MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 80
d speed out. Air Navigation 75 H Reduced ground speed home.G Actual ground speed out.P Point of no return.Then:D XH 300 X 159 ,„„ ., OTH =-135+159 = 1^2^■™^- - = — = .68 hrs., or 41 min.G 236 The Reciprocal of his Heading is 297° (117°+200—20=297°). He is, therefore, steering 5° to Port of his… … ^.,s ^°M£ ^CTU^\. MS OUT ^^ ^CTU^\. MS o Fig. F. Point of So Reltini CALCULATING RECIPROCALS By RECIPROCAL is meant the reverse, or opposite, of a given direction such as a Heading, Course, Trackor Bearing. e.g. Track 187° Reciprocal 007° The Reciprocal is found by adding or subtracting180—adding…
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