MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 70
of Variation and Deviation. Example: Variation, 4° East +4° Deviation, 3° West —3° Compass Error -|-Io (or 1° East) PROBLEM V: To find the Compass Heading cor-responding to a True Heading of 60°. Variation 8°West. Deviation 3° East. SOLUTION:True H. Var. Mag. H. Dev. Com H. 60° 8° W. 68° 3° E. 65^… … Fig. 10. Magnetic Compass. THE COMPASS The function of the Magnetic Compass is to indicatethe direction of any Magnetic Meridian, and also tomeasure bearings on distant objects. A compass will continue to peiiorm satisfactorily ina steady chmb or glide, provided that neither exceedsmore than 20°.…
Airplanes
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