The purpose of this work is the description of the implementation of a real-time flight simulation model of the Bell Aircraft Corporation XV-15 Tilt-Rotor Research Aircraft. The model is developed in the Matlab/Simulink environment and integrated with the ReDSim of the ZAV Centre for Aviation at ZHAW, Zurich University of Applied Sciences, in Winterthur, Switzerland, a research and development flight simulator employed for both educational and industrial applications. All the activities described were carried out by the author as part of her Exchange Project at ZHAW, from October 2019 to February 2020. The first part of the author's work has been focused mainly on reviewing and debugging the XV-15 rotor model, in terms of both its mathematical formulation and its implementation in the Simulink environment.