This chapter examines the crucial role of impact simulation in evaluating the performance of polycarbonate in aeronautical and aerospace applications. Polycarbonates are known for their lightweight and durable properties, making them suitable for various aerospace components. The discussion covers simulation techniques like Finite Element Analysis (FEA), Discrete Element Method (DEM), and Computational Fluid Dynamics (CFD) specifically tailored for impact analysis. Case studies are used to explore the application of these simulations in scenarios such as bird strikes, hailstone impacts, and collisions on aerodynamic surfaces. The chapter also emphasizes the significance of experimental correlation and validation to ensure the accuracy of simulation results. Furthermore, it delves into optimization strategies for improving impact resistance through design modifications and material advancements. The challenges and limitations of impact simulation are addressed, and potential future trends such as the integration of machine learning and collaborative research initiatives are discussed. The chapter concludes by highlighting the regulatory considerations for impact resistance standards in aerospace applications, underscoring the importance of compliance and certification.