Which weight category includes both payload and fuel to define the maximum weight of the aircraft?

The category that encompasses both payload and fuel to define the maximum weight of the aircraft is commonly referred to as maximum take-off weight. This is the total weight of the aircraft at the moment it begins its flight, which includes the aircraft's operating weight along with its cargo and fuel.

Maximum zero fuel weight is actually a limitation that refers to the maximum weight of the aircraft without any usable fuel. It is intended to prevent structural damage to the aircraft during flight and landing when it has not taken on fuel. Thus, it does not accommodate the weight of the fuel, making it a distinct category focused solely on payload.

In contrast, maximum take-off weight represents the total mass the aircraft can handle for a departure, ensuring optimal safety and performance during the flight. It is crucial for pilots and aviation operations to remain aware of these weight limitations to guarantee compliance with safety regulations and maintain the integrity of the aircraft throughout its journey.