Abstract: A steering device consists of a towed steering surface or blade attached to a marine vessel by means of lines. It provides a method of steering the vessel in fluid. The blade is either rigid or non-rigid and may be supported by a framework. Control of the blade is by an attached lever/quadrant or by lines. Attachment lines and/or control lines can be configured according to the current invention so as to permit a lightweight construction of blade and/or light loads on the helm. The device can be designed as primary steering or as a form of emergency or reserve steering which can be deployed either with or without prior preparation of the vessel.

Abstract: A rudder sleeve for enlarging the surface area of a boat rudder includes first and second stainless steel plates having four side edges defining first and second opposed major hydrodynamic surfaces. The rudder sleeve has a substantially rectilinear periphery. The first and second plates are secured together around the periphery of three of the four side edges by welding to define a narrow pocket between the first and second plates enclosed on three side edges.An open side edge is provided for placing the boat rudder into the pocket. Fastening bolts are provided for being extended through the first and second plates and the boat rudder from side-to-side to fasten the rudder sleeve to the boat rudder.

Abstract: The present disclosure relates to a method and apparatus for recovering sunken wrecks. More particularly, the present invention concerns a method and apparatus for recovering sunken wrecks wherein a harpoon is launched from a submarine device, implants itself in the wreck and is provided with a rope and means for fastening a pull cable. The end of the rope which is remote from the harpoon is floated to the surface. An apparatus placed at the end of the pull cable is caused to descend along the rope, and at the end of the stroke the apparatus automatically fastens itself to the harpoon. Thereupon, the wreck is pulled up by means of the pull cable.