MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 82
the Assumed Track) represents the AClUAL TRACK. There are many methods of obtaining Position Lines—by Transit, by Direction Finding Radio, by observa-tions of Celestial Bodies, etc. It is of the utmost import-ance therefore that the simple methods detailed above,explaining their use in fixing the… … (actuaj, track) yD fig. J«. Hunning Fix by Transferred Position Line. MAPSPROJECTIONS The earth is a sphere and therefore its surfacecannot be represented accurately on a flat plane. Themap makers problem can be readily appreciated bycutting a rubber ball in half—and then attempting toflatten out…
Airplanes
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