Hi Dave- The boat makes about 6.5 knots in normal conditions with the throttle fully open (Universal M4-30). Not sure I trust the tachometer given other discussions on the listserv, so I don’t look at it too often. I will try to remember to take a look next time and report back. Dave
On Aug 3, 2015, at 12:58 PM, Dr. David Montgomery via CnC-List <cnc-list@cnc-list.com> wrote: > > 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 > Dr. David Knecht Professor of Molecular and Cell Biology Core Microscopy Facility Director University of Connecticut 91 N. Eagleville Rd. Storrs, CT 06269 860-486-2200
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