A control / propulsion
system for a model
submarine 4 to 7 ft. in length, (can vary within reasonable limits) using
bilge pumps, RC components, and exacting
ballast to make the
submarine completely functional without any external
moving parts such as
propeller,
rudder, and dive planes. Unlike most model submarines which use external
moving parts for directional control such as
propeller, dive planes and
rudder, the proposed control / propulsion
system accomplishes complete directional control without the use of any external
moving parts. This is accomplished with
bilge pumps providing jet water thrust through fixed nozzles for all directions, forward, reverse, left, right and down. Since the
submarine is positively buoyant the cessation of forward thrust allows the submarine to surface. This is an added safety feature in case of loss of
radio signal. Additionally the functional components of the proposed control / propulsion
system are extremely simple compared to other typical model submarines. The major components are simply a battery, to supply power, a watertight chamber, housing the radio and electrical components,
bilge pumps, to provide jet water thrust, and fixed directional nozzles and plumbing to provide desired directional control. The simplicity of this system greatly enhances the reliability of the model submarine and provides trouble-free operation for many hours without the concern of losing the submarine.