[C320-list] Folding Propellers for 3YM-30

[Richard A. Walker]

The real best is the Autoprop offered by Russ.  
 Practical Sailor backs that up.


Cheers,
 
Dick Walker
C-320 (687) WindWalker II
740 Olive Ave.
Coronado, CA 92118-2136
619.435.8986



-----Original Message-----
From: c320-list-bounces at catalina320.com
[mailto:c320-list-bounces at catalina320.com] On Behalf Of Len
Sent: Tuesday, September 05, 2006 5:41 PM
To: C320-List
Subject: Re: [C320-list] Folding Propellers for 3YM-30

Well, rule of thumb for folding prop is to size 1 pitch over Factory
prop---this has been confirmed by sea trials---and 3YM30 has 15 x 11
Factory.  After talking to many, I'm convinced that you're best to stick
with a 3-blade prop, fixed or folding, especially for power in rough seas.

Gori has good rep for quality and design, so I'll be going with 3-blade 15 x
12 folding prop sometime before end of the year.  Won't know about shaft
length being OK as is until then.

Len
Aqua5   #1070




On 9/5/06, Kurt R. Budelmann, M.D. <krbmd77 at charter.net> wrote:
>
> Thanks, Len for the info.  Any particular reason you went for the three
> blade over the 2-blade Gori?  Did you have to make any modifications for
> clearance?
> __
> Kurt R. Budelmann
> Everwind, Catalina 320 #1035
>
>
> ----- Original Message -----
> From: Len
> To: C320-List
> Sent: Tuesday, September 05, 2006 3:22 PM
> Subject: Re: [C320-list] Folding Propellers for 3YM-30
>
>
> Planning to get Gori 3-blade folding 15 x 12 RH for Aqua5 (#1070).  Boat
> came with 15 x 11 RH, and after much checking, have determined that 15 x
> 12
> is best for Yanmar 3YM30.
>
> Len Krane
> Marina del Rey, CA
>
>
> On 9/5/06, Bob & Bel Harrison <b_harrison at shaw.ca> wrote:
> >
> > Maverick (#1007) has a 15" 3-blade "Classic" MaxProp.  It required the
> > prop
> > shaft to be shortened maybe 1/2" for installation.  With the adjustable
> > pitch set to 20 degrees (10.3 inches), we get a bit less than half a
> knot
> > more speed for the same engine revs than a 15x9 3-bladed fixed prop, and
> I
> > feel it could take a bit higher pitch as the engine has no trouble
> > reaching
> > high revs. Under sail, performance is much harder to quantify, but we're
> > pleased with it.
> >
> > Bob & Bel Harrison
> >
> >
> > -----Original Message-----
> > From: c320-list-bounces at catalina320.com
> > [mailto:c320-list-bounces at catalina320.com] On Behalf Of Kurt R.
> Budelmann,
> > M.D.
> > Sent: Tuesday, September 05, 2006 6:54 AM
> > To: C320-List
> > Subject: [C320-list] Folding Propellars for 3YM-30
> >
> > Can any of the owners with the new 3YM-30 engine tell me what type, size
> > and
> > pitch of folding propellers they installed and how they like them?  Also
> > any
> > modifications of equipment necessary to install?
> > __
> > Kurt R. Budelmann
> > Everwind, Catalina 320 # 1035
> >
> >
> >
>