Hi I have 3GM30F with Kanzaki KM3P transmission and 1 inch shaft. Boat is Frers 33 so a bit different. Prop that came with the boat was Martec Eliptical RH16DX14P-3. This may be of some use.
The Martec was replaced last Fall with a Flex-o-Fold (better reverse/less vibration). They spec'd the prop as below: "With a 3GM30F, 27/3600 ( gear reduction ratio 1:2,61 ) we would recommend a 2-blade 16x12R or a 3-blade 16x11-3R propeller for your Frers 33." Note that the Martec has 10 years use and is available if anyone is looking Mike Persistence Halifax, NS http://users.eastlink.ca/~mhoyt -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Bunky via CnC-List Sent: Sunday, December 17, 2017 6:18 PM To: cnc-list@cnc-list.com Cc: Bunky Subject: Stus-List PROPELLER PITCH Luna is a 1984 C&C 35 with a Yanmar 3gm30 engine. Does anyone know what the proper propeller pitch should be? She has an aftermarket Maxiprop, and based on engine performance, I believe the pitch may be set too high. Richard Luna, Lake Champlain, VT _______________________________________________ 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