What does the term "deadweight" refer to in air transportation?

The term "deadweight" in air transportation refers to the difference between the maximum takeoff weight (MTOW) and the empty weight of the aircraft. This includes the total weight that the aircraft can safely carry, which encompasses passengers, cargo, fuel, and any additional equipment necessary for flight. Understanding deadweight is crucial for load planners, as it helps determine how much additional weight can be added to the aircraft while remaining within safety limits.

This concept directly ties into the operational efficiency and safety of air transport, as exceeding the deadweight can compromise flight performance and safety regulations. Knowing the deadweight allows planners to allocate the available weight capacity effectively to ensure that the aircraft operates within its designed limits.