G'Day Rob,
First of all, congratulations, I strongly admire people who think out of the box.
My question is how did you decrease the weight/surface area relation, for example comparing to a tornado. On light winds I can see the advantage, as you basically don´t need the weight of the winward hull, but on strong winds I believe that the extra weight of the cat would be an advantage, because the weight of the winward hull and the weight of the rig are helping to reduce heel. In this boat, all the weight of the boat, except for the crew and the small hull do not counterbalance heel.

G'day,
Thanks.

By increasing the beam. A Tornado has rm of half it's weight (80 kgs) x it's beam (3m) plus 2 crew (160 kgs) x beam. RM~ 720 kgm

We have 2 crew (160 kgs) plus ww hull plus half the beams (20 kgs)x 4m beam RM~720 kgs.

The weight cost of increasing the beam is offset by the weight saving of not having to support the mast in the middle of the boat and not having a boat which has to sail on both tacks.

Regards,

Rob