Speedbrakes/Spoilers

Question 1

Is there any landing configuration when speed brake extension is inhibited?

Answer 1

Flaps FULL

Question 2

When do the ground spoilers automatically extend?

Answer 2

Partial - When reverse thrust is selected on at least one engine with the other at idle and one main landing gear strut is compressed
Full - At touchdown of both main gear, or in case of RTO with airspeed above 72 knots, when both thrust levers at IDLE (if ground spoilers armed) or when reverse thrust is selected on at least one engine with the other thrust lever at IDLE (if the ground spoilers are not armed)

Question 3

At touchdown, with reverse selected and only one landing gear strut compressed, will the ground spoilers extend?

Answer 3

Partially - Full extension is limited until both main gear struts are compressed

Question 4

When will the ground spoilers automatically retract?

Answer 4

When at least one thrust lever is advanced above IDLE

Question 5

When is speed brake extension inhibited (SAFET)?

Answer 5

SEC 1 and 3 have failed
AOA protection is active
Flaps FULL
Elevator (L or R) fault (only spoilers 3 and 4 are inhibited)
Thrust levers above the MCT position

Question 6

In flight, what happens if a spoiler fault is detected or electrical power is lost?

Answer 6

The spoiler automatically retracts

Question 7

What is the difference between the A321 and A320 regarding speed brake usage with the AP on?

Answer 7

With the A321 you get full spoiler deflection and with the A320 you only get partial spoiler deflection