[Rhodes22-list] Hull speed under power

[brad haslett]

Slim,

Actually, your two-stroke is just as happy at full
throttle, if not happier, than at 3/4 or 2/3 throttle.
Noise level is another matter.
Chances are the prop you have was sized by the
manufacturer to allow the engine to achieve max RPM
and no more.  The pitch "should" be stamped on the
prop but if it isn't look for a part number and
cross-reference it with a chart off the net. 

Now as to the C&C 24, just being two feet longer gives
it some advantage already.  Also, most of the C&C
hulls were optimized for racing. Hope you feel better.

As we say in flying "Speed Is Life!"

Brad Haslett
"CoraShen"

  
--- Steve Alm <salm at mn.rr.com> wrote:

> I'm wondering if I have the right prop.  I have a
> '97 Mercury 8.0 two stroke
> that runs great and starts on the first or second
> pull every time. (Don't
> worry--I'm not going for the two stroke vs. four
> stroke issue here.)  With
> zero wind and at full throttle, I can just barely
> make hull speed of 5.9 or
> 6.0 knots.  In a light head wind, I can't even come
> close to that.  But I
> don't like to run the motor at full throttle for
> long.  Typically, I run it
> at about 2/3 or maybe 3/4, and I get about 4 or 4.5
> kts. depending on the
> wind.  It seems like I should have a little more
> umph than that, so I wonder
> about the prop.  I don't know what kind of prop I
> have--there's no number or
> anything on it.  How do you tell?
> 
> Slim
> 
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> 



		
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