Originally Posted by
TTT0521
Hey guys
I have a question about fuel penalty of Aileron.
In the case of ELAC 1 or 2 or 1＋2 fault, ECAM says that we need to apply fuel penalty factor table.
And explanation is FUEL CONSUMPT INCRSD appears when the failure (or combination of failures) affects the nominal aerodynamic characteristics of the aircraft.
But FCOM says that if Aileron fails, then damping mode will active.
Damping mode doesn’t make any fuel penalty. Is that right?
And if it is correct, the penalty factor table is used only in the case of damping mode doesn’t work correctly.
Then if airbus consider that case, why there are no fuel penalty table for Elevator?
I feel little bit contradiction and I thought I misunderstanding something.
Thanks
Elevators move together. In case of dual hydraulic failures one side may be frozen. The fuel penalty factor for dual hydraulic failure includes one side elevator jam.