Re: what is prop slip?
Water is Dynamic,... Not a Solid,......
Props are listed as a, say 19" pitch,.....
IF the water Didn't Slip,..... You'd move 19" for every Revolution of the Prop.........
Well,..... In Reality,.... You Don't,....... That's Prop Slip........
IF you can get the Prop Slip down to 10%, at WOT,......
You've done a Great Job of propping your Boat.........
If it's Over 10%,........ You've got a Very Inefficent Hull,..... Or you still need somemore Tuning..........