In this article, the trend of UAV design using the AerSim software is first described then, different design steps of the autopilot program and the algorithms control tests using software -in-the-loop test in used for choosing the best control methods. In the next step, using the hardware-in-the-loop test, the auto-pilot program is validated. Finally, the flight test results & a real UAV is presented for comparison purpose. Sinse this control algorithm has been designed for a non-linear model aircraft considering the atmospheric noise, the results match well will real data and thus cause considerable decrease in real life tests.

In recent years, design of small aircrafts are studied and extensively developed. One of the most important of these aircrafts is micro aerial vehicles (MAVs). As part of aerodynamic design of MAVs, the wing design is important. In fact, the main part of this design is to find an appropriate shape for the wing. In this work, influence of the wing shape at low Reynolds number flow is investigated using several planforms. Results show that as aspect ratio decreases, the lift-curve slope decreases as predicted by aerodynamic theory. The performance of the inverse Zimmerman and rectangular planforms are higher than elliptic and Zimmerman planforms. Also, the inverse Zimmerman planform is less influenced with the side flow. Effects of the Reynolds number and the wing edges on aerodynamic coefficients are discussed. The CFD computations are performed, and verified with the experimental data and aerodynamic theory.