THE NAV-AID: A CALCULATOR FOR NAVIGATION

R. G. Hirsch and R. L. Charlton

Peer Reviewed

Abstract:	A description is given of a proposed versatile navigator’s aid (NAV-AID) made possible by recent advances in calculator technology. The NAV-AID is a portable microdigital computer which, when used with The Nautical Almanac, solves Celestial, Loran and Omega position fixing problems. Additionally, the NAV-AID contains a Deduced Reckoning computer as well as the capability to perform a variety of standard piloting techniques. Subroutines enable the navigator to calculate useful course line parameters and to handle sextant altitude and Omega skywave corrections. Other course and fix-related quantities are accessible through an Auxiliary Data Mode. An Inverse Mode allows Celestial, Loran and Omega data to be predicted, and a Calculator Mode aids in external computations. Anticipated specifications are given.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 21, Number 1
Pages:	46 - 53
Cite this article:	Hirsch, R. G., Charlton, R. L., "THE NAV-AID: A CALCULATOR FOR NAVIGATION", NAVIGATION: Journal of The Institute of Navigation, Vol. 21, No. 1, Spring 1974, pp. 46-53.
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