Comment by WalterBright
1 day ago
Consider a case where the engine starts to violently vibrate. This can tear the structure apart. Delaying shutting off the engine can be catastrophic.
It's very hard to solve one problem without creating another. At some point, you just gotta trust the pilot.
If you read through the boeing procedures, if an engine fails just after take off you delay cutting throttle or hitting the cutoff until you have positive climb and pass a certain altitude. Specifically because a mistake here would be so incredibly catastrophic. The following number of steps and verbal cross checks for then shutting down the engine are quite daunting. Not something applicable here, but still interesting to learn about
That’s absolutely applicable here. It means that an engine cutoff shouldn’t be allowed at all during certain parts of flight. It’s not crazy to think that a design fix would be to prevent those engagements during certain parts of takeoff (a certain window). It’s fly by wire anyway so it could presumably be done programmatically.
MCAS was basically made to prevent user input that would send the plane into a dangerous angle. The computer overrode the inputs. So there’s precedent for something like it.
Do you mean the MCAS System that sent two planeloads of people to their deaths?
That MCAS system?
> The computer overrode the inputs.
This is incorrect. The manual stabilizer trim thumb switches override MCAS.
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This is such a funny comment. Of course you have no clue why it is funny. But that makes it all the more funny. Eventually you'll figure it out though.
Would it matter in this case since you would crash either ways. I’m talking about protection in a very specific situation where you make it harder to shut off both engines when you’re very close to the ground.
If the ground you are over is a good landing spot, your best chance is to cut off the fuel to that engine ASAP.
All I’m saying is in those situations it should involve another toggle or pedal that needs to be pushed to cut off the engines so it’s outside the realm of muscle memory.
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