Rebooting the engine

Amtrak Unlimited Discussion Forum

Help Support Amtrak Unlimited Discussion Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Status
Not open for further replies.
For what it's worth there's no real difference in accident rates between modern Boeing or Airbus aircraft. The only model of recent vintage (past 25 years or so) that's an outlier is the McDonnell Douglas MD-11, which is no longer in passenger service.

Nothing bigger than a 737 has true manual reversion anyway. If you lose the hydraulics, you're in big trouble.
 
The only model of recent vintage (past 25 years or so) that's an outlier is the McDonnell Douglas MD-11, which is no longer in passenger service..

Umm, KLM might disagree with you.

2069826.jpg


The Amsterdam-San Francisco flight is on an MD-11, I saw one on final landing approach to SFO just today afternoon.
 
Even if you loose total situational awareness, it seems difficult (in hindsight, naturally) to escape the feeling that you are basically falling out of the sky by pulling up on the stick. If anything, from an untrained perspective, seems like an instinctual move to try to keep the thing in the air when it is naturally pushing down to gain airspeed.
One of the speculations in the BAE report was that the loss of situational awareness may have included losing track of what mode the aircraft was in. Apparently when it is in Normal mode, an attempt to stall the aircraft would cause the system to take corrective action increasing engine rpm and disallowing the commanded nose up, thus actually recovering from the situation. However, the plane was not in Normal mode. it was in Alt 1 mode in which there is no safety envelope enforcement. They said this was just a speculation since they did not have any specific proof that this is what happened. Hence my original comment.

Anyway, this discussion is probably inappropriate for a discussion of rebooting rail locomotives, the failure of which is nowhere near as potentially disastrous as an aircraft critical flight system, which actually have triple or quadruple redundancy to work around failures. We got into this discussion because people veered off into the eternal A vs B pissing contest and some absurd claims about pilots taking apart computers and shuffling circuit boards. Very romantic indeed! :)
Yeah, these forums are not the place to discuss such issues... interesting, though, as always.

For what it's worth there's no real difference in accident rates between modern Boeing or Airbus aircraft. The only model of recent vintage (past 25 years or so) that's an outlier is the McDonnell Douglas MD-11, which is no longer in passenger service.

Nothing bigger than a 737 has true manual reversion anyway. If you lose the hydraulics, you're in big trouble.
The MD-11 is still in passenger service at KL, and will be until 2015 or so, last I remember reading. It is still in widespread use in cargo. It's still a safe airplane.
 
Status
Not open for further replies.
Back
Top