[C320-list] DO NOT READ IF YOU ARE TOO BUSY.Was: Regatta TechSessions - a summary NOW: AutoProp Speed Warning

[Orlando.Duran at AveryDennison.com]

Top boat speed ever on cuba libre 2 in a race, downwind with swell
help...11.3kn, sustained about 9.0 - 9.5 for about 30 minutes!


                                                                          
             "Jeffrey Hare"                                               
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                                      Re: [C320-list] DO NOT READ IF YOU  
             09/14/2006 09:50         ARE TOO BUSY.Was: Regatta           
             AM                       TechSessions - a summary NOW:       
                                      AutoProp Speed Warning              
                                                                          
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You mean you can't?

We've actually had our boat up over 56kts.  But it was on a trailer coming
up the highway.

Cheers!
-Jeff

PS: Theoretical hull speed is somewhere around 7.2 kts. You'll probably
never be able to sustain much more than that, although you can surf to 8
in
big waves with some skill.  The 13kt warning is humorous in that context.

-----Original Message-----
From: Len [mailto:aqua5len at gmail.com]
Sent: Thursday, September 14, 2006 12:36 PM
To: C320-List
Subject: Re: [C320-list] DO NOT READ IF YOU ARE TOO BUSY.Was: Regatta
TechSessions - a summary NOW: AutoProp Speed Warning

How do you even get close to 13 knots.......downhill?

Len
Aqua5  #1070


On 9/14/06, jonvez at comcast.net <jonvez at comcast.net> wrote:
>
> That explains my overpitching problem! If I get the engine up to 3600
RPM,
> I'll be in danger of getting up over 13 knots! Thanks for the chuckle
> Bruce...
>
> Regards,
>
> Jon Vez
>
> -------------- Original message --------------
> From: "Bruce Heyman" <BruceHeyman at cox.net>
>
> > There is a blue warning label on the outside of the envelope that my
> > Autoprop installation instructions came in. It tells you to make sure
> the
> > engine is engaged into the ahead position when sailing to allow the
> > Autoprop's blades to feather. However, "...WHEN EXCEEDING 13 KNOTS
UNDER
> > SAIL LEAVE GEAR SHIFT IN NEUTRAL...." I'm thinking of having a warning
> > label made up for my binnacle to remind us to move the transmission to
> > neutral when we chose to sail over 13 knots....:-)
> > Bruce
> > Somerset 671 SoCal
> >
> > -----Original Message-----
> > From: c320-list-bounces at catalina320.com
> > [mailto:c320-list-bounces at catalina320.com] On Behalf Of J
> > Sent: Wednesday, September 13, 2006 8:42 AM
> > To: C320-List
> > Subject: Re: [C320-list] Regatta Tech Sessions - a summary.
> >
> > So there are 3 conclusions here. First, the engine should be able to
> turn
> > 3600 RPM at hull speed regardless of which prop is used. Second, 2800
> RPM is
> >
> > a good cruising speed assuming the prop is pitched correctly. Third,
> > Autoprops are not pitched correctly and are not adjustable.
> >
> > Signed
> > A very satisfied MaxProp owner ;)
> >
> >
> >
> > ----- Original Message -----
> > From:
> > To:
> > Sent: Wednesday, September 13, 2006 10:02 AM
> > Subject: Re: [C320-list] Regatta Tech Sessions - a summary.
> >
> >
> > > Re 3GM30F RPM. My manual says max RPM is 3600. At 80%, that makes
> > > cruising
> > > RPM 2800 to 2900...my Yanmar guy said to use 2800.
> > >
> > > Bert
> > > At Ease
> > > #442
> >
> >
> >
> >
> >
>






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