Effect of Rear Propeller, Canard, and Center of Gravity on Longitudinal Stability of High Altitude Long Endurance UAV flower-like Morphologies

The application of HALE (High Altitude Long Endurance) UAV (Unmanned Aerial Vehicle) to address the challenge of 3D (Dull, Dirty, Dangerous) missions has received a considerable attention from many researchers and aircraft developers. To fulfill the challenge of its mission, the UAV must be designed to have high efficiency aerodynamic and propulsion system with a lightweight structure. The position of propeller in an above-wing-mounted engine plays a vital role in providing efficient aerodynamic and propulsion. The use of ANSYS 15.0 software to simulate interaction between wing platform and propeller position on HALE UAV flight condition can determine the most appropriate propeller position in terms of aerodynamic and propulsion efficiency. The simulation result will give comparison of aerodynamic characteristic of interaction between wing platform and various propeller position and therefore the most appropriate propeller position.