Originally Posted by ontherocks83
First off all boats can sink even catamarans. So taking that argument completely out of the mix that leaves you with capsizing. (in this example anyways).
I've been knocked down in a 30ft catalina
(water pouring into the cockpit) she weather
helmed and came right back up. If I had done the same thing in a catamaran
I would have been screwed. ( now I know it is harder to do on a catamaran
but it is still possible) and before you get all hurt I love catamarans. I've chartered a couple and enjoyed them very much.
However if I were to be crossing an ocean I would feel much more comfortable in a mono knowing that if things get bad I can button up the hatches and if we get rolled the "lead" will eventually get the big metal pole pointing upwards again and I can continue on.
From a more practical perspective however if I consider the same scenario on my cruising tri.. I would be enjoying a rather nice day sailing
Let's just real quick look at the extremes. My tri is 22,000 lbs across 3 hulls, my maximum degree of heel that I have ever been able to manage is probably somewhere around 10 degrees and that was in 35 knott winds doing about 9 knotts. I am far, far away from a random gust upsetting anything enough to start a knock down.
Further look at the loading numbers on the rig. At about 900 SQFT of sail (assuming the sails
are fully deployed) a 50 knott gust will exhibit about 10,000lbs of force on the sail and the boat assuming it is perfectly positioned on the beam; that is less than half the weight required to actually pick the main hull
out of the water
and flip the boat over. You would need more than 22,000lbs of force to knock the boat over with wind
alone. And let's be honest, even in the 50 knott gut more than likely if I still have my full sails
up my mast
will be departing the deck
leaving my chance of getting knocked down at about 0.
Comparing a racing
tri to a cruising tri is a major fallacy. That racing
tri that got knocked over probably had immensely more sail area as well as a weight in the range of 10,000lbs or less and they were probably already healed over maybe 15-25 degrees with the outer hull completely airborne which would also give another area for wind
off the beam to apply pressure and assist the turning process which are two more conditions which would simply never be possible in a cruising tri.
To the best of my knowledge about the only thing that is going to flip my tri would be a breaking wave over 20+ Ft in height and/or incredibly bad judgement in high winds and swells in the range of 30-50 feet. Then again, the Casanova's sailed my exact same boat through worse than that and survived unscathed. So once again I think it proves that keeping a boat upright is probably more about the skipper
than it is the boat.