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>MCAS was introduced in order to simulate the same behavioral characteristics of the older 737s. Sounds plausible, but something with the story is still super
by cmurf 8y ago
>MCAS was introduced in order to simulate the same behavioral characteristics of the older 737s.
Sounds plausible, but something with the story is still super screwy because a nose down "push" every 15 seconds is nothing like older 737 approach to stall behavior. If the idea is you want the same stick forces at approach to stall as 737NG, then you need some kind of motor or brake in the yoke mechanics to simulate it on a MAX.
If it were really simulating the 737NG stick forces, and this were erroneously triggered in an appropriate angle of attack state, the pilot would simply be getting weird/unexpected control stick forces - rather than a fight to the death, possibly at low altitude.
And if that simulation were to fail when needed (real high angle of attack), well yeah you're fucked if it's a necessary simulation to help the pilot avoid a developed stall. But at least in that case I would expect even slightly delayed recovery from stall is a better scenario than forcing the nose down.
I just don't like this feature pretty much as designed when working, when it's disabled, and when it's confused. It all smells like bullshit. Now I could easily be wrong and it's actually duck farts. But something stinks. I don't see how it gets around either FAR 25 airworthiness certification requirements, because it can be disabled. Or around FAR 61.31 type rating requirement, because it can be disabled. Disable it, and now your airplane is not airworthy and your pilot possibly not suitably type rated? Come on.
- CaptainZapp 8y agoBut something stinks. I don't see how it gets around either FAR 25 airworthiness certification requirements, because it can be disabled. That's easy. When the manufacturer rubberstamps his own ariworthyness certification this is not really a problem. Disable it, and now your airplane is not airworthy and your pilot possibly not suitably type rated? That's the exact crux of the issue. Boeing panically wanted to avoid recertification of the plane and the pilots in order to be competitive with Airbus' A320 NEO.