Imagine a realm where the digital replicas of reality offer us a new lens through which we can craft strategies, anticipate outcomes, and navigate uncertainties. Through simulation, we transform uncertainty into foresight, risk into opportunity, and complexity into clarity. By integrating the power of simulation into our strategic capacity planning, we unlock a realm of possibilities that can revolutionize the way we approach production capacity. This talk will delve into an application of simulation to supplement the strategic capacity-building process, delving into how simulation can give a new perspective on the way aircraft production facilities approach capacity planning. This journey of strategic simulation is not just about understanding what lies ahead—it's about exploring, experimenting, and shaping the future before it unfolds. When we combine strategy simulation with scenario planning, a canvas emerges where we can paint the outcomes of our decisions even before we commit to a particular path. By exploring advanced modelling techniques, integrating real-time data, leveraging optimization algorithms, incorporating virtual and augmented reality, employing machine learning and artificial intelligence, fostering collaboration, and addressing sustainability considerations, the effectiveness and applicability of simulation for strategic planning can be greatly enhanced, leading to improved decision-making and performance in the aircraft production industry.