DSK writes:

Martin Schöön wrote:
snip
Looking at them 'from a distance' I think I have gathered
that a J 24 is not a sport boat but both J 80 and Melges 24
are. How come? Because they plane more readily?


J-24 SA/D=22.6 D/L=145
J-80 SA/D=26.6 D/L=122
Melges 24 SA/D=32.1 D/L=73

Not a huge difference between the J boats I think.

How small can a sport boat be without becoming a dinghy?

I think part of the definition is that it has to be self-righting,
hence the bulb keels.

Ah, that rules out the J-24: Back in 1982 I met a guy who told me
that everyone who told me it was impossible to capsize monos
didn't know what they were talking about. He had hugged a keel
of a J-24 after a violent gybe. The J-24 stayed 180 untill helped
back on its feet.

Could a multuhull be a sport boat or is that too blasphemous?


I dunno about blasphemy, but why would you want to race against multis
against monos? There only be a small amount of fun in winning, like
defeating a ten year old at chess or judo; and imagine the ignominy of
(don't even think it!) one might lose.

You are reading something into the question that isn't there.

If the performance ratios were the main guide, then most multihulls
would easily qualify IMHO.

Fresh Breezes- Doug King


--
Martin Schöön "Problems worthy of attack
show their worth by hitting back."
Piet Hein