Study on Aerodynamics and Flight Performance of eV/STOL

A variety of UAV (Unmanned Aerial Vehicle) and UAM (Urban Air Mobility) have been developed. Most of these are multi-rotor type and their VTOL (Vertical Take-Off and Landing) capability is their strong point. However, in terms of performance they tend to lack of endurance. Therefore, many type of fixed wing VTOL are being developed in the world. As one of them, we proposed original fixed wing VTOL to improve the endurance performance with a simple mechanism. Our fixed wing VTOL is equipped with ducted fans for thrust, and it can also take off and land in a short field. Then we call it eV/STOL. In this paper, a concept and an outline of the proposed eV/STOL are described. Computational fluid dynamics analyses of aerodynamics of the aircraft are conducted to reveal its aerodynamic characteristics and flight performance. And the flight performance of the eV/STOL is theoretically discussed.