PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 23rd Jun 2019, 22:59
  #590 (permalink)  
ARealTimTuffy
 
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Sorry Smthye but you are incorrect.

Unless we have been lied to, the Max does not have an absolute pitch up tendency at high AOA. The RATE OF CHANGE of force of back pressure must be linear within the flight envelop and slightly beyond.

MCAS was created because the RATE OF CHANGE did not meet the requirements. You still need additional back pressure to pull into a higher AOA but the increase in force is not linear. It is the same as the difference between velocity and acceleration. You can be going faster and faster velocity but your rate of acceleration can be slowing down. Rate of change.

The aircraft does not continue to pitch up if relaxing aft control input.

It is not applicable to the autopilot because the autopilot will do what it does regardless of the “feel” on the stick.

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