Gautier Hattenberger is an assistant-professor at the French Civil Aviation University (ENAC) in Toulouse, France. As a member of the UAV Research Program, he is working on flight dynamics and control of micro-UAVs, modeling and simulation, architecture of embedded systems, trajectory planing and formation flight. Most of his work is based on the Open-Source UAV system “Paparazzi”, for which he is now one of the head developer. He graduate from the French national engineering school of aeronautical construction in 2004 and received his Ph.D Degree at the Robotic department of the Laboratory for Analysis and Architecture of Systems (LAAS-CNRS, Toulouse), for his work on formation flight control and planing of UAVs in 2008.