A compass is an instrument used for navigation and orientation that shows direction relative to the geographic cardinal directions (or points). The cover contains the sighting lensatic compass technical manual wire, and serves to protect the compass when closed. This manual contains instructions for operation, organizational, field, and depot maintenance of compass, magnetic, un-mounted: M2. What’d life be without home grown tomatoes. Tritium Compass 3H Go Where Others Can&39;t Go.
The case cover should be pointing toward the top of the map. Lensatic Compass Liquid Filled Metal Case 2" Inch Rugged Heavy Duty Military Magnetic Directional Engineers for North South Map Positioning Easy Readability, Polarity Direction Finder . Creagh Osborne, WILKIE Meridian, unidentified German military compass, GKS etc. Military as its official compass manufacturer.
How do you draw a lensatic compass? 0 ) out of 5 stars 2 ratings, based on 2 reviews Current lensatic compass technical manual Price . Center Hold Technique. 58CE Rally Compass. Photo from Army Field Manual FM 21-26 Map Reading (March 1956). NOTE: Even the best lensatic compasses cannot compete with the high precision of a prismatic system (2 deg. The instructions for use that follow will be based on the lensatic model, since it is the more durable of the two.
one half of one deg. Basic lensatic compass directions for younger children, not quite ready to use all the features. Name Email Required. During the war, these compasses were manufactured by Superior Magneto Corp. It teaches you the basics you need to become an efficient land navigator. B170249 Lensatic Compass 3 Basic Officer Course Lensatic Compass Learning Objectives (Continued) Enabling Learning Objectives TBS-PAT-1002k Given a lensatic compass, a surveyed point with a level platform, an azimuth marker, and a surveyed known direction, inspect the lensatic compass, to determine serviceability. What is the lensatic compass?
Battle tested through rigorous shock, water, sand proof, and functional from -50o F to +150o F. This chart summarizes some of the particulars of that history. The Corps of Engineers Lensatic Compass was the most common style in use during World War II, particularly later in the war as the other models were phased out. Y), with the "Corps of Engineers/US Army" markings.
The rear lens flips out when the compass is open, and is used to read the dial. Appendix II contains a basic issue. 9077 Lensatic Compass. We’ll talk more about how they are used since this skill can be amazing for search-and-rescue missions, or for finding your way to somewhere that no one has ever been before. These compasses are not artillery compasses but are used in a very similar fashion. What is lensatic maintenance? Army Corps of Engineers was responsible for compass procurement so most models had "Corps of Engineers" stamped on the case. Open the cover of the A compass is a floating magnetic needle that always points toward a magnetic of Engineers, the engineer compass is also called a lensatic compass.
The table below lists the important parts of the compass and their functions. The lensatic compass is comprised of different parts compared to a baseplate compass. turn the map and the compass together until the n arrow. From the 1950&39;s into the 21st Century, the Lensatic Compass was procured in large numbers for the U.
TruArc 8010 Luminous Manual. During that period a number of manufacturers were contracted to build the units and small variations in design were made. the n arrow of the lensatic compass will point 11 degrees west of true north. military ground forces, and other related uses. Usually, a diagram called a compass rose shows the directions north, south, east, and west on the compass face as abbreviated initials. Operator&39;s Manual For SRU-21/P ARMY SURVIVAL VEST (NSNLarge) (NSNSmall) REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual.
The image immediately below from Army Field Manual FM 21-26 Map Reading (March 1956) illustrates the compass and its parts: Compass, Lensatic M-1950. Both of these should have been replaced in miliary inventory with NSN. North arrow of the lensatic compass will point 11 degrees West of True North. · Lensagic ship’s compass has a rotating graduated disc, like the lensatic compass, and the fixed index is called the lubber’s line. The Olive-Drab page "U. Can you work a lensatic compass? Both styles rose in prominence during World War II, with the lensatic model becoming U. There are many fine websites that have additional information on lensatic compass technical manual thistopic, too many to list here and too many to keep up with as they come and go.
Equips military, law enforcement and commercial markets around the world. · Lensatic Compass. Other lensatic compasses feature a sometimes adjustable lens on the case side (e. Comments Required. The compass was issued to officers, squad leaders and specialist troops only, although most troops received training in compass use for land navigation.
Review Subject Required. However, the basic concepts involved in navigation by compass. Military’s official compass manufacturer, Cammenga’s Tritium Lensatic Compasses have proven themselves repeatedly in almost every kind of environment and situation. I cannot find the origin of the word “compass” as applied to the magnetic compass.
Appendix I contains a list of current references, including supply and technical manuals, forms, and other available pub-lications applicable to compass M2. Quite to the contrary, with a little bit of knowledge of the basic functions, anyone can work a lensatic like a pro. Use this Google web search form to get an up to date report of what&39;s out there. Resources and supplies are nearly always high in demand and short in supply. Maintenance and Care The lensatic compass is built to detailed specifications developed to increase its serviceable life. In this video I show what a Lensatic Compass is used for and how to use it. Like all magnetic compasses, the needle aligns itself with the local magnetic field and is attracted by nearby objects containing iron or electric circuits. According to United States Army Corps of Engineers, the engineer compass is also called a lensatic compass.
Instructor Kit - Instructor&39;s Study Guide. Products are built to demanding military specifications. The first of these, which sits at the top of the folded compass, is the sight wire.
They’ve been to battlefields all over the world. Instructor Kit - Student Workbook. Lensatic Compass. companies licensed to handle Tritium. Compass-to-Cheek Technique. · However, by the late 1940s the Army decided it was time for a whole new design. 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.
The lensatic compass features three main parts. info℠ Home grown tomatoes, home grown tomatoes. Place the fully opened lensatic compass on the map with the scale edge running through the terrain feature and with the compass reading the same as the azimuth sighted. TECHNICAL MANUAL HEADQUARTERS DEPARTMENT OF THE ARMY WASHINGTON, D. 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 navigate.
From FM 21-26 Map Reading, dated March 1956. As the name implies, the lensatic compass employs a lens in the rear sight that allows precise readings of the dial. For good results, try entering this: lensatic compass army or military. lensatic compass technical manual · A lensatic compass is often referred to as a military compass, and is typically used by the U. the compass cover should be pointing toward the top of the map. 25 List Price . · A lensatic compass traditionally unfolds into three components. .
My Account; Wish Lists. Unplugged ActiveKids. . Next, rotate the entire thing (map and compass) until your compass is telling you that it&39;s pointing north. Part Function Thumb loop • Serves as a retaining device to secure the compass in the closed position • Also used as a wire loop for your thumb when you hold the compass. like with the Barker M-88). If you find any mistakes, or if you know of a way to improve the procedures, please.
This manual contains instructions for operation, organizational, field, and depot maintenance of compass. · 1 Open the compass so that the cover is fully extended. At first glance, the lensatic compass can seem a bit daunting.
Only one of a few U. Using a Lensatic Compass. At that time, the U. Lay the compass down on the map so its long side is parallel with the north/south axis of the map.
Soldier demonstrating taking an azimuth reading with the M-1950 Lensatic Compass. If it is tilted only a few degrees off level, significant azimuth errors are introduced. Army standard issue during that time and remaining so today. I generally line it up with a north/south gridline. With basics like compass parts and how to hold your lensatic compass, this is a very easy step by step guide.
Theme Song By: Richard Gavril · A detailed manual on using a Lensatic Compass can be found here for you to download and study with the help of the website, Survival Primer. The readings by two users can differ significantly and errors in transcribing the reading are easy to make. How to shoot an azimuth for fun and profit: Get the ultimate direction finder, a lensatic compass. B18 Lensatic Compass 4 Basic Officer Course Lensatic Compass • Components. Place the fully opened compass on the map with the scale edge alongside a North/South meridian (longitudinal line, grid line). Orient the map to the terrain.
· A typical lensatic compass is shown at the right from FM Here, they agree, so there is no deviation and the measurements have been accurately taken. Unfortunately this compass design was not moisture-proof or waterproof, leading to problems in the field in Vietnam. This lines up with an index marker on the compass face. 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. Welcome to RuralSurvival.
It has a 2-1/8" dia face marked in 5-degree increments, a 1/4" dia sight lens, 9/16" dia bubble level, and a 1-1/2" sight with crosshairs. The engineer lensatic compass is a precision instrument useful in measuring directions to objects and for land navigation. Seven Tritium Micro Lights allow for navigation in low-light conditions, without the need for a flashlight or any other light source. Page 1 THE OFFICIAL U. US Army, Technical Manual, TM, COMPASS, MAGNETIC, UNMOUNTED: M2,, 1985 Scope a. Take your lensatic compass and open it up all the way so it is one flat line. Adherence to very simple maintenance procedures will significantly increase the life of the lensatic compass. The base forms the body of the compass and holds the needle, dial and rotating scales.
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