One more time, an incident, as it happened in HAM, can bring questions on the Airbus technical options.
I can see a serious issue with that roll rate demand coupled to the side sticks the way Airbus opted to implement them :
- The PF has no way to evaluate the amount of deflection on the flight control surfaces in relation to his own side stick displacement.
- The PM has no way to know what the PF request is.
- And now on top of it we learn that the flight controls deflection can be suddenly reduced by 50%
Too much unknown, too much guessing.
What about keeping things simple ?- Linked side sticks to keep the PM in the loop
- Direct law to keep both PF and PM in that same loop
It doesn’t matter above 1000 feet but for a crew, there is a waste of valuable information when things heat up close to the ground.
HAM is remarquable on that regard.