William J. Tull

Peer Reviewed

Abstract: Since December 17, 1903, when man first flew, those who have been actively associated with aviation have at one time or another been concerned with the problem of how to determine ground speed and drift angle of an aircraft without aid from the ground. Through the years a number of devices have been proposed; most of them, however, have fallen by the wayside as time progressed. The optical drift sight has, of course, been widely used for the determination of drift angle. In addition, by double drift techniques it has been possible to determine ground speed with a drift sight. Other self-contained means of obtaining ground speed and/or drift angle have been: a. Norden bombsight b. Radar bombsights c. Bellamy drift techniques d. Pilotage, etc
Published in: NAVIGATION: Journal of the Institute of Navigation, Volume 5, Number 6
Pages: 290 - 298
Cite this article: Tull, William J., "DOPPLER NAVIGATION", NAVIGATION: Journal of The Institute of Navigation, Vol. 5, No. 6, 1957, pp. 290-298.
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