MacDonald, Alexander Forsyth, 1897-1965 · Port Credit, Ont. : Aviation Service Corporation · leaf 82
this we must estimate the Tiack and Ground-speed of the aircraft. We assume the Catalina to bemaking good a Track of 90° True at a speed of 155knots. In 20 minutes the ship would therefore havetravelled 51/2 nautical miles. From any point along A-B, say, E, lay off theASSUMED ROUTE 90°, 51 Vi… … FIX IO.I5 (CEt*TRE Or COCK£!J HH) B F Fig. 29. Fix by Cocked Hat, Three Position Lines. is distinguished by double arrowheads at either end.Where G-H, the Transferred Position Line, intersects C-D, the 10.35 Position Line, is the Fix, or exact locationof the aircraft at 10.35. This is called a…
Airplanes
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