Outboard props
Submitted by Mark M on Fri, 2016-02-19 16:58
Hi All,
I currently have a 4 blade solas prop on a 225 Yamaha four stroke outboard pushing a Haines 685 Patriot, if I was to change this back to a 3 blade what would it do with regards to fuel consumption, top end speed and speed out of the hole.
Cheers
Mark
sunshine
Posts: 2555
Date Joined: 03/03/09
Running a three blade on identical engine
Economy is 0.9 litres per nm on. 6.8 seaquest
Vinesh87
Posts: 2751
Date Joined: 02/04/11
No really sure about the
No really sure about the props, but if you look on the Yamaha website they have a prop calculator which gives you a few options depnds on your WOT and speed and stuff.
Keen to hear how you go, thinking about different props for mine too.
I get 1.5l/nm 300 Yamaha on a 7.5m boat! Whats your economy now ?
Rob H
Posts: 5745
Date Joined: 18/01/12
without referring to specific
without referring to specific props there is probably too many variables to answer.
But generally a 4 blade gives a bit more lift in the stern, so better for a boat that's ass heavy.
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Everyone's just winging it.