3 ms·
> the standard way to recover from the flight control computer triggering to much pitch was to flip a switch on the stick. Boeing made MCAS override that comman
by cesarb 7y ago
> the standard way to recover from the flight control computer triggering to much pitch was to flip a switch on the stick. Boeing made MCAS override that command, so the standard recovery could not work.
My understanding of this part was different. The standard way to recover is a pair of switches in the central part of the panel (not in the stick), which cuts off all power to the trim motors; these switches still work (though they work in slightly a different way than previous models). What MCAS overrides is a pair of sensors in the stick, which detect when the stick is being moved in the direction opposite to the electric trim, and in that case temporarily disable the trim motors; since MCAS by design moves the electric trim in the opposite direction that the pilot is moving the stick, it has to override these sensors, otherwise it couldn't do its job.
- olliej 7y agoAh, that seems entirely plausible (my misunderstanding I mean)