How is traffic load calculated in aviation?

Traffic load in aviation is calculated by subtracting the dead operational mass (DOM) from the zero fuel mass (ZFM). This calculation helps determine how much additional weight, such as passengers, cargo, and fuel, can be accommodated within the aircraft’s weight limits.

The zero fuel mass refers to the aircraft's weight without fuel, while the dead operational mass includes the basic operating weight of the aircraft plus the operational items like crew, equipment, and any fixed items on board. By taking the zero fuel mass and removing the dead operational mass, you arrive at the traffic load, which signifies the maximum allowable payload that can be safely transported.

This understanding is crucial for effective load planning and ensuring that the aircraft operates within its performance limits, maintaining safety and efficiency in operations.