Hi Ken, The J-Prop looks interesting and MaxProp now makes more easily adjustable props too. I've had a Max-Prop for the last fifteen years. I installed it to recommended pitch and made an adjustment the following year to reduce pitch and allow proper RPM. No adjustments since.
Is there any reason to change the pitch on a sailboat? Have you ever altered yours? Chuck S > On September 25, 2019 at 2:57 PM Ken Heaton via CnC-List > <cnc-list@cnc-list.com> wrote: > > Hi Bruce, > > Our boat was built with a Universal diesel but was re-powered in 2001 by > a previous Quebec City owner. He wanted more horse power to fight the St. > Lawrence River currents and tides so we now have a Yanmar 3JH2-TBE diesel. > This is a 47 hp. Turbo with a 3 blade feathering "J Prop", prop made in > Italy. Nice combination. Lots of go, plenty of reverse. We're at about > 1100 hrs. on this combination, 400 we put on ourselves over the last 10 years. > > I'd buy another J Prop if I needed one. > > Ken H. > > https://www.betamarinenc.com/j-prop/ > > > https://ca.binnacle.com/p10220/J-Prop-Variable-Pitch-Propeller/product_info.html > > On Wednesday, 25 September 2019, Bruce Whitmore via CnC-List < > cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com > wrote: > > Hello all, > > I know this has been discussed a lot on the board in the past, but > given the recent discussions of over-propping on the part of flex-o-fold, I'd > like to re-ask the question. The reason is that a folding prop is definitely > in my future, as we have a fixed 3 blade prop on the boat now. We also sail > in an area where crab pots are extremely common from October through April. > For that reason alone I am leaning toward a folding prop. I also saw the > rather well put together article in which a test of folding and feather props > was performed - the one touted on flex-o-fold's website. > > By the way, in exchanging emails with flex-o-fold, they are > recommending a 3 blade version, so if vibration is an issue with your two > blade prop, that may not apply to me. > > With all these considerations in mind, when it comes to a > folding/feathering prop, what do you have, and why do you like it? > > Looking forward to your insights, > > Bruce Whitmore > > 1994 C&C37/40+ > > "Astralis" _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray > >
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
