Electric vertical takeoff and landing (eVTOL) aircraft promise an efficient aviation transportation system, meeting the emerging need for urban air mobility. The development of any technology for improvement comes with notable challenges, often stemming from complexities in design, implementation, and adaptation to specific requirements. The development of eVTOL aircraft similarly poses significant challenges from the concept stage to reality. Each phase consists of its own obstacles that hinder the pace of growth. Focusing on the software aspect, the development of the flight control system for such an aircraft brings numerous safety issues that must be addressed from the beginning. This safety-critical software is responsible for several critical actions, including autopilot flight and emergency actions during failure conditions. This paper focuses on the development of nonlinear flight controller software for a lift-to-cruise eVTOL. The research showcases the progress of the software development process following the DO-178C/DO-331 standards, along with simulation results such as software unit testing including the software-in-the-loop and processor-in-the-loop simulation results. In addition to the verification results, the paper covers important aspects of the process standards, such as requirements formulation and improvement in the software architecture.    «

Electric vertical takeoff and landing (eVTOL) aircraft promise an efficient aviation transportation system, meeting the emerging need for urban air mobility. The development of any technology for improvement comes with notable challenges, often stemming from complexities in design, implementation, and adaptation to specific requirements. The development of eVTOL aircraft similarly poses significant challenges from the concept stage to reality. Each phase consists of its own obstacles that hinder...    »