Ron, With the Universal M-35 and my two-blade folding prop, I was seeing 7.2 knots at roughly 2300-2500 RPMs.
I’m told that with the new Beta 30 that I’ll see better than that, but I wouldn’t know until I get it in the water and run it for a while. All the best, Edd Edd M. Schillay Starship Enterprise C&C 37+ | Sail No: NCC-1701-B City Island, NY Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/> > > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com > <mailto:cnc-list-boun...@cnc-list.com>] On Behalf Of Ron Ricci via CnC-List > Sent: Wednesday, July 22, 2015 6:07 AM > To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> > Cc: Ron Ricci > Subject: Stus-List C&C 37+ Propeller & Boat Speed > > I’m curious to see what kind of speed everyone gets on their 37/40. It is > interesting to see that some listers get over 7 knots. I’m lucky to get 5 > knots at 2500 rpm. Above that rpm, there is not much of a noticeable change > in speed, just noise. > > Here’s what Patriot has: > > · 3HM35F Yanmar 30 HP > · 2.14 Gear Ratio > · 16” Max-Prop – 2 bladed > · Right Rotation – from > http://www.pyiinc.com/images/pdf/max-prop/PYI_Max-Prop_2_Blade_Instructions.pdf > > <http://www.pyiinc.com/images/pdf/max-prop/PYI_Max-Prop_2_Blade_Instructions.pdf> > o 18° > o X = E > o Y (dot) = H > o Y (dot)(dot) = V > > Perhaps the 2 bladed prop is really that inefficient or my pitch should be > changed. Any advice will be appreciated. > > > Regards, > Ron > Ronald V. Ricci > S/V Patriot > C&C 37+ > Bristol, RI > ron.ri...@1968.usna.com <mailto:ron.ri...@1968.usna.com> > > >
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