TRIMMABLE HORIZONTAL STABILIZER Flashcards
1
Q
How is the THS normally operated in flight?
A
The flight control computers control trim functions automatically
2
Q
If NO hydraulic power is available can the THS be positioned?
A
No - the THS requires hydraulic power from the Green or Yellow systems
3
Q
If a complete flight control computer failure occurs can the THS be positioned?
A
Yes, mechanical trimming is possible by manually positioning the Pitch Trim Wheel
4
Q
Can you move the PITCH trim wheel if all systems are working normally?
A
Manual inputs have priority over computer inputs. The autopilot will disconnect
5
Q
What happens to the THS when the aircraft enters to Ground Mode?
A
The trim automatically resets to zero (inside the green band)
