I went with a Kiwi prop about three years ago. It is a three blade, so you get the propulsion advantage of a three blade and it feathers to reduce drag. At the time it cost me about 1500. For me I still have a long ways to go with getting the sails properly trimmed and this has more of an effect on speed - for me although I like to imagine that the feathering prop is helping....
Bruce 35-3 Sent from my iPhone > On Jan 13, 2014, at 9:19 PM, sam.c.sal...@gmail.com wrote: > > I've just ordered a 15x9R Flexofold from Denmark. > I've currently got a 3 blade fixed prop and if I can get another 1/2 to 1 > knot it will be worth the money! > > sam :-) > C&C 26 Liquorice > Ghost Lake Alberta > > From: Rick Brass > Sent: Monday, January 13, 2014 9:29 PM > To: cnc-list@cnc-list.com > Reply To: cnc-list@cnc-list.com > Subject: Re: Stus-List Prop Question > > The folding prop will get you to hull speed and push you through chop if it > is the proper pitch, which is all you can expect the 3 blade prop to do. > Reverse, as you already know, can be a learning experience with the Martec. > It will work fine at higher RPM, but tends to suck for backing up at low or > moderate engine speeds unless you use proper technique. The three blade will > back better at low to moderate speed. > > I had a fixed prop on my 38 for a couple of years. I figured out that I lost > ¼ to ½ knot of speed vs. the folding prop in all but heavy air sailing. I > went back to a Martec folder. > > There are other folding props that back up better than the Martec. A geared > prop like a Gori or a Flex-o-fold should work more like a fixed prop in > reverse. Or you could get a feathering prop, if you can part with that much > coin, and you will get excellent sailing characteristics and also excellent > performance in reverse. > > I’m sure others on the list will kick in with their experience. > > Rick Brass > Washington, NC > > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Brian > Morrison > Sent: Monday, January 13, 2014 10:45 PM > To: cnc-list@cnc-list.com > Subject: Stus-List Prop Question > > Hello List, > > I have a 1979 C&C 34 with the original 2 blade martec folding prop. While at > the yard today a friend suggested changing the prop to a fixed three blade > for greater propulsion. The previous owner was a racer and I am more of a > cruiser. My friend suggested that the 3 blade drag would be negligible but > power would be much greater. Any thoughts or recommendations on prop > replacement would be appreciated. > > Brian > > Brian C. Morrison > S/V Rekofa, The Blue Whale > 1979 C&C 34 > Baltimore, MD > > > > > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com
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