Originally Posted by NevisDog
A multihull is already 'blue' because of its unsinkability. Rose-Noelle floated around the Pacific for months before coming ashore at Great Barrier Island - all survived. If their emergency beacon had been picked up... The real inverted problem is with ballasted monos - flood them and they sink.
I like cats and monos. But...
I see this differently too. I don't see "unsinkable" as necessarily making a boat "blue" or better designed for bluewater sailing or all seas and conditions. In other words, I may prefer a sinkable design over an unsinkable design or type of boat and consider it better designed as a blue water sailing
The case of the sailors living in an overturned boat is an exceptional or rare case. I think it much more likely most sailors of an overturned multihull will either exit the boat or die within it, even if it continues to float upside down).
In other words, I think both mono and cat sailors are at risk if their boats overturn in offshore
, bluewater, storm conditions.
My POV is influenced by a vivid memory of an overnight offshore race I was in where a large trimaran
capsized not far ahead of where I was in high winds and big seas in the Pacific. The USCG hello flew over our boat with spotlight on the water searching for the tri and their crew, some of which were separated from the overturned tri. I don't doubt the tri was floating. But I don't think that was much help to the crew. Partially submerged big slippery hulls are not easy to stand on or stay on with any seas. I know I would much rather be IN a proper SOLAS offshore life raft rather than trying to hug an upside down hull
in a storm.