• Normal operation: Captain and First Officer inputs are algebrically summed.
• Autopilot disconnect pushbutton is used at take-over button.
• Last pilot who depressed and holds take-over button has priority; other
pilot’s inputs ignored.
• Priority annunciation:
- in front of each pilot on glareshield - ECAM message
- audio warning.
• Normal control restored when both buttons are released.
• Jammed sidestick:
- priority automatically latched after 30 seconds
- priority reset by depressing take-over button on previously jammed
sidestick.
There's also a side-stick priority display on each side showing whether the opposite side is using the take-over button.
