![]() ![]() String not included, shown just for illustrative purposes. This is why the design of the UTM Grid Reader is a circle instead of a square.Ĭircular compass rose around the exterior 360 degrees.ĭurable and commercially produced for us by one of the leading protractor makers in the USA. My teammate from Max Ordinate Academy (Marine Scout Sniper) runs a string in a loop tied around the UTM Grid Reader which makes it much more effective. When the Military Map protractor is rectangular, it is less consistent to run the string. To do this, we run a string from the center of the UTM Grid Reader to the point on the map, and then check the edge of the tool for the direction we can use on the compass. We will often run 2 maps, a small 1:24000 map for more of an overview, and a 1:12000 map for double the detail, and so having both slot tools on a single UTM Grid Reader or Military Map protractor is a huge benefit.įinally we often use the tool to check or get an azimuth or direction reading. We wanted a 1:12000 grid slot tool, but they are extremely rare to find, and we tried using a corner marking tool, but they are not nearly as easy to use as the slot tools. The slot tools feature a slot along the vertical axis which make marking a point super quick and they are easy to read. We struggled to find the best tool since most UTM Grid Readers we prefer (also called slot tools) use a 1:24000 grid. See the other pictures for more information. ![]() In the main picture (a digital prototype), the pink/red is actually white around the outside edge (in the real life tool), and the slot cut lines are displayed as red lines. The most recognizable map protractor is the one that is in use with the U.S. However we have been running a larger set of maps using a 1:12,000 scale so we can see more detail. The provided maps are 1:24,000 scale on a UTM grid. The main focus of this event is land navigation. Since 2016 Bison Tactical has participated in a 24-48 hour land navigation race called the Sniper Adventure Challenge. This is the Bison Tactical custom UTM Grid Reader. Plotting a grid using the 1:50000 scale romer on the RA Protractor.UTM Grid Reader | Military Map Protractor Read of the inner scale and plot a bearing of 4500 mils back to the trig point.Ĭhoose two points on a map and practice this procedure. To plot a backbearing from the church, turn the protractor to the left with the centre point over the church. What is the Grid Bearing from the Trig Point to the Church? The outer scale is used when plotting bearings East and inner scale for bearings West. Where the line crosses the outer scale it indicates the Grid Bearing from your position (trig point) to your target (church with tower). This military map protractor has scale measurements in both military Mils and the more common degrees. PROTRACTOR CONDITIONS : Given a standard 1 : 50,000 scale military map, two known points plotted on the map, coordinate scale and protractor ( GTA 5-2-3 ). Proper orientation ensures that your readings and calculations align with the map’s grid lines and features. Orienting the military protractor on a map is a critical step in using it for accurate navigation. ![]() Then draw a line or use a plumb line to draw a line from your location (trig point) to your target (church with tower). Step 4: Orienting the Protractor on a Map. All vertical and horizontal lines should be aligned with those on the map, overlay the centre point over your location on the map (trig point). This is the issued protractor, the metres scale romers are on the left side, these are the romers that you should use.Įnsure the map is on a flat surface, align the base line with the vertical lines on the map, the 0 should be in line with Grid North. The outer edge of the protractor has 2 scales for measuring mils. Protractors feature 3 cut out windows for measuring on 1:25,000, 1:50,000 and 1:100,000 scale maps.
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