Automatización de las interacciones con el entorno de guiado de X-Plane y estimación de los coeficientes de resistencia aerodinámica dentro del simulador.

Flight simulators represent a very useful tool in aircraft research and design, helping to predict the behavior of airplanes in certain situations. In this project, the X-Plane 11 ¿ight simulator and the Boeing 738 aircraft will be analyzed. The ¿rst part is an analysis of the descent modes and a description of how to apply them on the plane. The second part explains how to establish communication with the simulator either via Plugin or via an external program. This greatly facilitates the extraction and use of data. In this case, it has been decided to develop communication through an external program, speci¿cally via UDP. This method is the most indicated to meet the goal of this project. The last part is dedicated to approximate the unknown parameters within the simulator, by simulating multiple trajectories, using the tools developed in the previous parts. These parameters are the energy share factor (ESF), the drag coef¿cient in a zero lift situation, and the lift-induced drag coef¿cient. To obtain these values, the airplane routes have ¿rst been designed to be able to obtain all the possible information, then the data from these routes have been extracted and ¿nally, the least squares method has been applied. This has resulted in a model that is quite close to the one observed within the simulator.