Originally Posted by
Rob21
Do you know how many hand inputs from the pilot will take to complete one turn? Three, four? Supposing the answer is three, the pilot will have to make 44 hand movements to change one degree. If the pilot is able to execute one turn in 4 seconds (fast), a change of only one degree will take 59 seconds, or one degree per minute.
Not enough time to recover from a dive. If my math is correct, the only way to counteract MCAS input is with electric trim. But if you need to cut off trim motors to "kill" MCAS, how the pilot will manually turn the trim wheel to achieve enough amplitude to cancel MCAS inputs?
The key, as stated by
Ranrair, (which see above) is to react immediately, before the trim gets beyond the point where the only functioning control is the mechanical trim wheel & cable drum.
The problem is, as has been stated by many now, MCAS actions mask what is essentially a runway-by-increments stabilizer, and there was no training or FCOM information for pilots to assess the behaviour of the system for themselves and when faced with heavier control column and UAS + #1 stall warning right after liftoff, tried to diagnose the problem without the necessary tools and experience to do so, costing valuable response time.