I guess I don't know what a formula class is. I always think of it as being very simplistic and allowing for great latitude in development and creativity, like with the Formula 14 Class. My idea of a formula class is maximum width, maximum length, maximum sail area, minimum boat weight.

As long as you stay within the sail area, why can't you have a biplane rig, a gaff rig, a lateen rig, a kite, or whatever? And why do you require the boat to have two rudders? If there were still any Dingos around, the F-16 rules would preclude it because it has one rudder in the center. There is an old design in Europe that does not have any rudders at all -- and they still race, the last I heard.

What is the point of a Formula class that is as restrictive as a one-design class?