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> The MCAS system needs to step back to being an advisory-only system, just warning the pilots if it thinks a stall is immanent (and validate sensor inputs too)
by michelpp 7y ago
> The MCAS system needs to step back to being an advisory-only system, just warning the pilots if it thinks a stall is immanent (and validate sensor inputs too). Then we will need to have extensive pilot training to deal with the different flight characteristics in the 737 MAX.
There is already a stall warning alarm on all modern planes and have been for decades.
I've only flown Cessnas (which all have stall warning horns), but from what I've read the intention of the MCAS is to reproduce the "stick feel" of an older 737 at high angles of attack and high thrust.
The MAX is not "fly-by-wire" it has mechanical cable linkages from the stick to the control surfaces, forces are transmitted in both directions which the pilot can literally feel as resistance to control inputs. Boeing inadvertently changed the feeling of the airplane's response to the pilot. An older 737 would present much more resistance to pulling the plane harder into a stall, the MAX has less resistance. MCAS was intended to provide artificial resistance.
- ansible 7y ago> There is already a stall warning alarm on all modern planes and have been for decades. Yes, which by intentional design doesn't cover every situation you would encounter with the 737 MAX... because they wanted to make it more similar to the 737 NG. Which, I think we can agree, was a mistake.