and Historical Background -- The PVTOL Aircraft -- The Quad-rotor Rotorcraft -- Robust Prediction-based Control for Unstable Delay Systems -- Modelling and Control of Mini-helicopters -- Helicopter in a Vertical Flying Stand -- Modelling and Control of a Tandem-Wing Tail-Sitter UAV -- Modelling and Control of Small Autonomous Airships -- Sensors, Modems and Microcontrollers for UAVs.Problems in…