A Huge thank you to Eric for his words of wisdom re this issue ...... My 30x19 prop has suffered dezincification and needs to be replaced.... bottom line seems to be "Pitch Ratios" so when looking for an alternative sized prop I am basing my search on the PR of my olde prop which is .6333( dia.divided by the pitch)......... these prop sizes have a close PRatio.....28x18(.6428)....26x17(.6538).....24x16(.6666)..... Anyone see anything wrong with this logic ????? My current prop performs well (1700 rpm at comfortable hull speed) but is a little Too large for my 1 1/2 inch shaft(IMO)...................
ALSO my current prop is (was) Bronze ....... I have a steel hulled boat with a Monel shaft ............. I'm thinking that I aught to be looking for a steel prop so galvanic corrosion might be minimized ..... comments other than go talk with a good Prop Shop......... john
ALSO my current prop is (was) Bronze ....... I have a steel hulled boat with a Monel shaft ............. I'm thinking that I aught to be looking for a steel prop so galvanic corrosion might be minimized ..... comments other than go talk with a good Prop Shop......... john