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Mariner's Formulae	Quick reference guide
Propeller Slip
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SLIP Slip = 100% - Efficiency Efficiency = observed speed or distance                    engine speed or distance Mean Apparent Slip = distance run by propeller - distance run by ship         per Day                          distance run by propeller Dist. run by propeller in n.m. = pitch [m] x total engine revolution per day                                                                     1852 Disclaimer