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- Q134 - Navigation Problems: Near Coastal
276. The propeller on a vessel has a diameter of 20.9 feet and a pitch of 19.6 feet. What would be the apparent slip if the vessel cruised 447 miles in a 23 hour day (observed distance) at an average RPM of 108?
The vessel's observed distance of 447 nautical miles is less than the theoretical distance of approximately 480 nautical miles based on the propeller's pitch and RPM, resulting in a slip of 7.00%.
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