If you don't take mitigating actions within a time window of a few seconds, you are locked into an unrecoverable situation - however long you might fight it afterwards.
Specifically - the trim wheel is too stiff to correct if the stabilizer is loaded, so if the MCAS is allowed to wind the stabilizer to its extreme position, the pilot must - after disabling the MCAS (and therefore also the electric trim) - unload the control column to correct the situation, which will send the aircraft straight into the ground. Hence the undulations seen in the flight paths of the crashed aircraft.
The MCAS was designed under the assumption that pilots would respond to unexpected activation within 3 seconds:
The Seattle Times hasn't a good track record of accurately reporting the facts on aviation stories. Their aviation reporter does not read or comprehend his cited sources.
The EA crew dealt with the situation for 5 minutes, the LA crew for 25 minutes. Both crews used the electric trim switches to restore normal trim, multiple times. The trim switches are on the control column right under one's thumb. All the reports saying it was impossible or unreasonable or there wasn't enough time to do this are false, as both crews did it.
I strongly recommend a more reputable source, like Aviation Week 19-Sep-2019. Also an original source,
There's also an often-cited article going around that's written by a Cessna pilot. His opinions on how jet aircraft should be designed have little to do with reality - high altitude high speed jets are very, very different from a low and slow Cessna. (The Air Force thought it would be easy to transition their experienced propeller pilots to jets. A lot of crashes and dead pilots changed their minds.)
That's not what I said.
If you don't take mitigating actions within a time window of a few seconds, you are locked into an unrecoverable situation - however long you might fight it afterwards.
Specifically - the trim wheel is too stiff to correct if the stabilizer is loaded, so if the MCAS is allowed to wind the stabilizer to its extreme position, the pilot must - after disabling the MCAS (and therefore also the electric trim) - unload the control column to correct the situation, which will send the aircraft straight into the ground. Hence the undulations seen in the flight paths of the crashed aircraft.
The MCAS was designed under the assumption that pilots would respond to unexpected activation within 3 seconds:
https://www.seattletimes.com/seattle-news/times-watchdog/the...