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- Q135 - Navigation Problems: Oceans
491. The pitch of the propeller on your vessel is 19'09″. You estimate the slip at -3%. If you averaged 82 RPM for the day's run, how many miles did you steam?
Choice D is correct; the calculation of propeller advance, considering pitch, negative slip, and RPM over a 24-hour period, yields a distance of approximately 395.3 nautical miles.
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