John F. Heard

Peer Reviewed

Abstract: The purpose of this paper is to investigate theoretically the relationship from the point of view of flight time between the singleheading route and the minimum-time route for a flight across a wind-shift line when certain simplifying assumptions are made. The assumptions are : (a) that the isobars are straight lines ; (b) that throughout each wind field the isohars are equally spaced ; and (c) that effects of the earth’s curvature may be neglected.
Published in: NAVIGATION: Journal of the Institute of Navigation, Volume 1, Number 7&8
Pages: 186 - 190
Cite this article: Heard, John F., "MINIMUM-TIME ROUTES IN AIR NAVIGATION", NAVIGATION: Journal of The Institute of Navigation, Vol. 1, No. 7&8, 1947, pp. 186-190.
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