Thank you for info!
It all goes to show what a pity the Taipan 5.7 was not developed as a class. With 140 kg weight all up with aluminium beams and mast (no carbon anywhere), this is a superior alternative to the 190 kg F20 class. It shows that weight limits of 180 kg for the F18 and 190 kg for the F20 classes are unnecessary anachronisms in our time (due to dominant companies Hobie and Nacra are building heavy boats).

Maybe a new F20 class with min weight 140 kg, max mast height 9.5 m, max width 2.60 m would be an excellent alternative for heavier sailors? And actually a good alternative to the 180 kg F18.

Stein