Which of the following best defines Gross Weight?

The concept of Gross Weight is essential in aviation as it encompasses the total weight of an aircraft at a specific moment. This includes not only the structure of the aircraft itself but also all components necessary for operation. Specifically, Gross Weight is defined as the total weight of the aircraft when it is fully loaded, which means it includes the aircraft's empty weight along with the fuel, cargo, and the weight of passengers and crew.

Understanding Gross Weight is critical for various operational and safety considerations, such as takeoff, landing, and flight performance calculations. Pilots and operators must maintain awareness of this weight to ensure that the aircraft operates within its designated limits, which can affect stability, control, and overall performance during flight.

The other definitions do not capture the full scope of what Gross Weight entails. For instance, the first option only considers the aircraft's weight without cargo, which does not reflect the operational reality. The second option suggests weight "when fully loaded," but it is somewhat vague without clarifying that this also includes all contents. The last choice narrows the definition down to just the passengers and crew, excluding crucial elements such as fuel and cargo. Hence, the comprehensive definition is best captured by stating that Gross Weight includes all aspects of the aircraft’s load