Plotting a position: In dead reckoning a line from the point of departure to the objective is ruled on the map. The patrol follows the general direction of this line but deviates from time to time as required by the terrain and other considerations. The navigator records the times, sun-compass bearings, and the distance travelled on each bearing by speedometer reading, and plots this data on the map at each halt. The final point on the map arrived at by this method is the ‘dead reckoning position’