It's 33% thicker than the standard military issue version, so it's less likely to be bent or broken when you need to use it. The tool is printed on plastic stock about the thickness and stiffness of a credit card, with a protective coating.Our coordinate scales offer significant benefits over the standard issue GTA 5-2-12: The inner protractor is marked in degrees and the outer protractor is in mils. The overall dimensions of the tool have been reduced so that it is the size of a music CD, easily fitting into a pocket or any slot where you could store a CD. The 1:100,000 scale now spans 5km grid lines, making it much more usable. By using a slot on one side of the tool for access to the map, the tool can be more compact than the traditional GTA tool. The other aspects of the tool are an improved version of the Graphic Training Aid 5-2-12 Coordinate Scale and Protractor used by United States and NATO military forces around the world. There is a set of rings for 1:25,000 scale maps and another for 1:50,000 scale maps. ![]() There are concentric range rings for standing posture REDs for 60mm, 81mm, 120mm mortars and 105mm and 155mm HE Howitzer rounds. This is called echeloning of fires and a more detailed explanation can be found in FM 3-90.2. This allows fire supporters and ground commanders to plan fires (the term used for indirect systems like mortars, artillery, missiles and ordinance from aircraft) on the objective and ensure consistent fires on the enemy as friendly forces move on the battlefield. Placing the crosshairs on a target allows maneuver units to see how close they can get to where rounds are impacting and still be safe. This tool has concentric range rings for danger areas of mortar and artillery systems. ![]() The RED-combat (or MSD-training) is defined as the minimum distance friendly troops can approach the effects of friendly fires without suffering appreciable casualties of 0.1% or higher probability of incapacitation. ![]() Risk Estimate Distances (REDs) take into account the bursting radius of particular munitions and the characteristics of the delivery system and associates this combination with a percentage for the probability of incapacitation of soldiers at a given range. Neither the red lines, colored background, nor map image are printed on the actual tool. Note: Product edges and interior cutouts are shown with a thin red line.
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