A hydrofoil craft includes a hull having a longitudinal axis, a pylon
secured to and extending beneath the hull and a lifting foil secured to
the pylon. The lifting foil has an upper surface and a lower surface. The
upper surface of the lifting foil is substantially planar and the lower
surface of the lifting foil is not coplanar with the upper lifting
surface. The lifting foil has a fore portion and an aft portion that are
traversed by a longitudinal axis and wherein the longitudinal axis is
substantially parallel to the longitudinal axis of the hull and the
thickness of the foil is greater at the aft portion than at the fore
portion.