Originally Posted by 44'cruisingcat
You need to re-read your previous posts, and try to get your story straight.
That is not a story but I was just me remembering past events
and my memory is not what it used to be if you want hard facts here they are. I guess they would be instructive for some:
As you know the French top racing multihulls are the top of the crop, being the fastest American and Australian ones older and slower ex-French racing multihulls.
The biggest French race where multihulls race at the same time with monohulls is the Route
du Rhum, a downwind
Transat. This is a top race with top racing boats and top professional skippers.
An Ideal race to compare the results through the years between the Open 60's, Multi 50 and Orma60 trimarans leaving out the maxi
trimarans (close to 100ft or more) simply because there are not top maxi
monohulls racing there (the biggest top racing monohulls are IMOCA with 60ft):
The year of 2002 is especially interesting because it was the year with more stormy weather and is relevant to what I have been saying about the comparative performance in bad weather and breakage rate between the two types of boats:
On the 2002 edition there were 19 ORMA 60ft trimarans, 8 multi 50ft trimarans versus 17 IMOCA Open 60's monohulls.
From the 19 60ft trimarans only 3 made it to the finish (between capsizes and breakage) the 50ft trimarans experienced an abandon rate of 38% and the 60ft monohulls had an abandon rate of 30%. It gives a global multihull abandon rate of 74% versus a monohull abandon rate of 30%.
Regarding times the fastest boat was a Orma 60 multihull (one of the three that survived among 19 boats) that made it in 13d 07h 53m closely followed by the first monohull (13d 13h 32m). Another 60ft trimaran
comes next with 13d 19h 36m followed by another 60ft monohull (13 22 50) and then the last surviving 60ft trimaran
(14 07 01). The First 50ft trimaran arrived only after the 4 first 60ft monohulls.
This is no upwind race in bad weather (if it was so the results would be a lot better for the monohulls), but just a downwind transat with bad weather
Looking at more recent editions and comparing the results of Multi 50 trimarans with Open 60 monohulls we can look at 2010 edition a race that had some stormy weather even if nothing comparable to the 2002 edition:
9 Open 60 versus 12 Multi 50 trimarans. One abandon among the Open 60, three on the Multi 50. Among these the first boats to arrive where 5 monohulls before the first trimaran. The difference between the first Open 60 and the first Multi 50 was about one day and a half.
You may stay with the impression that I am saying that 50ft top trimarans are slower than 60ft top monohuls but it is not what I am saying. On a milk run downwind without stormy weather a multi50 will be faster. With stormy weather downwind things start to get complicated for the Multi50 (or even ORMA 60ft trimarans) and they can be slower. With stormy weather upwind they don't stand a chance.
Don't take me wrong I love Multi 50 that I consider one of the more spectacular racing boats around and one of the more demanding for the skippers, specially with bad weather, a boat that will mark clearly the difference between a very talent sailor and just a good one.