Aces High Bulletin Board
General Forums => The O' Club => Topic started by: zack1234 on June 11, 2015, 01:48:49 AM
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So A400ms engines are controlled by software?
One crashed in spain because important files were deleted.
Are commercial planes engines controlled by software?
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So A400ms engines are controlled by software?
One crashed in spain because important files were deleted.
Are commercial planes engines controlled by software?
Virtually every modern engine is controlled by a software (FADEC (http://en.wikipedia.org/wiki/FADEC)) and also all of latest airliners flight controls controlled by a software (Fly By Wire).
And it already happens for a loooooooong time.
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If you have a car that's newer than 25 years old its engine is also "controlled by software."
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If you have a car that's newer than 25 years old its engine is also "controlled by software."
Car engines usually have fail safe defaults if sensors give illogical information. I wonder why thats not the same with airplane engines. Probably a bit more complex operating environment.
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My guess is the failsafes on something that if stalled can plummet 30000 feet are somewhat more sophisticated than something that can sputter to the side of the road
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Virtually every modern engine is controlled by a software (FADEC (http://en.wikipedia.org/wiki/FADEC)) and also all of latest airliners flight controls controlled by a software (Fly By Wire).
And it already happens for a loooooooong time.
Yes you are right but as you also probably already know, if the digital engine control fails, the fuel delivery reverts to a mechanical schedule.
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Car engines usually have fail safe defaults if sensors give illogical information. I wonder why thats not the same with airplane engines. Probably a bit more complex operating environment.
Properly installed equipment and software DOES have failsafes for bad (read: illogical) input.
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My truck has never crashed because of bad software inputs. However, at least TWO Airbus aircraft have.
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Shut up!
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My truck has never crashed because of bad software inputs. However, at least TWO Airbus aircraft have.
were you around when the japanese brake software was accentuating and crashing cars?
semp
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Car engines usually have fail safe defaults if sensors give illogical information. I wonder why thats not the same with airplane engines. Probably a bit more complex operating environment.
Aircraft engines usually have double to triple redundancy of the computers... But if software is wrong on all 2 or 3 of them. There is no way to help.
Now about mechanical failsafe - the problem is that jet engine fuel control unit is very complex stuff - it has many inputs that very the amount of fuel to put put into the engine: altitude, airspeed, pressure, temperature, rpm and their sudden changes and more...
Once there were hydro-mechanical computers that did the job and flameouts were much more frequent. Today digital system allow to run the engine in much more hard conditions - the conditions that older fuel control systems would fail.
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Aircraft engines usually have double to triple redundancy of the computers... But if software is wrong on all 2 or 3 of them. There is no way to help.
Now about mechanical failsafe - the problem is that jet engine fuel control unit is very complex stuff - it has many inputs that very the amount of fuel to put put into the engine: altitude, airspeed, pressure, temperature, rpm and their sudden changes and more...
Once there were hydro-mechanical computers that did the job and flameouts were much more frequent. Today digital system allow to run the engine in much more hard conditions - the conditions that older fuel control systems would fail.
Yeah thats what I thought. It's much easier to revert to defaults when you know you're going to be somewhere about sea level. But even then my car sputtered and jumped when cold when I had a broken MAF. Once it warmed up you hardly noticed the MAF was missing.