As the development and commercialization of Urban Air Mobility (UAM) are expected, the problem of guaranteeing the safety of UAM is becoming important because UAM has a high probability of personal injury due to passengers. In order to ensure UAM safety, it is necessary to maintain a safe separation distance from surrounding obstacles. Thus, a minimum separation distance (MSD) of the aircraft must be calculated. A dominant factor that affects the MSD is the total system error (TSE), which consists of navigation system error (NSE), and flight technical error (FTE). Even if NSE is fixed for a navigation module, FTE should be determined for the different types of vehicle and flight mission. In this response, this study simulates FTE by considering the characteristics of UAM which include a specific shape of the UAM airframe and expected flight missions of UAM. The flight simulation environment was constructed using Mission Planner and X-Plane 11 which are tools widely used to simulate a flight mission of 3D air vehicle. Based on the collected simulation data, FTE is modeled using Johnson distribution and Gaussian Mixture models. The FTE of UAM modeled in this research would be utilized to determine the MSD to guarantee the navigation integrity of UAM.

Keywords: Urban Air Mobility, flight technical error, simulation-based