How does the gross weight during cruise affect the performance of the airplane?

The gross weight during cruise significantly affects the performance of the aircraft, particularly influencing the required flight paths. As the gross weight increases, the aircraft requires a higher angle of attack to maintain level flight, which can affect the climb performance and the overall aerodynamic efficiency. This may necessitate different flight paths to ensure safe and efficient operations, especially when considering factors such as terrain, weather, and any specific airspace restrictions.

Managing weight is crucial as it also impacts the aircraft's ability to climb, its speed, and the amount of lift generated by the wings. Consequently, adjustments in flight paths are often required to compensate for the changes in performance that come with varying gross weights. This understanding is essential for effective flight planning and operational safety, ensuring that the aircraft operates within its performance limits.