Monomaran

[Guido]

I've appreciated very much your reply, as usual is very precise and compliant to my questions. Based on your and others replies I think that this hull ideas are definetely to be abandoned.

Cheers

[daiquiri]

The replies given so far are based on common knowledge of hydrodynamics and known issues with existing boats. If you need to be sure whether or not an unconventional idea actually can work, there's the option of scale model testing.
There is also the possibility of using CFD tools, but they alone can't be used for decision-making if not calibrated and verified against the trusted experimental or operative data based on similar existing hulls - which, in this case, would imho not be easy to find.
Cheers