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- Q135 - Navigation Problems: Oceans
42. At 0600 zone time, on 16 March your DR position is LAT 20°10.0'N, LONG 81°30.0'W. You are steering course 300°T. The speed over the ground is 10 knots. You observed 3 morning sun lines. Determine the latitude and longitude of your 1130 running fix. Zone Time GHA Observed Declination Altitude 0800 12°50.0' 19°00.0' S 01°38.8' 1030 50°20.4' 51°42.0' S 01°36.5' 1130 65°20.5' 62°11.5' S 01°35.5'
The 1130 running fix is determined by advancing earlier lines of position along the DR track and intersecting them with the 1130 line of position, resulting in a position of LAT 2039.0'N, LONG 8222.9'W.
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