A water propelled toy torpedo including a main housing having an open forward end and an open rearward end. A battery pack is disposed within the main housing inwardly of the open forward end. A battery cap is disposed within the open forward end of the housing in communication with the battery pack. A forward portion has a micro switch extending forwardly therefrom. A motor is disposed within the open rearward end of the main housing. The motor is in communication with the battery cap. The motor has a shaft extending rearwardly therefrom whereby an outer end of the shaft is disposed outwardly with respect to the open rearward end of the main housing. A transparent cap portion couples with the open forward end of the main housing. The cap portion has an open inner end and a closed arcuate outer end. The arcuate outer end has a post extending inwardly from an inner surface thereof. An inner end of the post selectively contacts the micro switch of the battery cap to facilitate activation of the torpedo. A tail portion couples with the open rearward end of the main housing. The tail portion has an open inner cavity and an open outer cavity. The open inner and outer cavity's are separated by a central wall. The open outer cavity has a propeller disposed therein. The propeller has a shaft portion extending through the central wall into the open inner cavity. An inner end of the shaft portion is coupled with the outer end of the shaft of the motor.

Apparatus for generating a stream or burst of water through a vehicle mounted water cannon by a remote transmitter which generates signals for receipt by a receiver mounted on the vehicle for controlling the stream or burst of water.

A water tank provides an activity space for an underwater wireless remote-controlled toy. A wireless transmitter is positioned within the water tank and emits wireless remote-control signals to the toy, whereby underwater movement of the toy is controlled. The wireless transmitter may transmit either electromagnetic or infrared control signals to the toy.

A device for recreational and educational use includes a substantially cylindrical section having a first end, and a second end. A cavity is disposed within the substantially cylindrical section to receive fluid when the device is immersed in a body of fluid. The substantially cylindrical section decreases in radius toward the first end and present a low drag profile to impinging fluid flow. Control surfaces are included on the substantially cylindrical section. A stabilizer is coupled with the substantially cylindrical section, to stabilize motion of the device in the body of fluid when the device is launched by a user. The device can be hand-launched by a user. Energy storage assisted launch mechanisms are also described that assist the user during submarine launch of the device.

The present invention provides a remotely controllable, miniature vessel for use in the collection of data in aquatic environments. The miniature, boat of the present invention has two opposite parallel pontoons held in such position by at least one transverse member. The boat has an electro-mechanical module including a power source, propulsion means, remote control receiver and a plurality of servos operatively connected to allow the speed and direction of the vessel to be controlled remotely. A removable platform between the front sections of the pontoons permits the mounting of water collection data apparatus, such as light weight Doppler or water sampling devices. Real time communication of data collected may be made by a modem on board the vessel.