[MHml] Single rig on one hull of cat. - Kelsall wing rigs.

[Rob Denney]

JAM,
You had your chance to find out about shunting when you were talking
about racing the Chi Mac in a dirt cheap 50' proa a few years back.
Incidentally, this boat is now being built, if you can pay the
container freight from here to there we can do next years race.  Or
come over for a holiday later this year and go for a sail.  Not much
to break on it, so you won't be getting any epic stories, but you will
do plenty of shunting.

Biggest advantages are safety related.  Shunting instead of gybing or
tacking in big seas/strong winds,  being able to stop, reverse and
sail straight back to a man overboard and reversing off if you run
aground.    I'm yet to prove it, but I am pretty sure that the ability
to shunt quickly from reach to reach and sail forwards and backwards
would mean that a proa would win a match race start against a
tacking/gybing boat, all else being equal.   In normal racing a shunt
is not enough slower than a tack to worry about, but is much slower
than a gybe, particularly if extras are being used.  Working on this
with the new boat.

Mast will be a squashed Clark Y wing section, including curves.   Has
an integral track, but  no compound curves as I want to start with
easy, and no taper as the sail is square and the mast telescopes.
Currently building NACA0012 rudders using the same technique.  First
one was a fiasco, but the technique works, I just have to work more
accurately (story of my life).    Pictures and description will be on
the yahoo harryproa chatgroup when they are finished.

Martin,

Could we have a bit more information, please.  What is so special
about where you sail, and why did Ted (who as far as I know, built one
proa, with a time consuming shunting system, sailed it a couple of
times and gave up)  think it would be suicide?

rob





On Fri, Mar 26, 2010 at 1:00 AM, John Andrew Metza
<john at champengineering.com> wrote:
> Mr. Denny Wrote:
> "From my proa experience (most of the last decade), being able to shunt
> is an asset much more of the time than being able to tack."
>
> Being a shunt virgin, I can only speculate about the expert techniques you
> employ in these warm, wet, slippery circumstances.  Since all my attempts to
> hook up with a good looking proa have failed, I beg you, let me live
> vicariously through your experiences.  So when my time finally comes, and it
> will. I can complete the act.  Not leave her longing for a more experienced
> master.
>
> Seriously, please explain Rob.
>
> jam
>
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