MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 84
to one nautical mile, the Latitude scale is usedfor measuring distance. ProjectionThe principle on which the Mercators Projection isbased is CYLINDRICAL. Its approximate form may bevisualized by imagining a light at the centre of a globeto cast a shadow of the meridians and parallels on acylinder… … E Q U A T o R fig. 34A. Mercator Projection. Fig. 14B. Mcreator Development. The shadows of the Meridians on the cylinder willbe straight and parallel lines to infinity, whereas onthe sphere they converge to meet in a point at thePoles. It is, in other words, as though the Meridianswere stretched…
Airplanes
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