Ram Air Turbine (RAT)

The Ram Air Turbine (RAT) is an auxiliary power unit that activates during emergency situations on aircraft to generate electricity.

^{Ram Air Türbin (}Cdnreport⁾

Under normal conditions, the aircraft’s electrical needs are met by the engines. However, in the event that both engines fail simultaneously, the Ram Air Turbine performs this function at a basic level. The RAT generates power from the airflow relative to the aircraft’s speed and is connected to an electric generator or a hydraulic pump. It is located either in the fuselage or on the wing, depending on the aircraft model. During emergencies, it is activated automatically or by the pilots, providing power to systems essential for flight operations.

In general, modern aircraft use the RAT only during emergencies: in the event of a loss of hydraulic systems or a loss of primary electrical power sources. In these situations, the RAT supplies power to critical systems such as flight controls and vital instrumentation, navigation, and communication equipment.

^{Ram Air Turbine (}Prd⁾