Originally Posted by
mahendru1992
Thanks for the reply! Just one question
If ELAC 1 (and by extension the blue hydraulics) responsible for the left aileron fails, then ELAC 2 would end up controlling the right aileron using the blue hydraulic jack. Correct?
If that's the case then how is this possible? Since the blue hydraulics already failed when ELAC 1 failed. Or do the blue hydraulics for both the left and right aileron act independently of each other?
How many failures are you talking about? Do you have only ELAC1 failure or BOTH ELAC1 AND Blue HS failure? Or just Blue HS failure?
- In the first case (ELAC1 failed), ELAC2 will control left aileron using Green HS and right ailerone using Blue HS.
- In the second case (ELAC1 and Blue HS failed), ELAC2 will control left ailerone using Green HS and right ailerone will switch to damping mode (that means that ailerone will be slowly moved by aerodynamic forces and jack will follows surface movement)
- in the 3rd case (Blue HS failed), left ailerone will switch to damping mode and ELAC1 will control right ailerone using Green HS.