THE 4-D PLOTTER

Irving I. Gringorten

Peer Reviewed

Abstract: The plotter described in this paper is a flat transparent piece of plastic material or plexiglass with lines, graphs, compass rose and slits designed to speed up long-range flight plan unning without loss of accuracy. Figure 1 of this paper is a photographic model which can be trimmed to the periphery: two straight sides Servand a French curve. There are eight slits that slits that should be cut out, as outlined. This plotter is intended to replace more elaborate devices known as computers for flight planning (e.g., E6D computer). Indeed the prototypes of the 4-D plotter have been known as "computers." (Refs. 1, 2 and 3).
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 5, Number 5
Pages: 231 - 237
Cite this article: Gringorten, Irving I., "THE 4-D PLOTTER", NAVIGATION, Journal of The Institute of Navigation, Vol. 5, No. 5, 1957, pp. 231-237.
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