But none of them win races anymore -not even in the southern ocean
running before waves....



felton wrote:
But we weren't talking about optimal racing designs. We were
originally talking about seaworthy designs for challenging conditions,
at least I think we were.

And structural strength. That was the specific point I raised which MC
seems to have not grasped.

From the Hall of Fame induction...
.....
Of all the bragging rights that go with Valiant 40 ownership, one of
the most impressive, according to Worstell, is that no Valiant 40 has
suffered a disabling failure. "Failure" is certainly not a word to use
in connection with this boat, whose success began with innovation and
continues with enduring excellence."




MC wrote:
No think of this: A flat reverse transom is lighter because no material
is added beyond that associated with the aft section. Think of the
amount of curved material in a cnaoe stern that does not contribute to
hull performance!


And this has *what* to do with structural strength?

The issue at hand- all else being equal (which you can take to mean
framing, lay-up, and/or weight per square measure of hull surface)

... The nearly flat transom has to resist mostly
compression of the hull section but as you can see from sugar scoops and
cut aways that is not that large.

Most of the sugar scoops I see have some structural support. The radical
ones on racing boats are built out of hi-tech materials, which are
usually far far stronger anyway. In other words, using the same
materials, a canoe stern could be built lighter. That doesn't mean it
would be as fast of course, and that is why you don't see canoe sterns
on racing boats.


... Put another way, closing the transom
mostly stops waves boarding.

hmm, I thought you claimed to have at least some tiny eddication as a
naval architect? Now you are showing ignorance of basic physics. Closing
in a transom does not stop waves from boarding. Reserve bouyancy stops
waves from boarding.

A transom would only have any effect in stopping a wave from boarding
after the pitch rate had exceeded the reserve bouyancy.




.....Do you get it now -as for strength, have you seen a transom
crushed by waves -or does one design boats for ramming exercises?

No because usually they are built strong enough. But that does not prove
that, pound for pound of like material, a canoe stern is stronger. Which
is an inherently stronger shape, a triangle or a square? A pyramid or a box?



Hey, I'm not the one agreeing with Jax


But he he knew the answer to your question.

He didn't even understand the question. BTW you still haven't explained
your statements, or your own answer to the same question. Giving up?

BTW2 when are you going to pay me the money you owe on the bet you lost?

You ran away from explaining the capsize ratio, and here you are talking
about structural issues. Do you ever stick with a topic long enough to
actually learn anything?

Fresh Breezes- Doug King