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Why does the Max 8 have such unusual stall characteristics compared with other similar twin engine jets?  

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Hello,  There are many twin engine passenger aircraft that are similar in design to the Boeing Max 8, yet the Boeing aircraft appears to have some unusual stall characteristics needing the intervention of the MCAS system.  Can you explain what is fundamentally different from the Max 8 when compare with the equivalent Airbus aircraft with similar engines?  Thank you.

John Gapp

Correct me, if I am wrong. But as I understand it, the only airplane in the 737-series with MCAS implemented is the MAX8. It was introduced to give the pilots the same feeling of flying the 737NG even though the aerodynamics was changed due to new, larger engines. But I am in doubt if MCAS is active all the time or only kicks in under high angle of attack.

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