Does anyone know of a good link for propellor tips or theory? I have an 18' '99 Mariah 182 runabout bowrider with a 4.3 Merc and a 19 pitch prop. The boat runs at about 3300 rpm at 30 MPH which seems to be a tad high. Max RPM is around 4700 RPM or so which is at the upper end of the specs. I'm...
