What is the primary function of the flight engineer on multi-crew aircraft?

The primary function of the flight engineer on multi-crew aircraft is to monitor and manage aircraft systems and assist pilots in flight operations. This role is crucial in ensuring that all systems are functioning optimally throughout the flight, as the flight engineer is responsible for monitoring instruments and systems, making necessary adjustments, and providing the pilots with pertinent information.

By assisting the pilots, the flight engineer contributes to maintaining safety and efficiency during operations, especially in complex multi-crew environments where the pilot and co-pilot can rely on the flight engineer's expertise to focus on flying the aircraft and managing navigation. The flight engineer's knowledge of aircraft systems enables them to detect anomalies or failures and respond effectively, ensuring a smooth and safe flight experience.