In the context of aviation safety, which position is typically referred to as the First Officer?

The term "First Officer" in aviation safety refers specifically to the co-pilot of an aircraft. The First Officer serves alongside the Pilot in Command and is responsible for assisting with the operation of the aircraft, including navigation, communication, and other critical tasks during flight. This role is essential for the safety and efficiency of a flight, as it allows for shared responsibilities and support during demanding operational situations.

In contrast, the other positions mentioned have distinct roles that do not align with the duties of a First Officer. The Pilot in Command is responsible for the overall operation and safety of the flight, while the Flight Engineer, if present, is focused on monitoring and operating the aircraft's propulsion and systems. Ground crew pertains to personnel who handle operations on the ground, such as maintenance, loading, and fueling, rather than in-flight responsibilities. Thus, identifying the First Officer as the co-pilot is integral to understanding the structure of aviation teams and their roles in ensuring safe flight operations.