[C38] 3 bladed folding prop

[William Knowles]

I have a Kiwi three blade feathering. I could really feel the difference
from the three blade michigan in both speed and turbulence across the
rudder. I am sure the folding prop has less resistance but not sure if it
worth the extra cost.

Bill Flying Goose


On Tue, May 28, 2013 at 12:28 AM, Steve Smolinske <
SSmolinske at rainierrubber.com> wrote:

> Steve, ****
>
> ** **
>
> I have a three bladed max prop I switch out for cruising, we race with a
> two bladed martec.  The max prop is amazing there is no vibration, lots of
> power and she backs out straight.  I love that prop.  It is feathering, but
> because you have three fins even when feathered you will get some drag
> especially as the boat pitches, two of the blades will provide resistance
> through the water as the stern goes up and down, still better than a fixed
> prop and, If that bothers you Max prop also makes a two blade version.****
>
> ** **
>
> Steve****
>
> #312 Peregrine****
>
> Seattle****
>
> ** **
>
> *From:* listserve-bounces at catalina38.org [mailto:
> listserve-bounces at catalina38.org] *On Behalf Of *S Orton
> *Sent:* Monday, May 27, 2013 5:23 PM
> *To:* Cat 38
> *Subject:* [C38] 3 bladed folding prop****
>
> ** **
>
> Has anybody tried a 3 bladed folding prop?  Slipstream makes a geared 3
> bladed folding prop which should have less drag and be more efficient than
> a feathering prop.  I've got to go to a three blades to reduce vibration
> and to make my cutlass bearings last longer-now a geared folding prop is
> installed.  I typically replace the cutlass every time I haul the boat.
>  Phil Gay tells me he hasn't replaced his cutlass since replacing his prop
> with a Max Prop and that was over ten years ago.  What kind of life are the
> members experiencing?  In the past, I removed the shaft took to a machine
> shop to inspect for trueness- the machinist did face the flange while
> mounted on the shaft less than .002", which didn't help.  I have also
> replaced engine mounts.  All alignment procedures were done on the hard.
>  The only thing left is to do is an alignment check in the water.  Or again
> maybe its the 2 bladed prop! ****
>
> Comments please,  Steve O (Santa Susanna,304)****
>
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>


-- 
W H Knowles
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