The purpose of this paper is to describe the feasibility research of the application of oscillating fin propulsion control system to vehicles. The system was designed and constructed to he combined with a ship model. Tank tests using the ship model have confirmed the system's feasibility. As a result, several advantages of the oscillating fin system have been found out. A neural network was successfully applied for an identification of the ship model dynamics with the oscillating fin, and its effectiveness was confirmed. Artificial fish, intended as an amusement attraction for aquariums, using the oscillating fin propulsion system have been developed. Its capability of untethered 3-dimensional movement was confirmed.
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