File:20241108 Cahier de charge FCU VTOL V2.pdf

This specification defines the Flight Control Unit (FCU) for a hybrid multicopter, powered by a single piston engine driving electric generation, with around 60 fixed-pitch rotors. Target applications are light air ambulance, tourism, and pilot training, with CS 27 or EASA VTOL certification. Lacking a second engine, the aircraft carries a rescue parachute for total engine failure. The pilot commands via a right-hand joystick (pitch, roll, yaw). The core of the document covers nine flight cases: manual takeoff, hover (stop button), vertical climb/descent, yaw rotation, straight-line forward flight, turns, climbing/descending turns, emergency stop with parachute, and final ground shutdown. Each case defines inputs, outputs, and rules. The FCU continuously monitors gyroscopes, accelerometers, and barometers to distribute power, stabilize the aircraft, and generate alerts. Dynamic power management prevents motor overload during transitions. The testing, maintenance, and budget sections remain to be completed. Reference projects: Mini-Bee