I am curious about SS props. I have a 13x15 alloy three blader fitted at the moment which is spot on but wondering just what difference, if any, a SS prop might make.
I get 29knts@5500rpm with one to two folk on board fully fueled and 22knts@5000rpm fully loaded with 8 dive cylinders, 4 folk and 4 sets of dive kit on board fully fueled. Boat is just over 550kgs before folk get onboard.
Would I expect any appreciable difference if I fitted a 3 or 4 bladed SS prop and if so roughly how much and would pitch need to change?
I am not too bothered about flat out speed when empty, more interested in fully loaded speed, another knt or two would be nice