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. A detailed inspection is required when first obtaining and using a compass. However, a compass has to be checked periodically on a known line of direction, such as a surveyed azimuth using a declination station. In one condition, the soldier was provided conventional land navigation equipment that included a paper map, protractor, lensatic compass. Inspecting a compass part 1 basic land navigation compasses are delicate instruments and should be cared for accordingly. A magnetic compass is the most basic modern compass type.
Importance land navigation is a skillset which takes time and practice in order to become proficient and confident. Plotting a bearing on a map using a round lensatic compass. Resection with a lensatic compass is a process whereby you can determine your own location from that of two known points in the distance. Lensatic compass b170249 student handout pdf book manual. It has a magnetized needle which aligns itself along the earths magnetic northsouth polar axis when held horizontal. The term lensatic refers to the magnifying lens that helps you use the compass more effectively. Use the engineer compass to find the direction by lining up the compass with an object. The engineer lensatic compass is a precision instrument useful in measuring directions to objects and for land navigation. Shows how to use the usgi issue lensatic compass to. To use your lensatic compass to find the direction of your intended azimuth which you probably got from your map, using your protractor twohand hold of the lensatic compass. As the name implies, the lensatic compass employs a lens. With solid landnavigation skills, youll be more confident and at home. Module 1 lensatic compass part 1 basic land navigation. This approach reflects duty position responsibilities in map reading and land navigation.
Proper use of a compass is a basic but essential skill in backcountry hiking, which often involves getting off marked trails the lensatic read more. I have half a dozen navigation apps on my phone, so i rarely get lost. A compass is an instrument used for navigation and orientation that shows direction relative to the geographic cardinal directions or points. Aug 23, 2019 with solid landnavigation skills, youll be more confident and at home in the wilderness. The idea is to be conscious of the detours, keep them short.
Apr 20, 2020 the lensatic compass is used by the u. Usually, a diagram called a compass rose shows the directions north, south, east, and west on the compass face as abbreviated initials. There are a lot of different kinds of maps out there, but for land navigation out in the wilderness we want a specific kind of map. The lensatic compass is the most common and simplest instrument for measuring direct ion. Some people may think that compasses are too hard to read but most come with a manual that will teach you how to reach the particular compass you have chosen. Understand the function of a lensatic compass and its make up 12. One advantage is its probably more accurate when it comes to shooting azimuths, meaning the act of determining the specific compass direction to a spot on the earth. A program of demonstrated proficiency of all the preceding skill levels to the specified conditions and standards is a prerequisite to the successful implementation of a buildingblock training approach. Before continuing with the slide the lensatic compass has 3 parts with features on each part. Download lensatic compass b170249 student handout book pdf free download link or read online here in pdf. From your known location on the map, you take your protractor, line it up to true north, find the angle to your next point, adjust for declination, and then shoot that angle with your. When the compass is used, the rose can be aligned with the corresponding geographic directions. Induction damping allows the dial to seek magnetic north and come to a complete rest in much less time than a unit without induction damping. It is used for navigating terrain, determining magnetic north, and plotting courses.
How to use a lensatic military compass navigate safely in. The ust lensatic compass is an essential tool you will want to take with you on all your outdoor adventures. Page 15 the cammenga lensatic compass uses induction damping to slow the rotation of the magnet. Land navigation course irminfolk odinist community. Among the most basic instruments for land navigation and orientation is the compass. Part 1 basic land navigation on point preparedness. Today we are going to continue from our last article on reading and associating terrain and discuss compass selection for use in land navigation compass selection is often driven by personal preference, much like some prefer one vehicle make and model to another.
How to use a lensatic military compass navigate safely. Land nav task 10 orient a map using a lensatic compass standards. Part 1 basic land navigation part 1basic land navigation the lensatic compass description parts and features the topographic map description how to read the land terrain features terrain and map association 12. A lensatic compass, also called a military compass, is a more advanced and useful version of a magnetic compass. Compass part 1 basic land navigation w r o n g sighting lensatic compass part 1 basic land navigation w r o n g sighting lensatic compass part 1 basic land navigation centercenter hold methodhold method for taking a target azimuth bearing the centerhold technique is less precise, but is faster to use and can be used under all conditions of. With solid landnavigation skills, youll be more confident and at home in the wilderness. Track present location, determine distance, sense of direction, reading map. Each student is furnished a lensatic compass for use in periods one. How to use a lensatic compass protractor the normal method to transfer angles from your lensatic compass to your map and back is with a protractor and a pencil.
Compasses are the primary navigation tools to use when moving in an outdoor world where there is no other way to find directions. Navigation tools and activities california cadet corps. Besides our compass, our map is our next essential item for land navigation. Shows how to use the usgi issue lensatic compass to orient. Online army study guide land navigation map reading. Basic land navigation southeast missouri state university. Unfortunately, they are also the most complex to explain and to use because north on the map is different than north according to the compass.
Land navigation a comprehensive guide rebuilding civilization. Excellent for land navigation, orienteering, learning map and compass. Understand how to orientate your compass to read grid north a free pdf. Theyre also called military compasses because this is the design used by the us military. Nomenclature the lensatic compass consists of three major parts. A comparison of soldier performance using current land. It has its advantages and disadvantages over the orienteering compass. Lensatic compass description preferred by military for its precision and durability, and its hyperaccuracy in land navigation and combat. They give the basics of how they work, how to shoot an azimuth, how to get a bearing, and so on. All books are in clear copy here, and all files are secure so dont worry about it. Then, from where you are, shoot an azimuth to the feature as accurately as possible, and calculate the back azimuth from that reading. The intent of this lesson is to ensure students are prepared for follow on classroom and field instruction in land navigation. Land nav task 10 orient a map using a lensatic compass. If youve found your way to this instructional guide, you have probably recently become aware that your compass is called a lensatic compass and have asked how to use a lensatic compass.
Land navigation course the compass lesson 1 youtube. My online land navigation course includes four hours of video instruction, and two downloadable pdf books, all for about the same price as a. Oct 11, 2010 today we are going to continue from our last article on reading and associating terrain and discuss compass selection for use in land navigation compass selection is often driven by personal preference, much like some prefer one vehicle make and model to another. This is the corrected version of my previous, with actually valid information this time.
Sep 17, 2009 this is the corrected version of my previous, with actually valid information this time. Black indicates cultural manmade features such as buildings and roads, surveyed spot elevations, and all labels. Read online lensatic compass b170249 student handout book pdf free download link book now. Battle tested shock, water, sand proof, and functional from. The tritium lensatic compass is built to the demanding specification milprf10436n. Compass selection and recommendations its tactical. Used for calling in artillery and general orienteering.
This one will deal with night and low light navigation, a topic that could span several lengthy articles on its own. Land navigation map reading what is the field manual for map reading and land navigation. A lensatic compass is also known as a military compass, and these compasses are used to cross terrain that may not have trails or may be more challenging to. Without the aid of references and given a military map, protractor, and back azimuths from two 2 known points, plot a resection, in order to identify your position on the map, per fm2126 scrs 1201. To use your lensatic compass to find the direction of your intended azimuth which you probably got from your map, using your protractor twohand hold of.
Seven tritium micro lights allow for navigation in lowlight conditions, without the need for. The techniques shown below are the very heart of land navigation with a map and compass. After reading those two articles anyone should be able to go out and perform basic land navigation with a map and lensatic compass. With solid land navigation skills, youll be more confident and at home in the wilderness. Choosing the best compass for you depends on what you want to use it for. These compasses are not artillery compasses but are used in a very similar fashion.
Introduction the instructions in this booklet are for the cammenga lensatic compass currently being distributed by the u. Oriented the map to the ground using a compass so the northseeking arrow of the compass was within 3 degrees 20 mils of the angle shown in the gridmagnetic gm angle of the declination diagram shown on the map. Part 2 intermediate land navigation on point preparedness. Its impossible to be lost knowing four basic skills. Instead you will clmpass an imaginary line that runs down the center of the compass. Learn how to use the lensatic compass used by the us military. Mar 05, 2019 with a handheld compass, we cannot set the compass on line, and then look down and note the position of a needle, as with a surveying compass, but must read the bearing simultaneously with the sighting. Unfortunately, they are also the most complex to explain and to use because north on the map is. It is used to lay out the magneticgrid declination for the map, which, in turn, is used to orient the map sheet with the aid of the lensatic compass. Without the aid of references state the procedures used to navigate using a lensatic compass, per fm2126 scrs 1201. Right now we are just going to go through the names of each item. Directions for using an engineer lensatic compass gone. Land navigation with map and lensatic compass land. Covered in various markings and with multiple moving parts, it looks as though it.
Adjust the compass for magnetic declination and then follow the steps in table 41. What to consider when choosing the best compass for you. Part 1 basic land navigation the lensatic compass the topographic map the land and map association part 2 intermediate land navigation making sense of direction. Shows how to use the usgi issue lensatic compass to orient the map, plot a course based on two welldefined. Using the military lensatic compass we will learn basic land navigation skills to keep us from getting lost. At first glance, the lensatic compass can seem a bit daunting. Calvert created 1 september 2002 last revised 4 december 2008 coming across an old fm2125, elementary map and aerial photograph reading, from 1944 reminded me of the lensatic compass, an instrument not as commonly known these days as it. Basic mastery of the tools of land navigation map, compass. The effects of iron ships on the compass needle, with their permanent and induced magnetism, are very complicated to describe and have been the subject of much study. This compass is super compact, so it wont take up much needed space in your bag. As the name implies, the lensatic compass employs a lens in the rear sight that allows precise readings of the. Basic mastery of the tools of land navigation map, compass, and protractor is absolutely necessary in order to ensure our success. This compass is known throughout the world for its precision, reliability, versatility, ruggedness and much more. Jul 11, 2019 lensagic ships compass has a rotating graduated disc, like the lensatic compass, and the fixed index is called the lubbers line.
Cammenga precision lensatic instructional booklet pdf download. Practice by answering the questions in the topic land navigation map reading online at. The idea is to be conscious of the detours, keep them short, and try to zig as often as you zag. May 26, 2015 using the military lensatic compass we will learn basic land navigation skills to keep us from getting lost. Engineer lensatic compass manual pdf learn how to use the lensatic compass used by the us military. Cmmg official us military tritium lensatic compass. Campers, bikers, boaters, hunters, foresters, surveyors and many more all use compasses in their businesses and lives. A compass in good working condition is very accurate. Topic page lensatic compass 4 maintenance and care 6 compass techniques 8. Using a compass and a map together, is very powerful for locating your current position.
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