MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 104
each otherat 90 deg. angles, it will be obvious that the Bisector of aQuadrant will not be the same as the Bisector of itsopposite Quadrant. In order to make them so, theAverage Bisector of the Quadrants is used. This isillustrated in Fig. 12. Airhne Captains Route Books contain diagrams ofthe… … A_ rC^ Fig. II. Bracketing a Beam. Fig. 12. Bisectors and Average Bisectors. The Bisectors can be foimd with a compass andprotractor quite simply as follows: With the RangeStation as centre, describe an arc with the compasscutting the two Legs of the Quadrant at A and B (Fig.12). With A and B as…
Airplanes
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