When calculating the total weight of an aircraft, which factor is not included?

The calculation of an aircraft's total weight typically includes various components such as fuel weight, cargo weight, and the weight of components and systems within the aircraft. These weights are essential for determining performance metrics, including takeoff, landing, and fuel efficiency.

Weather conditions, on the other hand, are not a physical attribute of the aircraft itself and thus do not contribute to its total weight. While weather may significantly affect flight operations, including how the aircraft behaves in flight, it does not impact the static weight of the aircraft as measured on the ground. Understanding this distinction is crucial for aviation maintenance and operations, as accurate weight calculations are critical for safe aircraft operation.