(under subclass 61.1) Subject matter wherein the marine vehicle has a mechanism (a) for inhibiting the hull from moving from a position in the water in which the hull has an upper surface horizontal to an overturned position or (b) for restoring it to a position in the water with an upper surface of the hull horizontal from a position in which the hull was overturned.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.23, for means for uprighting a sailpowered watercraft.
121+, for ship ballasting, per se.
283, for a planing-type hull having a laterally disposed skid or pontoon.
360, for a boat with means to prevent capsizing or sinking.
