PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 25th Nov 2019, 05:01
  #4144 (permalink)  
jimtx
 
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Originally Posted by AerocatS2A
The autopilot is a machine that will apply the required input to achieve the desired result. It doesn’t have expectations or past experience to fool it into doing the wrong thing. It doesn’t care if the “stick forces” change as it applies more elevator, it just does what needs to be done.
While humans can be fooled most competent pilots have been trained to ignore expectations or bodily sensations and control the aircraft by visual determination of attitude and performance to get the attitude and performance they desire. The MAX may have more problems than Boeing is attesting to but if it is only a non linear stick force/gradient at high g and AOA no competent pilot would not be able to compensate. If it is a more severe gradient that might allow you to pull up such as in a windshear escape maneuver and exceed the pitch attitude you wanted that might be a problem. If I am correct and the handling problem is a minor deviation from the Part 25 requirements in some rarely visited regimes then Boeing has let the tail wag the dog from day 1 and that dog ain't gonna stop wagging it's tail. We are just gonna have to say that's the dog waging it's tail and it's ok.
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