Carl,

I feel that a 20 footer should be suitable for us 'heavyweights'. People become heavier every year, so there should be some natural potential for recruitment

What I would like in a 20 foot formula class is:

Max 20 feet length 10 feet wide (2x1, the age old formula for cats), but open for shorter/less wide boats.
Minimum weight 120Kg's including 5Kg corrector weights, no upper limit.
Sailarea upwind, max. 25square meters
Sailarea downwind, max. 50 square meters
Mast area/2 included in sailarea
Mast max. 30cm chord (to stop solid rigs, let the C-class keep the wings)
Not sure if mast height should be included, initially I would say no.
T-foils allowed on rudders, no other hydrofoils intended to lift the hulls allowed.
No glued beams.
No material restrictions

Open enough to allow experimentation, but closed enough to allow some good racing must be the goal. I always tought that was the idea behind Formula racing.