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Performance Steps. 1. Identify the scale of the map. The map scale is the ratio (1:50,000) of the distance on map (1 inch) relative to the distance on the ground (usually 50,000 inches). 2. Convert a straight-line map distance to miles, meters, or yards using the map's bar scale (Figure 071-329-1008-1). Figure 1.
1. Identify the scale of the map. The map scale is the ratio (1:50,000) of the distance on the map (1 inch) compared to the distance on the ground. (usually 50,000 inches). 2. Convert a straight-line map. distance to miles, meters, or yards.
Given a 1:50,000 scale map, a strip of paper with a straight edge, and a pencil. Determine the straight-line distance between two points with no more than 5 percent error and the road (curved line) distance between two points with no more than a 10 percent error.
Identify the graphic bar scale of the map (Figure 071-COM-1008-1). Note : The graphic scale is a ruler printed on the map and is used to convert distances on the map to actual ground distances. The graphic scale is divided into two parts.
Given a standard 1:50,000-scale military map, a strip of paper with a straight edge, and a pencil. 1. Determine the straight-line distance between two points in meters, with no more than 5 percent error.
Determine the grid azimuth from the start point to the finish point, or to the first intermediate point on the map. Convert the grid azimuth taken from the map to a magnetic azimuth. Determine the distance between the start and finish points or between any intermediate points on the map.
