[C320-list] RPM Vs SOG

[pat reynolds]

Thanks Warren, That should help out global warming


--- On Mon, 8/25/08, warren updike <wupdike at hotmail.com> wrote:

> From: warren updike <wupdike at hotmail.com>
> Subject: Re: [C320-list] RPM Vs SOG
> To: c320-list at lists.catalina320.com
> Date: Monday, August 25, 2008, 12:25 PM
> Adam, thanks for pointing out my mistake. Actually,
> realizing the
> limitations of the original (yuck) two-bladed prop, I had
> replaced it with a
> six-bladed fan blade from an old oscillating fan I no
> longer used. The
> hardest part was drilling out the hub to the 1" dia.
> of the shaft. (:>)
> 
> (not repeating my name)
> 
> -----Original Message-----
> Adam
> 
> I can't believe you haven't upgraded yet ! .. :)
> 
> Kirk
> 
> #124
> ----- Original Message ----- 
> From: "Chef Adam Weiner"
> <esquirecatering at rcn.com>
> To: <C320-List at Catalina320.com>
> Sent: Sunday, August 17, 2008 2:59 PM
> Subject: Re: [C320-list] RPM Vs SOG
> 
> 
> >
> > Warren, don't say that you use the two bladed fix
> prop on this list.  You
> > will regret it.  Every time I do there are massive
> personal and 
> > non-personal
> > attacks on my sanity for not using folding,
> feathering, no-prop, etc.
> >
> > Adam
> >
> > -----Original Message-----
> > From: c320-list-bounces at lists.catalina320.com
> > [mailto:c320-list-bounces at lists.catalina320.com] On
> Behalf Of warren 
> > updike
> > Sent: Sunday, August 17, 2008 1:32 PM
> > To: c320-list at lists.catalina320.com
> > Subject: Re: [C320-list] RPM Vs SOG
> >
> > I have the original two blade prop and get between 5.5
> and 6.0 SOG 
> > depending
> > on conditions at 26-2700rpm. I rarely run over 3K
> except for short spurts.
> > Temp is always between 175 and 190. Cooler in the
> spring and fall, warmer 
> > in
> > the summer when the bay water reaches 80F.
> >
> > Last year I used the optical tach from the C320 Tool
> Box to calibrate my
> > tach so I'm confident it's reasonably
> accurate. In comparing responses to
> > your query, take into consideration that tachs as well
> as temp gages may
> > vary widely.
> >
> > Warren & Pattie Updike
> > Catalina 320, #62, "Warr De Mar"
> > Middle River, Chesapeake Bay
> >
> >
> >
> >
> > -----Original Message-----
> > I have an adjustable pitch MARTEC 3 blade feathering
> prop. and am trying 
> > to
> > decide if its pitched correctly and how well it
> performs.  I can get the
> > RPM's up to 3400 under full power and achieve 6.8
> knts SOG under calm sea
> > and weather conditions.  At 2700 RPMs I'm doing
> about 5.4 knts.  3000 gets
> > me to about 5.9.  How's that compare with others. 
> My temp gauge reads
> > exactly 180 degs. at 2700 and rises just over the 180
> deg mark when I push
> > it to 3200 but seems to hold.
> >
> > Thanks,
> >
> > Joe Tamucci #619
> >