[C38] performance

[William Knowles]

I installed a KIWI three blade in Flying goose this
year and had a marked improvement in both boat speed
and prop walk. Since the prop has a much greater pitch
in reverse than forward it bites faster in reverse and
gives that extra kick. The Kiwi is a good compromise
in cost also about $1200. Another thing I found is
keep your rudder straight when first backing it lets
the boat build speed quicker turning it to early acts
like a  brake in tight spots I know it is tempting but
if you reframe life becomes a whole lot easier.

Good Sailing
Bill
--- Charles <charles at finn.ws> wrote:

> Ken,
> I too was a bit taken aback with the prop walk on
> the 38s.  It is much 
> more than my last boat and I my experience on the
> helm on a couple of 
> "J" boats which have significantly less.  I think
> this is a trade-off 
> for our particular mast - keel configuration which
> allows us to point so 
> well.  As far as props go, I went to the three blade
> Sailor prop and 
> experienced what Phil is talking about in terms of
> the additional power 
> these blades have over the two blade.  Again, there
> are trade-offs.  My 
> three blade prop increases boat speed (over one knot
> at 2200 rpm for me) 
> and reduces fuel consumption (I keep track).  It
> also has reduced drive 
> train resonance, which really bothered me.  But, it
> does slow the boat, 
> which I could have eliminated with Phil's $2500 prop
> (mine cost $500). 
> I think your Universal is actually a 24 hp engine,
> which is a bit under 
> powered, but I am sticking with mine as I still have
> other places to put 
> that $10,000!
> It took me a couple/three years to figure out the
> throttle technique 
> (slow learner) and there are still situations that
> make me nervous such 
> as high winds with crowded docks.  But, this prop
> walk can be managed 
> with practice. 
> 
> Charles Finn
> Mighty Quinn #114
> 
> Kenneth M. Sutto wrote:
> >   I recently bought a '83 Catalina. I am in the
> process of getting to 
> > know the boat and how it handles. It has the
> standard Universal 21hp 
> > engine and two blade prop. My big problem is every
> time I try to back 
> > out of my slip the stern wants to got to the port
> no matter which 
> > way I turn the wheel.  I have a tight slip length
> and width wise.
> > Is there some way I can get more control
> performance wise other than 
> > getting a bigger engine? Would a three blade prop
> help? What is the 
> > best way to turn the wheel once I get water
> flowing past the rutter?
> > Ken  Catalina #251
> >
> >
>
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