![]() ![]() computer a complex circular slide rule, itself sliding on a spherical projection. Connect to a high accuracy GPS or GNSS receiver, stream DGPS or RTK correction. The rotating 10 MILES 11 COMPUTER, AIR NAVIGATION, DEAD RECKONING 1:40 9,0 10. Royal Air Force Dead Reckoning Computer & Navigation Flight Plotter. ![]() Ground speed - the speed of the aircraft as measured along the Track. THE DEAD RECKONING COMPUTER NOTE : To attain maximum benefit from this. RAAF Mk I Aerial Dead Reckoning Computer is used in aerial navigation should consist in a flat metal (aluminium) plate, having a radial chart printed on it. Track - the actual direction (course) over the ground as affected by the wind direction and speed.ĭrift angle is the angle between the intended Course and the true course (Track).ĭrift may be Starboard drift (to the right) or Port drift (to the left).Īirspeed - the speed of the aeroplane through the air and is measured along the Course. MIL - C - 19729 ( Aer ) Computer, air navigation, cruise control 6605 MIL - C - 6854A A Computer, air navigation, dead reckoning, type MB - 4 Q6605. Computer measures 5.5 inches wide and 12 inches long in its case. Included with the computer is a 14 inch Plotter Type PLU-1/C, and a Dietzgen Divider in an aluminum tube, for measuring and repeating distances on a map. To do this the estimated position can be corrected by comparing it with true position as determined, for example through celestial position determination using a celestial sextant.Ĭourse - the direction in which the aeroplane is heading relative to true north or magnetic north Here is an Air Navigation Computer as used by US Air Force navigators from 1940-1980 for dead reckoning navigation. However once the position has become uncertain, e.g., through wind induced drift, the position must be corrected. ![]() Dead reckoning is very useful under conditions of limited visibility, when flying over territory with limited landmarks, e.g., over water, and when the sky is overcast. Notes Dead Reckoning is a method for determining the position of an aircraft or ship by keeping track of the direction and speed of travel from a known starting position. ![]()
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