Joon Soo Ko

Abstract: Multi disciplinary approach for aerodynamics, structure, propulsion, and flight control system is necessary to develop High Altitude Long Endurance Unmanned Aerial Vehicles (HALE UAV). Various HALE UAV development trends are surveyed to understand their operational requirements. Separating the UAV Take Off Weight by 150kg, Airworthiness implementation direction for HALE UAV is studied under the current Airworthiness regulations. NATO STANAG 4671 and STANAG 4703 Airworthiness certification criteria are analyzed, and their applicability was proposed for future HALE UAV development. In addition, minimization of the risk for UAV is studied by considering probability of cumulative catastrophic failure for HALE UAV. This Hazard Risk Index can support the future UAV Airworthiness Certification Criteria.

TL;DR: In this paper, a case study of the airworthiness certification for the flight control system of tactical UAVs is presented, and safety assessment is performed Stall protection on wing level and turning flight criteria, and failure mode and effects test are also performed.

TL;DR: In this paper, the authors proposed an envelope protection algorithm for helicopters, which consists of two feedback control loops: inner loop and outer loop, which is designed to meet the ADS-33 handling qualities specification by minimizing the tracking errors between the responses of the actual model and those of the command filter.