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Old 6th May 2019, 06:11
  #119 (permalink)  
fdr
 
Join Date: Jun 2001
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Originally Posted by Smythe
I suppose, stick force/feel, but then again, doesnt seem like it matters, push it/pull it, MCAS simply pushes the nose down 2.5 degrees with stab trim.
J
er, nope, it doesn't do that. It may be semantics but the 2.5 degrees is not an attitude value, it is the shift of the trimmable horizontal stabiliser, THS by a maximum value of 2.5 degrees Aircraft Nose Down, AND, which is stabiliser leading edge up. [corrected for error]which will give whatever to the aircraft attitude, dependent on what the driver does on the control column. MCAS is an input for control force, it is not a pitch attitude adjusting system, of course left unchecked it apparently is good for about 40 degrees nose down...

Last edited by fdr; 6th May 2019 at 16:37. Reason: corrected THS sense for error...
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