the original discussion was intended to be about IGE assisted lift
that is to say, to lift the boat up out of the water and reduce drag
I think it got side tracked explaining what IGE (In Ground Effect) is !
On Wednesday, 3 June 2015, 8:29, "Rob Denney harryproa@gmail.com [harryproa]" <harryproa@yahoogroups.com.au> wrote:
Most harrys would not come close to aerodynamic lift off at anchor due to all the parasitic drag.
I know of a solid wing deck trimaran (SuppleJack) which took off and capsized on a swing mooring in NZ many years ago, helped by it's wing mast.