I agree with all comments.
I prefer a mainhull with outrigger concept
in preference to the catamaran
. This gives a better use of interior
accomodation and much lower cost of construction.
To overcome the "space" situation you can fold the outriggers like Farrier or Dragonfly.
Another alternative which is becoming popular in the large ferry
multihulls or powered "trimarans" is to mount the outriggers much closer to the main hull
or "mono with training wheels"?
allows the use of fast non displacement
designs with the stability of the outriggers.
Another advantage is shallow draft
I am really appreciating the higher speeds available and I am replacing two 30hp Honda's (max 10 knots) for two 90Hp Tohatsu TLDI two strokes. I will let you know how she goes.( i hope to cruise
at 12-15knots, with a max approching 20 knots.)
I will still use the sail for downwind economical cruising.
I am in the process of modifying "Beau's boat" to be be more "powerboat orientated" the outriggers are being moved further back with a 2ft gap between hulls for overall spec's of 39 ft long X 15ft wide.
However the outriggers can still be folded out to 22ft wide for sailing if needed, but because any sailing will only be downwind this may not be necessary.