Of every aircraft I know, there is either one set of flight controls if it is single-pilot operated, or two sets of flight controls allowing either the pilot or copilot full control.
Has there ever been an aircraft that has three or more sets of flight controls?
- "aircraft" includes fixed-wing, helicopter, powered lift etc.
- remotely operated aircraft does not count
- A set of flight control consist of yokes, pedals and/or sticks that allows the operator to manipulate the pitch, roll and yaw axis