STATUS OF AREA NAVIGATION

George H. Quinn

Peer Reviewed

Abstract:	Area navigation (RNAV) permits guidance of an aircraft along any desired course when within the coverage of signals from radionavigation stations or within the performance limits of self-contained systems. There are three general operational concepts in area navigation: (1) two-dimensional (2D) involving only horizontal movements, (2) three-dimensional (3D) in which vertical guidance is combined with horizontal, and (3) four-dimensional (4D) in which time of departure and arrival are combined with horizontal and vertical movements for completle aircraft navigation. At present, 2D area navigation is the most used version; however, there has been increased interest in use of vertical descent profiles and of planned times for departures and arrivals.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 30, Number 3
Pages:	221 - 226
Cite this article:	Quinn, George H., "STATUS OF AREA NAVIGATION", NAVIGATION: Journal of The Institute of Navigation, Vol. 30, No. 3, Fall 1983, pp. 221-226.
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