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- Q135 - Navigation Problems: Oceans
641. Your vessel's propeller has a pitch of 22'06″. From 0530, 19 March, to 1930, 20 March, the average RPM was 82. The distance run by observation was 721.5 miles. What was the slip?
The slip is negative because the observed distance (721.5 nautical miles) exceeds the theoretical distance (approximately 692.3 nautical miles), indicating a slip of -4%.
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