by shibbs » 23 Oct 2019, 21:12
Very interesting. I would be even more interested to see how it compares to multi blade props, ie 4 & 5 blades.
I run a high 5 and I get on the plane easily by 2100rpm, at about 15knots. It really shouldn’t work with my type of boat I don’t think but I’ve tried various different 3 blade props and they simply don’t compare. And I dare say mine is probably quite a bit heavier than the boat it was tested on.
That said, the 5 blade prop wouldn’t compare at matching efficiency and speed all the way through the Rev range. But I don’t go anywhere at any more than about 25 kts. The figures on that were very good throughout.
I suppose the big question is, how much will it cost..?
As a long term investment, it may we’ll be worth it just for the fuel efficiency.
Stu
Princess 286 Riviera
Twin Volvo Penta AD41’s