Thanks Steve, I looked up our engine and reduction gear and got the following:
3GM30(F) 2.61:1 17 X 12 I then checked the MaxProp manual and read 12 (11.6 actual) degree pitch requires a blade angle setting of 20 degrees which matches what PYI recommended. Thanks, Chuck > On 12/18/2020 12:31 PM [email protected] wrote: > > > > Check out > marinedieseldirect.com/yanmar/shopping/parts_references/prop.php. My 3HM > needs a 17” x 11 pitch according to the chart if 2 bladed. > > > > Steve deForest > > C&C 37 Denali > > > > From: CHARLES SCHEAFFER <[email protected]> > Sent: December 17, 2020 4:56 PM > To: CNC boat owners, cnc-list <[email protected]> > Subject: Stus-List Best Pitch for 2 blade 17" Max Prop 36ft C&C > > > > Does anyone with a MaxProp know their pitch setting? We're trying to set > a two blade 17" MaxProp on a 36 ft sailboat with Yanmar 3GM30F engine w 2.6:1 > reduction? > > > > Thanks, > > Chuck Scheaffer Resolute 1989 C&C 34R Pasadena Md > > > > > > ---------- Original Message ---------- > > > > From: Blair Clark <[email protected] > > mailto:[email protected] > > > > > To: [email protected] mailto:[email protected] > > > > Date: 12/12/2020 2:16 PM > > > > Subject: deciding on proper pitch for 2 blade 17 inch Max Prop > > > > > > > > > > > > Hello Group, > > > > > > > > We have a 1990 C&C 34 +. > > > > > > > > Coincidence is powered by a 3GM30F Yanmar with a 1 1/8 shaft and a > > Kanzaki, KM3P Mechanical gearbox. Serial no(s): 17745. Gear ratio: 2.61:1 > > > > > > > > > > > > I recently purchased a 2 Blade 17 inch Max Prop. It comes with a 22 > > degree pitch. > > > > > > > > When I was communicating with PYI they had recommended a 2 Blade 17 > > inch 20 degree pitch if I went with their new propeller. > > > > > > > > Does anyone have any thoughts/experience regarding 22 degree pitch > > vs 20 degree? > > > > > > > > Thank you, > > > > > > > > Blair > > > > Coincidence > > > > 1990 C&C 34 +(902) 233-1684 > > > > > Thanks to all of the subscribers that contributed to the list to > > help with the costs involved. If you want to show your support to the list > > - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks > > - Stu >
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
