1 definition by apilot

Airline First Officer (Co-Pilot).Works in concert with the Captain in performing the duties required to operate an airplane safely on the ground and in the air. Typically a younger (less senior), less experienced pilot, but nonetheless a competent professional. Flies the airplane from the right whereas the Captain sits in the left seat.
The FO flew the leg from LAX to JFK.
by apilot April 18, 2007
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