Ski or snowboard has steel edges above solid snow surface and with no contact with bearing faces in plane in horizontal position

摘要

The steel edges of the ski or snowboard have no contact with the bearing faces in the plane in the horizontal position so that the steel edges are set slightly above the solid snow surface. The track face of the ski or snowboard has a radius across the running direction which corresponds roughly to the distance between the centre of gravity of the user and the ground. Independent claim describes modification of apparatus into a seat with guide handles etc for sledge type action.