Bob,

Pretty much all F12 designs presented so far could carry more weight, but that doesn't mean that the competitive weight range is expanded to 75 kg.

Compare it to a F18 carrying over 200 kg (over 420 lbs). It can do it without any problems but you still won't be competitive with crews weight 145-155kg.

It is the same with the F12. The design was always intended to be able to carry more weight recreationally as it was agreed upon early on in the project that a parent with kid should be able to sail it (when the child first learns to sail it).

When we talk about a (competitive) weight range running from 40-65 kg than we are refering to youth RACING and not recreational sailing. Of course, adult can race this F12 as well but then to make things fair we need a minimum crew weight rules and split the racing in to groups.

the youths : 40-65 kg
the adults : over 65 kg

The adult will go around the course slower then the youth but as all adults will go slower by equal amounts the racing inside a group will be fair again.

And that is the end of my coffee break.

Wouter