THANK YOU DAVE!! I will use those numbers as a starting point. Question, with those settings what speed does your boat achieve at around 2700 RPM (I know that we may have different boats but…).
Thanks again! DAve M. On Aug 3, 2015, at 9:55 AM, David Knecht via CnC-List <cnc-list@cnc-list.com> wrote: > I have a 3 blade Max-prop that came with my boat. I can’t her absolutely > sure, but the quote for the prop in the documents I got from the PO > recommended a 15” with pitch of 8.1” at 16° so I presume that is what I have > and it has worked great. Dave > > On Aug 3, 2015, at 2:22 AM, Dr. David Montgomery via CnC-List > <cnc-list@cnc-list.com> wrote: > >> Yes, it is a 3 blade and I run it at the same 2700 rpm’s. Yet to get to 6.5 >> knots or more would take plenty more rpms! If you by chance figure out which >> prop you have (size) and what the pitch is I would love to know. Hopefully >> (dear God!!) PYI can find enough left of mine to repair. >> >> On Aug 2, 2015, at 11:14 PM, David Blair via CnC-List >> <cnc-list@cnc-list.com> wrote: >> >>> I assume your Maxprop is a 3 blade? I have that setup on my 34+ with the >>> same engine. At 2700 rpm we do about 6.5 to 6.75 knots pretty regularly, No >>> issues with vibration, seems to be good power and good reverse power. >>> Sorry I don’t know offhand the pitch or size of the prop. That’s my Maxprop >>> experience, FWIW. Cheers >>> >>> >>> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Dr. >>> David Montgomery via CnC-List >>> Sent: Sunday, August 02, 2015 10:51 PM >>> To: cnc-list@cnc-list.com >>> Cc: Dr. David Montgomery >>> Subject: Re: Stus-List Best prop for 34+ >>> >>> Jim, I just dropped my prop off at PYI to be looked over. Mine was still >>> working but one blade was a nasty orange color and the hub had lost a lot >>> of material… though not enough to not keep it together. How bad was yours >>> that was repairable? >>> >>> >>> Dave M. >>> >>> On Aug 2, 2015, at 10:45 PM, Jim Watts via CnC-List <cnc-list@cnc-list.com> >>> wrote: >>> >>> >>> I had the same deal with my MaxProp, except all my zincs fell off. This was >>> before I was Enlightened to dead-blow hammers and critical painting of >>> zincs. >>> >>> It cost $500 US, but the guys at PYI did a great job of rebuilding the >>> prop. Two weeks and half a boat unit is a cheap option. >>> >>> Jim Watts >>> Paradigm Shift >>> C&C 35 Mk III >>> Victoria, BC >>> >>> On 2 August 2015 at 22:24, Dr. David Montgomery via CnC-List >>> <cnc-list@cnc-list.com> wrote: >>> It appears that the zincs got replaced on my drive shaft but not my >>> Maxprop!!! Needless to say my prop is shot and I am looking at either >>> another of the same or other options. I am hoping that some one out there >>> with the same or similar boat can weigh in on whether the Maxprop or >>> something else is recommended. I have a 3GM30 and ever since I bought this >>> boat several years ago I have felt there was a bit too much vibration and >>> not enough speed. If I take the engine up to about 2700 rpm’s my boat speed >>> is only around 5 to 5 1/4 knots. The prop has always performed adequately >>> but not great. Maybe the pitch etc. is off. Looking also at the Variprop >>> which supposedly has the least drag of all 3 blades and can be adjusted >>> much easier than the Maxprop. Thoughts, ideas, what are you other 34+ >>> owners using? >>> >>> Thanks, >>> >>> Dave M. >>> >>> >>> >>> >>> _______________________________________________ >>> >>> Email address: >>> CnC-List@cnc-list.com >>> To change your list preferences, including unsubscribing -- go to the >>> bottom of page at: >>> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >>> >>> >>> >>> _______________________________________________ >>> >>> Email address: >>> CnC-List@cnc-list.com >>> To change your list preferences, including unsubscribing -- go to the >>> bottom of page at: >>> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >>> >>> >>> _______________________________________________ >>> >>> Email address: >>> CnC-List@cnc-list.com >>> To change your list preferences, including unsubscribing -- go to the >>> bottom of page at: >>> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> _______________________________________________ >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go to the bottom >> of page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> > > Aries > 1990 C&C 34+ > New London, CT > > <pastedGraphic.tiff> > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the bottom > of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >
_______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
