THE INFLUENCE OF THE EARTH'S ROTATION ON BUBBLE SEXTANT READINGS

J. J. Green

Abstract: It has been known for some time that the earth’s rotation affects the bubble of the bubble sextant used in aircraft, necessitating the application of a correction that increases in magnitude with increase in latitude and increase in ground speed. Tables listing the correction as a function of ground speed and latitude are given in the Air Almanac and in such texts as Air Navigation by P.V. H. Weems. These tables would indicate that the correction to be applied is independent of the course of the aircraft.
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 1, Number 5
Pages: 111 - 112
Cite this article: Green, J. J., "THE INFLUENCE OF THE EARTH'S ROTATION ON BUBBLE SEXTANT READINGS", NAVIGATION, Journal of The Institute of Navigation, Vol. 1, No. 5, 1947, pp. 111-112.
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