>Pilots increase throttle as per non-normal checklist to reduce the risk of stalling due to unreliable airspeed. Pilots disable electric stabilizer trim, as per

>Pilots increase throttle as per non-normal checklist to reduce the risk of stalling due to unreliable airspeed. Pilots disable electric stabilizer trim, as per Boeing's advice, without trimming back to neutral trim. Pilots likely started to trim up with the manual trim wheels, but that's very slow, and gets harder as airspeed increases. I can see that at extreme trim and high speed that it could be difficult to manually trim. What I don't see is how MCAS puts you into that situation. MCAS is supposed to be limited to 2.5 degrees (out of the ~17 degree range) change every 10 seconds. So if you identify a MCAS issue and hit the trim switch, you should still be in a relatively normal flying envelope. I find it hard to believe that manual trim is impossible then. It would have to be a monumental design flaw. In the specific case of the Ethiopian flight, unless I'm mistaken they went through at least a couple cycles of MCAS -> Pilot Correction -> MCAS. Even if they timed their cutoff switch to the end of the MCAS cycle they should only be 2.5 degrees off where they wanted. I would be surprised if that position wouldn't be level flight let alone a situation where they can't manually trim. I wonder if there is a second issue cropping up. The Lion Air crash saw a similar cycle of MCAS -> Pilot Correction -> MCAS that eventually stopped.