"United States Government Printing Office, Washington: 1940" H.O. No. 211; by Lieut. Arthur A. Ageton; hardbound black cloth boards lettered in yellow with thumb tabs; very good condition with unmarked pages; boards quite good with minor ageing and just a little color mottling (pic).
Description -
In navigation, dead reckoning is the process of calculating current position of some moving object by using a previously determined position, or fix, by using estimations of speed, heading direction and course over elapsed time.
The distinctive features of this method of navigation are:
- The D.R. position of the ship is used for working sights and plotting lines of position;
- There is no interpolation for practical navigation;
- The azimuth is most positively determinate;
- The solution is short, simple, and uniform under all conditions.
DEAD RECKONING ALTITUDE and AZIMUTH TABLE, Third Edition
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