6 Map Information. Holding the compass up to your face, angle the rear sight so that you can read the compass dial clearly through the lens while peering through the sighting slot and lining your distant target (the water tower, in this case) up with the sighting wire. Orienting the Map with an Orienteering Compass. Housing lines should be parallel to the vertical grid lines on the map. The needle on your compass dial will always be pointing north, so when placing the compass on the map, the needle on the compass should match the map's north in order to orient yourself. Orienting, or aligning, the map is really easy with just 3 steps: Lay your map out on a relatively flat, smooth surface. Thank you for signing up to Advnture. 2. Draw a line on the map at 130 degrees from Saddle Mountain. You can always orient your map with a working compass. As long as you can hold the compass level and steady, the exact grip doesn't matter. 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. 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. Shows how to use the USGI issue lensatic compass to orient the map, plot a course based on two well-defined. 4. Lay the compass down on your map. To find the tower's bearing with your lensatic compass: 1. Determine your position on the map and set the compass edge over it. ? The big bang. Triangulate your position. So your true bearing would be 166. Hold compass up to eye level and view larger side card for "direction-of-travel" compass. c. There are two methods of holding the lensatic compass and sighting. Ethan Allan, the peak you observed, is cut through by the plotted line. Its 310 degrees in reference to you, as you can see. Survival Compass, Military Compass Hiking, Orienteering Lensatic Compass, Waterproof Navigation Compasses, Survival Emergency Luminous Sighting Compass. Positioned the cover of the compass toward the top of the map. Bear in mind that an east declination value will be a positive number, and a west declination value will be a negative number. What happens if you dont adjust your compass for declination? Step 2: Line up your lensatic compass with the North Star and make sure the index mark is on the star. Plot a line on the map from Saddle Mountain at 130. Magnetic north lines up exactly when youre on this line and facing true north. What if you dont have access to a compass that can compensate for declination? Through his hiking, mountaineering, climbing and trail running adventures, Alex aims to inspire others to get outdoors. 2. Take a bearing to a visible landmark using your compass. Tags: download Elcenter Course, mp3 download Elcenter Course, download mp3 Elcenter Course, mp3 gratis Elcenter Course, Elcenter Course lagu mp3 dan video mp4. (Note: if you have a compass with an adjustable declination the adjustment needs to be set to zero). Don't worry that your red orientating arrow doesn't point exactly map north. There are so many different kinds of compasses, it can be hard to keep up. 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. Youve got your dependable compass and a map of the region, but youre not sure where you are in respect to the map. Contours are king. 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. Nothing is permanent and contours are more permanent than pretty much everything else on a 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. Well, that is, unless you're doing something silly like holding the compass backwards. 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. 3. As we can see, the area Im in has a declination of 4E. If you don't, visit the page just hyperlinked. You can also plot a known compass bearing on the mapthe reverse process. Turn the map and compass until the needle on the compass aligns with the north-south grid lines on the map.

Southern Tier Enduro Results, Articles H