prop question....boat came with two VP 4.3 GXI -DPS (1.95 ratio) and I5 propellers.
Engines doesn't reach max rpm at wot (4600-4800).
Actually they will reach only 3900 at wot ( 29Kn speed).
Anyone expert can suggest which downsize propellers I need... I4 or I3 ? I cannot find the pitch of those props, is it possible to calculate how many rpms will increase the engines ?
thank you
Engines doesn't reach max rpm at wot (4600-4800).
Actually they will reach only 3900 at wot ( 29Kn speed).
Anyone expert can suggest which downsize propellers I need... I4 or I3 ? I cannot find the pitch of those props, is it possible to calculate how many rpms will increase the engines ?
thank you