![]() Plotting a grid using the 1:50000 scale romer on the RA 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? Details Arrives before Christmas Select delivery location In Stock Qty: Buy Now Ships from MapTools Sold by MapTools Returns Returnable until See more MapTools Improved Military Style MGRS/UTM Coordinate Grid Reader, and Protractor Brand: MapTools 4. 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). Then draw a line or use a plumb line to draw a line from your location (trig point) to your target (church with tower). Plastic military protractor with 3 right angle map coordinators used by Rudolph Sichel, a Jewish refugee from Frankfurt, Germany, who served in the US Army in. 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. Place the protractor over the map and align the northings and eastings with the zero lines and romer grids.Use a line of fine cord from the centre point when plotting bearings, a plumb line.Tape up the yard scale romer to avoid mistakes.Always check the scale of the map and scale of the romer when plotting grids.This will allow you to plot out directions of travel on your next wilderness. The protractor should always be used when plotting grids and bearings. This video discusses how to use a military protractor on a topographical map to get an azimuth (Grid/True North).The British Military only use mils in navigation.
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