Thanks masalai and groper for your reply. I have had a look at the thread. unfortunately the link http://www.boboramdesign.com.au/39-c/ is not...
The most common hull design for WIG at the moment I found was monohull with outriggers on the wing tips which actually you may say is a trimaran...
I am currently doing R&D project on wing in ground craft. According to my research, a low resistance planing/semi-planing catamaran hull design...