Question: The Radio Operator & Air Gunner's Badge, is a commonly accepted title for the German title, translated into English,Combined Air Gunner, Radio Operator and Flight Engineer Badge, it was a German military decoration awarded to radio operators, air gunners and mechanics (flight engineers) who were members of the German Air Force, translated into what in German, a flight engineer (FE), also sometimes called an air engineer, is the member of an aircraft's flight crew who monitors and operates its complex aircraft systems?
Sentence (from "Radio Operator Badge"): It was a German military decoration awarded to radio operators, air gunners and mechanics (flight engineers) who were members of the German Air Force (Luftwaffe) after they completed two months training or had taken part in at least five operational flights.
Relevant evidence: No