Hi Wade Our Frers 33 is very similar to the C&C 33-2. Motor is normally a 2GM20 for the Frers 33 but Persistence has 3GM30F with Kanzaki KM3P also 2.61:1
Two years ago we purchased a Flex-o-Fold 2 blade 16x12R geared propeller to replace the Martec RH16DX14-3 2 blade folding non-geared propeller. The cost was $1205.00 USD at the time and we had a charge of $240CAD for duties and taxes when it arrived. Total cost was just over $2000 CAD. The propeller arrived at my door three days after order was placed. With the Martec we had very good forward speed and thrust but poor reverse until the boat finally got moving in reverse. The Flex-o-Fold is as food or better in fwd and has significantly better reverse .. but still not the same as a fixed prop. Prop walk with the FOF seems less than the Martec as well. Vibration is supposed to be less but I cannot really tell. Flex-o-fold were great to work with and everything came as advertised. The propeller is a nice upgrade and that bit extra reverse thrust is nice to have! The only negative with the propeller is the cost since the boat was working well previously with the Martec so it was not really a necessary spend. When the bottom is freshly cleaned we can motor at as high as 7.3 knots and cruise comfortably at 6.6-6.8 knots at 80% throttle. I do not see any need for a three blade folding prop in our situation as we are never under powered or too little fwd thrust with the 2 blade. I still have the Martec if anyone needs a prop that size Mike Persistence Halifax, NS From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Wade Glew via CnC-List Sent: Tuesday, November 06, 2018 1:44 PM To: cnc-list@cnc-list.com Cc: Wade Glew Subject: Stus-List Folding Propeller May I please request some input and advice from list members re purchasing a folding propeller? I have a Yanmar 20GM20F with constant rating of 16 HP at 3400 RPM Gear Ratio is 2, 62 current prop is Michegan sailor fixed blade 16 RH 10 On Contacting FlexoFold they have recommended: " a 2-blade 16X11R propeller for your C&C 33 MK II sailboat." GORI, on the other hand, have recommended: " 15" x 12 x 2-blade RH – or 15" x 12 x 3-blade RH (at twice the cost) the cost of the FlexoFold and Gori 2 blade folding props are approximately the same after shipping etc (about $1200 USD) I don't know if I need a 3 blade prop and the cost is substantially higher. I would appreciate any opinions Wade Oh Boy 33 MK II
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