By The United States Army
With a view to be a reliable soldier or comprehend squaddies, you want to get pleasure from terrain. not only examine a panorama and say "gosh that is pretty", yet comprehend the results of ridgelines, intervisibility strains, the impression of terrain on circulate, suitability of terrain for various functions, strains of sight, and so on and are aware of it in a truly visceral method, not only as educational topics. And to appreciate land navigation, map analyzing is a sine qua non.
Land navigation is an important step in realizing terrain. utilizing compass, maps, protractors, pencils, and the land itself to determine the place you're, the place you must be, and the way to get there (or the place you don't need to be and the way to prevent it), are the elemental instruments and initiatives of land navigation, and the strategies and highbrow ability required are addressed during this book.
Reading either the textual details on maps and making experience of the visible info on maps is mentioned at size, yet has to be, to supply the neccessary history info for land navigation.
As a lot as this can be a necessary ability for squaddies, this is often an important ability for realizing a soldier's international view. for instance, an anthorpologist learning the military, a member of the Air strength or army operating with the military, or chief in a humanitarian association operating with the military would receive advantages from an invaluable set of abilities that sheds gentle on a soldier's global view.
I am, even if, pressured. i used to be lower than the effect that this version of "Map studying and Land Navigation" used to be limited and never for unlock to the overall public... N. B. All details during this evaluate is usual to past, unrestricted models of this manual.
E.M. Van Court
P.S. international Positioning method (GPS) is addressed. this can be the final element of land nav that any one may still examine, and the pencil, paper, protractor, and compass could be mastered ahead of touched this kind of devices.
Read or Download Army Field Manual FM 3-25.26 (U.S. Army Map Reading and Land Navigation Handbook) PDF
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Additional info for Army Field Manual FM 3-25.26 (U.S. Army Map Reading and Land Navigation Handbook)
1,000-Meter Square. To obtain 1,000-meter squares, each side of the 10,000-meter square is divided into 10 equal parts. This division appears on large-scale maps as the actual grid lines; they are 1,000 meters apart. On the Columbus map, using coordinates 16SGL0182, the easting 01 and the northing 82 gives the location of the southwest corner of grid square 0182 or to the nearest 1,000 meters of a point on the map (Figure 4-21). Figure 4-21. The 1,000-meter grid square. f. 100-Meter Identification.
Since the distance on most maps is marked in meters and the RF is expressed in this unit of measurement in most cases, a brief description of the metric system is needed. In the metric system, the standard unit of measurement is the meter. 1 meter contains 100 centimeters (cm). 100 meters is a regular football field plus 10 meters. 1,000 meters is 1 kilometer (km). 10 kilometers is 10,000 meters. Appendix C contains the conversion tables. c. The situation may arise when a map or sketch has no RF or scale.
The field artillery application of the mil relation formula involves only estimations. It is not accurate enough for survey purposes. However, the subtense method uses precise values with a trigonometric solution. Subtense is based on a principle of visual perspective—the farther away an object, the smaller it appears. (2) The following two procedures are involved in subtense measurement: • Establishing a base of known length. • Measuring the angle of that base by use of the aiming circle. (3) The subtense base may be any desired length.