Originally Posted by M2002
Mechanical back up is not a control law, it is just a mechanical back up.
Still listed as the last level of reconfiguration :
Depending on the type of failures affecting the flight control system, or its peripherals, there are 3 possible reconfiguration levels:
- Alternate law (ALT 1 or ALT 2)
- Direct law
- Mechanical
As you already evaluate Direct Law at risk, how would you feel under Mechanical then ... ?
I find it surprising you widely comment on Direct Law as being dangerous or at risk but don't comment on the very subject of the present thread which is :
"Under normal flight conditions (in normal law), if the Alpha Prot activates and Mach number increases, the flight control laws order a pitch down of the aeroplane that the flight crew may not be able to counteract with a sidestick deflection, even in the full backward position."
Here we have the 'dangerous' one ... IMO of course.