View Full Version : Prop question...


Ambitious
10-03-2009, 11:51 AM
Dear all,

We have just finished testing of our 32 feet mahogany boat.

Lwl=7.7 m
Bwl=2.5 m
D=4.4 t

Engines&propulsion:
2 x yanmar 6byz 260hp@4000 rpm
bravo one diesel X. ratio 1.5
prop: mirage plus 14 3/4" X 21 "

Top speed is 42 kn at 4080 rpm with three persons on board.

I think props might have slightly higher pitch. So we can match 4000 rpm.
What do you think about 4 or 5 blade props maybe?

thanks

View Full Version : Prop question...