In the proa files the concept has been taken up and drawn by Jerry
(Southern Outrigger Shutamaran in files3). I still think it should be
based on an Elementarry configuration with ruders and rig and and
Ihave reservations about cabin height and subsequent windage but he
has done some lovely drawing of the concept. He also points out that
if the starting point was the monocoque rather than an addo on cabin
it should be lighter.
Robert