Abstract: A remote controlled self-propelled toy vehicle is disclosed which is capable of moving on a solid support surface and also on water. Two motors and a power source are mounted to the hull of the toy vehicle. Each motor drives, through a suitable transmission assembly, a drive wheel and a screw propeller. The drive wheels are disposed to come into contact with the solid support surface for operation as a land going vehicle, and the screw propellers are disposed for submersion in water when the toy vehicle is operated as a boat.Steering of the vehicle is accomplished on the solid surface and also on water by varying the power output of the motors so that uneven power output of the two motors causes the vehicle to turn. A suitable, preferably radio signal emitting remote control system and associated circuitry is provided to allow a player to steer the vehicle from a remote location.

Abstract: Disclosed herein is a marine propulsion device including a lower unit having a gear case, a laterally extending anti-cavitation plate extending above a propeller carried on a propeller shaft rotatably mounted in the gear case, and a pair of generally flat side fins, each of which has a laterally extending trailing edge located wholly forwardly of the propeller and which either extend laterally in coplanar relationship from the opposite sides of the gear case, extend laterally in coplanar relationship from the opposite sides of the lower unit at a location between the anti-cavitation plate and the gear case, extend outwardly and downwardly in an angular relationship from the opposite sides of the gear case, or extend laterally in coplanar relationship from the opposite sides of the lower end portion of a vertical fin extending downwardly from the gear case.