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PET bottle rocket is a rocket system that obtains thrust by injecting water with compressed air at high pressure, is usually manufactured using a pressure-resistant plastic bottle. Although it is compact and easy to manufacture, the technical elements and principles included in the PET bottle rocket are many in common with the actual rocket system and it is an appropriate system as a teaching material for science education and research. In this research, we developed a simulator based on a numerical calculation program based on dynamic consideration about the flight performance of PET bottle rocket, and theoretically analyzed the optimum flight conditions for obtaining the flight distance and flight stability of the rocket. Based on the analysis results, factors that influence the flight performance of the PET bottle rocket by applying the "Parameter Design Method" were extracted, and the flight conditions to obtain the optimum maximum flight distance and flight stability were verified.

Optimization of Flight Performance of PET Bottle Rocket by Integrated Analysis of "Dynamics Simulation System" and "Parameter Design"