What is the function of a baffle plate in a fuel tank?

A baffle plate in a fuel tank plays a crucial role in preventing fuel surging. Surging can occur during maneuvers such as turning, climbing, or descending, which may cause fuel to slosh around inside the tank. This movement can lead to imbalances and affect the aircraft's performance and handling. The baffle plate reduces the free movement of fuel by physically dividing the tank into sections, allowing fuel to move more predictably and minimizing the risk of surge-related issues.

While maintaining fuel temperature, ensuring accurate fuel measurement, and protecting against fuel leaks are important functions in a fuel system, they are not primarily the role of a baffle plate. Instead, baffle plates are specifically designed to stabilize the fuel within the tank and improve the overall safety and efficiency of fuel management in the aircraft.