4 ms·

I don't know the answer to 1 or 2, but regarding 3, if the issue in the reports via this article are the same issue, which it seems like they may be, then no I

I don't know the answer to 1 or 2, but regarding 3, if the issue in the reports via this article are the same issue, which it seems like they may be, then no I don't believe it poses a risk that can't be addressed through training. Through awareness these pilots and FOs filing reports seemed to know, at least through intuition if not outright knowledge of the new MCAS system, to disconnect the autopilot system when the nose goes down inappropriately. My question is, should the onus be on the pilots? Yes, they should know about it if they're going to be piloting an aircraft with it, but is this expected behavior? To me it seems more like a bug than expected behavior...why would you want to pitch downwards in a climb? I don't really understand defense of Boeing in any scenario. This seems like a mistake in any case, whether it's just lack of instruction or documentation in the relevant flight manuals, or an outright system failure.

aaaaaaaaaaab 8y ago
>why would you want to pitch downwards in a climb To avoid stalling?
- deleted 8y ago
  [deleted]
salawat 8y ago
>why would you want to pitch downwards in a climb? Because due to the different shape and position of the nacelles, there are aerodynamic effects that cause the plane to want to pitch up at high AoA. If you are already close to a stall condition, and you were caught unawares, bad times would be had. The major issue though is pilots were left to 'just figure this out' instead of being informed of the change. I have a feeling Boeing felt justified doing this because they pitched it as a "reconfiguration" of an old airframe, not warranting any explanation. As with any task I've attempted that involves deadly failure modes, this should have struck someone as being a terrible idea.
- kayfox 8y ago
  From what I have read, the NG series had the habit of pitching up under go-around conditions and this system exists because Boeing expected that issue to be more prevalent on the Max and also to try and solve it. So its not a new thing on the Max, its just expected to be more prominent.

aaaaaaaaaaab 8y ago

>why would you want to pitch downwards in a climb To avoid stalling?

deleted 8y ago
[deleted]

salawat 8y ago

>why would you want to pitch downwards in a climb? Because due to the different shape and position of the nacelles, there are aerodynamic effects that cause the plane to want to pitch up at high AoA. If you are already close to a stall condition, and you were caught unawares, bad times would be had. The major issue though is pilots were left to 'just figure this out' instead of being informed of the change. I have a feeling Boeing felt justified doing this because they pitched it as a "reconfiguration" of an old airframe, not warranting any explanation. As with any task I've attempted that involves deadly failure modes, this should have struck someone as being a terrible idea.

kayfox 8y ago
From what I have read, the NG series had the habit of pitching up under go-around conditions and this system exists because Boeing expected that issue to be more prevalent on the Max and also to try and solve it. So its not a new thing on the Max, its just expected to be more prominent.