PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures Mk II
Old 24th Dec 2019, 14:51
  #224 (permalink)  
Join Date: Jan 2004
Location: Far West Wessex
Posts: 2,549
MCAS can be shown to be very logical.

But regardless of the parameters that activate it, and the absence of any intuitive means to inhibit a false activation, it still seems strange to invoke the most powerful effector on the airplane as a means to adjust stick force. What happened to springs and variable linkages?

Also, let's not forget that MCAS became lethal when its authority was increased to deal with a second, lower-speed-range issue of non-linear force-to-alpha relationship. That's where someone needs to look at the "naked" characteristics - because MCAS 2.0 is more easily inhibited, increasing the chance that a MAX will enter that corner of the envelope unprotected.
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