Re:How the Boeing 737 Max disaster looks to a software devel...
by mopsi on Monday February 07, 2022 @07:59AM
(#30244199)
> That intermittent vs continuous NEVER was part of the discussions about runaway trim. I don't know where that notion comes from. It doesn't make any sense.
It makes perfect sense, because continuous operation identifies a fault condition. Under normal conditions, automatic systems may intermittently move the stabilizer, but never continuously. It may be faulty when moving on its own, but if it moves continuously without input, it's definitely faulty. That's where the name cames from: runs away into physical stops.
It comes from Boeing's checklists: https://i.stack.imgur.com/cRG4J.jpg
It makes perfect sense, because continuous operation identifies a fault condition. Under normal conditions, automatic systems may intermittently move the stabilizer, but never continuously. It may be faulty when moving on its own, but if it moves continuously without input, it's definitely faulty. That's where the name cames from: runs away into physical stops.