"Marc Onrust" wrote in message
. nl...
Capt. JG wrote:

"Marc Onrust" wrote in message
. nl...
Peter HK wrote:


"sherwindu" wrote in message
...
One question nobody has addressed yet is what happens when a cat
capsizes? There
is no natural righting moment, as with a mono hull. I have never even
sailed on a cat
myself, but the heeling of a mono hull seems to offer some comfort
advantages, because the combination of sails and pendulum keel act as
a
kind of 'shock absorber' in wavy conditions. I would prefer to be
heeled over and on a steady lean than bounced up and down as one than
another hull is lifted and dropped by a wave, especially in
short choppy seas. Long rolling waves would probably somewhat nullify
this advantage. I am referring more to waves on the beam, but there
probably is some
effect on a close hauled tack.

Sherwin D.

There are occasional sea patterns that are uncomfortable on a multi,
usually
with beam seas, but the magnitude of the event needs to be considered.
Cats
reach max stability at about 5 degrees of heel (when a hull lifts). As
this
never happens on cruising cats, all heel angles are less than 5
degrees.
Short sharp waves can occasionally exceed this a little due to the
hulls
being in a trough and crest. Compare to a mono rolling downwind where
heel
angles can be 30 degrees side to side.

Multis do have a different motion- shorter and sharper compared to
slower
but much more amplitude on a mono.
Personally I find it quite comfortable. As stated in a previous post a
glass
never spills, which is a significant observation on the severity of the
motion.

When a multi capsizes it floats- most are now equipped with hatches to
enter
a secure part of the hull in a capsize. When a mono sinks however-
dragged
down by that ballast that makes it self-righting- the only hope is a
liferaft.

It depends on what you think is the most basic safety feature-
nonsinkability or self righting.

Peter HK

I guess most people prefer to be upside-down-but-floating compared to
upright-on-the-bottom of the Atlantic. The next question though, is what
are
chances of such events to happen? When I cross the Atlantic (or whatever
waters) I rather opt for a 1% chance to sink my monohull (and trust on
my
liferaft) than a 20% chance of capsizing my cat. Now, both figures are
probably
far from accurate, so my question is, what are chances that such things
will
happen?

Regards,
Marc
www.marineyacht.com

I don't think I recall hearing about any cruising cats that have
capsized.
Where are you getting 20% or even 5%?


I don't have a clue about those figures, that's why I said they (the
figures)
are probably far from accurate. I'm only trying to make clear (like
discussed
in the thread above as well) that you can only objectively compare the two
events (sinking a monohull vs. capsizing a cat) if you know what the
chances of
both events are. In doing so, I over exaggerated both 1% and 20% figures,
just
to make my point clear. I would prefer a cat by the way.

Cheers,
Marc
MarineYacht Yacht Charters

I would also if I could afford it... :-) Actually, in the bay, I like the
heel of the mono. I'm just not sure I want to do that again for days on end.


--
"j" ganz @@
www.sailnow.com