Which title is commonly worn by the First Officer (FO) in the cockpit?

The title commonly worn by the First Officer in the cockpit is represented by three stripes on the uniform. This insignia indicates the rank of the First Officer, who is typically the second-in-command on the flight. The uniform insignia system is standardized across many airlines to clearly differentiate between ranks and roles within the cockpit crew.

Four stripes on a uniform usually signify the rank of a Captain, who holds ultimate responsibility for the aircraft and crew. No insignia or no stripes generally indicate that an individual is a new hire or trainee who is not yet qualified for any specific role, and two stripes would typically indicate a rank that is not standard for First Officers. Therefore, the three stripes symbolize the First Officer’s rank within the aviation hierarchy, aligning with industry standards and practices.