Their is a foil 18 foot Skiff @ Sydney Flying Squadron (18 foot skiff club)in Oz.
It has an L shaped foil at the end off each wing that angles inward. They have no flaps and retract towards the hulls when coming into shore.
The rudder is a T foil with flaps that are adjusted through the tiller extension.
Last time I saw it, they were still working on some stabilaty problems but looked very quick with the kite up and in full flight.
May have to put foils on my Tornado now
