Nacelle not lift
MAX...
Nacelles disturb airflow, reducing lift. Reducing Lift decreases alphaSTALL
When A/C is trimmed, engines increase Pitch on their own.
This is PITCH Divergent.
This Power/Pitch couple increases PITCH RATE as Pitch increases.
MCAS lowers AoA incrementally. It moves at a steady rate, by definition it does not follow actual AoA as it (AoA) increases autonomously. It lags. It is good for ONE input only, in ten seconds.
By definition, MCAS does not function in unison with divergent Pitch. .... (IMO). If it did, well that's Airbus
As MCAS removes it's ND trim (~2.7 degrees), it lowers STALL AoA . What an unwelcome surprise when actual STALL meets cycling ND Trim.
DeFacto accelerated STALL? How does MCAS muddy up Stall entry/recovery?
NO WONDER BOEING wanted no part of a waiver.
Maybe the reason Boeing withheld some test data from FAA then badgered them for expedited approval?
Last edited by T28B; 8th August 2024 at 21:07.
Reason: Bold text not necessary