What happens when the roll disc handle is pulled?

What happens when the roll disc handle is pulled?

• A. Captain controls: Left aileron
• B. Captain controls: Right aileron
• C. FO controls: Left aileron
• D. FO controls: Right aileron

Answer: (A)

Roll control authority is being assigned to the Captain when the roll disc handle is pulled. This action links the Captain’s roll input directly to the flight-control surfaces, so the Captain controls the left aileron. The mechanism is designed to let one pilot take direct roll control, which is why the correct outcome is that the Captain handles the left aileron. The other possibilities would occur if control were assigned to the FO or if different surfaces were involved, which isn’t the case when the disc is pulled.

Roll control authority is being assigned to the Captain when the roll disc handle is pulled. This action links the Captain’s roll input directly to the flight-control surfaces, so the Captain controls the left aileron. The mechanism is designed to let one pilot take direct roll control, which is why the correct outcome is that the Captain handles the left aileron. The other possibilities would occur if control were assigned to the FO or if different surfaces were involved, which isn’t the case when the disc is pulled.