Hydraulics Flashcards
1
Q
If you lose all DC power, what happens to Speed Brakes if they were extended?
A
They would blow to trail
Reason: Safety valves spring open, releasing hydraulic pressure instantly, allowing aerodynamic forces to push speed brakes closed to maintain aerodynamic stability.
2
Q
If you lose all DC power, what happens to Flaps if they were extended?
A
Remain locked in their current position.
No safety valve; hydraulic fluid remains trapped (hydraulic lock), holding flaps firmly in place. Minimal aerodynamic force prevents unintended flap movement.
3
Q
If you had a Hydraulic issue and had flaps extended what could/would you do?
A
Electrically operated, so I can just move the flaps back to 0 and they would partially retract due to airload.
