Expanding on Curtis' post, I have a geared Flexofold (just been delivered - 3 days Denmark to Calgary - I’m impressed) I assume, as the blades are geared together, that blade position doesn't matter - yes? 

sam :-)
From: Curtis
Sent: Wednesday, January 15, 2014 1:36 PM
To: cnc-list@cnc-list.com
Reply To: cnc-list@cnc-list.com
Subject: Re: Stus-List Prop Size C&C 29-2

Thanks that helps. Good Idea. I plan to dive this weekend to put the Zink on the shaft I will Market then. 
Thanks again.


On Wed, Jan 15, 2014 at 3:27 PM, Edd Schillay <e...@schillay.com> wrote:
Curtis,

I put it in reverse and it closes right up. For racing, I have the shaft marked for when the blades are horizontal, so when I put the boat in gear they fold best. Otherwise, when vertical, the lower one my drop (gravity is a bitch). 


All the best,

Edd


Edd M. Schillay
Starship Enterprise
C&C 37+ | Sail No: NCC-1701-B
City Island, NY 

On Jan 15, 2014, at 3:22 PM, Curtis <cpt.b...@gmail.com> wrote:

When sailing how do I get the prop in the correct position or collapsed. Do I put the transmission in rev? I have a 2 blad mertec folder prop and a 2gm20F Yanmay and a Kenzaki KM2P transmission?



On Wed, Jan 15, 2014 at 12:48 PM, Jerome Tauber <jrtau...@aol.com> wrote:
I had a 29-2 for 10 years.  It is actually a 28.5 foot boat with a 13 hp engine.   I used a martec folding prop and it worked fine.  If I were going to a new prop kiwi props are lighter, less drag and will outperform the heavy brass bronze props made by Gori, Flexofold, etc.   They are also more economical and adjustable.  A friend put one on his Sweden 38 and he raves about it.   Jerry. C&C 27-v.   

Sent from my iPhone

On Jan 15, 2014, at 12:32 PM, "Rick Brass" <rickbr...@earthlink.net> wrote:

I’m a bit surprised at the recommendation from Flex-o-fold. Seems like a lot of prop for a boat that is essentially 30 ft with a 15 HP engine.

 

For perspective, a friend’s J/30 with an 18HP Yanmar has a 12x9 Martec. The Gori for my C&C 38 with a 36 HP Universal @3000 RPM is a 16x10, and the Martec recommendation was 16x10 ½.

 

Suggest you contact Flex=o=fold and discuss the recommendation with them. They may have made a mistake in one of the inputs for the recommendation. For example, the reduction gear: A prop for a 2:1 reduction gear would have more pitch than one for a 1.5:1 reduction. IIRC there are more than 1 reduction gears available on the Yanmar engines.

 

I would also contact Campbell, MaxProp, and Gori to see what they recommend.

 

Rick Brass

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Martin Kane
Sent: Wednesday, January 15, 2014 10:01 AM
To: cnc-list@cnc-list.com
Subject: Stus-List Prop Size C&C 29-2

 

I’d like to tap into the collective experience of C&C 29-2 and/or Yanmar 2GM (15hp @3600) owners.

 

My 29-2 , acquired 3 years ago, had a 15x9 3 blade fixed prop installed and 15x10 2 blade Gori spare. This was my first diesel engine and initially I was quite pleased when I could reach 5knts at about 1800 +/- rpm and would top out around 2200 rpm. After learning more about diesels I realized the boat was overpropped. The next season I installed the 15x10 Gori and the overpropping is worse – black smoke starting around 2100rpm and reduced ability to push thru wind/waves. The Yanmar tach shows 3600 max rpm in neutral  and also matches the reading on a laser tach at 2000rpm.

 

I’m looking for a new prop and am considering a Campbell Sailor, 2 blade Flexofold, or 2 blade Max Prop.  On the basis of the current performance and C&C owner’s manual I was thinking that a correctly sized 2 blade prop would be 14” diameter and 8 or 9” pitch.

I submitted a sizing/quote request to Flexofold and they recommended a 15x11 – which was not what I was expecting.

 

I’d be grateful to hear what type/size props other listers have on their 29-2s or Yanmar 2GM-15s and how satisfied they are.

 

Martin

C&C 29-2 Recalculating

Mimico Cruising Club

 

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This List is provided by the C&C Photo Album
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_______________________________________________
This List is provided by the C&C Photo Album
http://www.cncphotoalbum.com
CnC-List@cnc-list.com




--
At sea, I learned how little a person needs, not how much.
-  Robin Lee Graham



_______________________________________________
This List is provided by the C&C Photo Album
http://www.cncphotoalbum.com
CnC-List@cnc-list.com
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