How does auto braking function on landing and when might a pilot choose manual braking?

• A. Auto braking applies a programmed deceleration profile; manual braking is used if auto brake is unavailable, insufficient, or for non-standard landing situations.
• B. Auto braking is optional and manual braking is always preferred.
• C. Auto braking is a backup to manual braking and only used in emergencies.
• D. Auto braking uses pilot input to manage deceleration.

Answer: (A)

Autobrake provides a controlled, automatic deceleration during landing by applying brakes according to a preselected profile, which gives a smooth rollout and reduces the pilot’s workload. Before landing, you set a deceleration level, and once weight on wheels is sensed, the autobrake engages to achieve that target; the crew can still monitor and intervene if needed. Manual braking is used when the autobrake system is unavailable or faulty, when the runway or conditions require more aggressive or tailored deceleration than the autobrake can provide, or in non-standard landing situations where the pilot prefers direct control. Autobrake isn’t just for emergencies—it’s a standard option that handles routine landings, with the ability for the pilot to take over at any time.