" said:
IMO, Ted Brewer's motion comfort ratio is BS. Brewer is an interested
party and he admits that the "ratio" was made up as a kind of joke.
There is absolutely no evidence that it works. As a general theory is
is indefensible.

No, it's defensible on several grounds. It was invented by a
knowledgeable NA, it does model
that "bigger + heavier = more comfort" which is true, and it is widely
quoted.

None of that makes it a valuable quantity for comparing boats IMHO.
For example, if you take two boats of very similar dimension &
displacement, the one with longer
overhangs will have a higher "Motion Comfort Index." Why? Because old
salty prejudices favor boats
with long overhangs. Long overhangs were fashionable in the early
1900s but they don't make a boat
more comfortable at sea, if anything they make it wetter, slower, and
less "comfortable" by most
definitions of the word.

.... On any given day I'd bet you'll be a lot more
comfortable in a Catalina 30 than you will be in a 5.5 meter both in
terms of motion comfort and amenities but you certainly will not learn
that from the "comfort" ratio.

And you'd be more comfortable yet in a cheap hotel. Where does this
fit into the ratio?



... Any comfort motion rating system that
says that the Colin Archer ketch is the pinnacle of comfortable is
just plain cr@p. I'd rate the "comfort ratio" as significantly less
important than the color of the mast step in my boat comparison list.
Of course, TB has a different view. You can see his rational he
http://www.tedbrewer.com/yachtdesign.html.



Jere Lull wrote:
I'd be a bit less inflammatory if I wrote on the subject,

Yeah, but where's the fun in that?


Then again, if we're heeling between 15 and 25 degrees, my lovely lady
knows not to complain as that's normal for our lovely
lady/beast/vessel. If she were longer and heavier, the acceptable heel
numbers would be a bit lower.


And most likely, slower in lighter air.
95% (or more) of all sailing is done in winds of less than 15 knots.
Therefor, any boat
which does *not* have to reef or reduce sail in 15 ~ 18 knot winds is
a *less* capable
vessel. But again, old salty prejudices lean the other way....

Fresh Breezes- Doug King