[quote=samc99us]A tornado has a minimum weight of 155kg or 341lbs. This is achievable through the use of a nomex core and prepreg S-glass hull cured in an autoclave coupled with a carbon rig, carbon spin pole and sails that are on the lighter side. This was state of the art in aerospace composite manufacturing techniques at the time and is still a pretty advanced construction method. A-cats are build in a similar manner to achieve their 165lb weight for an 18’ x 7.5’ platform.
The Tornado class rules have the minimum weight: http://www.tornado-class.org/wp-content/uploads/2013/05/Tornado_2016_CR_281016.pdf
Best look at SCHRS data for other boats: https://www.schrs.com/ratings.php
Also the weight of Groupama C was never published but pushed close to 300lbs from what I know. The materials used in their hull were manufactured in Switzerland under a division of North Sails that owns the thin ply production methodology and can create prepreg carbon fabrics in the 20gsm range. You won’t find this on any production boat or semi production boat; Groupama C was a million dollar design and build.[/quote]
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