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