Jim Can you reach maximum rpm. If not you are over prop'd if you over revyou are under prop'd. I'd start there.
Mike PERSUASION C&C 37 K/CB Long Sault Sent from my Xperia™ tablet ---- Original Message ---- Subject: Stus-List Prop adjustments and cruising speeds Sent: Mar 15, 2014 12:54 PM From: Jim Lynch <lynchja...@comcast.net> To: cnc-list@cnc-list.com Cc: I'm the happy new owner of an old 38-2, and I'm wondering if there is something wrong with my propeller or its pitch. It's a fixed three-blade on a Westerbeke 27 four-cylinder diesel. At 3,000 RPMs it only pushes the boat along at 6.0 knots. Seems like too much exertion for too little return, doesn't it? The engine is strong, the bottom is freshly painted and the boat is not carrying much extra weight. With a hull speed over 7 knots, shouldn't it be chugging along at 6.5 knots or more at 2,500 RPMs? I'd really appreciate any insights from owners of old 38s, as well as those of you who've seen the benefits of prop changes and pitch adjustments for both powering and sailing. Thanks, Jim Lynch Olympia, WA 38-2 --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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