Hi Josh,
The boat came with a 2 year oldFlexofold prop and it became clear
pretty quickly the pitch was wrong. I could only get 2600 RPM at full
throttle with lots of black smoke. Columbus day weekend I was plowing
through 6-8 foot seas with 40 knots on the nose and could make no more than
1.5 to 2 kts., as the prop was cavitating badly. I talked to Flexofold
(in Denmark) and they confirmed the prop was the wrong pitch. Apparently,
the Yanmar 3HM35F comes with two different transmission ratios (2.83 and
2.14). Mine is the 2.14, but the 14" pitch is intended for the 2.83 ratio.
I had a Max-Prop on my previous boat (35 MK II) and liked it very
much, but in the review I just read, the Flexofold out performs it in
almost every category except reverse thrust, where the Max-Prop is much
better. Forward thrust, drag and prop walk are better with the Flexofold.
Of course it's still a lot cheaper to replace the blades on the Flexofold
rather than buying a 16" Max-Prop. Notice I said cheaper, not cheap.
Gary
S/V Kaylarah
'90 C&C 37+
East Grteenwich, RI, USA
~~~~~~~_/)~~~~~~
On Wed, Oct 26, 2016 at 10:58 AM, Josh Muckley via CnC-List <
[email protected]> wrote:
> First, what makes you think that you have the wrong prop? RPM too high?
> Black smoke at full throttle?
>
> I have a Max-Prop and while not a "perfect prop" in all regards I do like
> that I can adjust the pitch. It is just as powerful and efficient in
> forward as in reverse. And the engineering is top notch. PYI has quality
> customer service too. Here's a link to one that might still be for sale.
>
> https://m.facebook.com/groups/575680375901638?view=
> permalink&id=840032242799782
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
>
> On Oct 26, 2016 7:41 AM, "Gary Russell via CnC-List" <
> [email protected]> wrote:
>
> I have determined that the Flexofold prop on my (new to me) boat has the
> wrong pitch. Discussions with Flexofold determined that the proper prop
> would be a 16" dia with an 11" pitch. What I have is a 14" pitch.
> Flexofold say I need to replace the blades for $1K. Are their any other
> options? Can a prop shop do anything? If so, can anyone recommend a good
> one?
>
> Gary
> S/V Kaylarah
> '90 C&C 37+
> East Greenwich, RI, USA
> ~~~~~~~_/)~~~~~~
>
>
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> _______________________________________________
>
> This list is supported by the generous donations of our members. If you
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_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
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