Evinrude Prop trials, anyone help?

[Hightower]

Can anyone lend me a/some LH Stainless props suitable for OMC/Evinrude fitment in the sizes of 17", 19" or 21"

Andy

[Chris]

Andy I thought you had already tried 19 and 21" props?

Why don't you try a 23" I think a 17" would deffo be too small for you RIB

Chris

[Hightower]

Got a 23, however this is gonna be way too big. I checked with BRP about the rev gauge setting and it was OK.

Raised the engine up a hole last Wednesday and got 37 knotts (this was down from the 41 knotts I got by myself, one hole down) the following day when Ian M and I went for a blast with the 21 " prop on, cruising at 30 knotts at 3500rpm was OK, but still not getting the revs I think I need and should be getting. I'll fit the 19" for next Sunday's Christmas get together and see what she's like.

Meen while, if anyones got any suggestions then I'm quite happy to hear their Ideas.