Which of the following statements about aircraft weight is incorrect?

The statement regarding gross weight that indicates it includes only passengers is incorrect because gross weight actually encompasses the total weight of the aircraft, including passengers, cargo, fuel, and any other items on board. In aviation terminology, gross weight refers to the maximum weight of an aircraft at any given time during its operation, which is a critical factor in ensuring the safety and performance of the aircraft.

Payload is indeed a component of gross weight, as it refers to the passengers and cargo being carried. All cargo impacts the gross weight, as every item loaded onto the aircraft adds to the overall weight. Additionally, total moments, which involve the distribution of weight throughout the aircraft, are essential for maintaining proper weight and balance for safe flight operations. Thus, understanding the components of gross weight is crucial for pilots and crew in managing the aircraft's performance efficiently.