[modeleng] Re: Fw: airbus cockpit 380 360 view
- From: The Sheppard Residence <psbr20252@xxxxxxxxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Mon, 03 Nov 2008 20:32:11 +0000
As a safety engineer I take great interest in these sort of incidents.
The problem was that the designers hadn't expected the pilot to fly the
plane in that mode (not an uncommon problem - the user doing something
the designer hadn't planned for).
On the fly past the plane was at low speed, flaps out, wheels down.
When the pilot called for power at the end of the run, the onboard
computer said "don't be daft, we're landing, you don't need power!". By
the time the pilot had realised what was happening, taken the computer
off line there was about 10 seconds before he hit the trees. The
engines took about 13 seconds to spool up......
Cheers
Peter
Barrie Purslow wrote:
>
>
>> It would seem to me that the fly by wire system is great until something
>> goes wrong and then the automation will try to override the Pilots knee
>> jerk
>> reaction to correct it. ie the Airbus that insisted going right when the
>> pilot wanted left and the one that went terminally down when the pilot
>> wanted up.
>
> Clif,
> I don't recall reading anything authoratative about these incidents but I do
> recall reading the accident report into the Airbus that crashed into woods
> after doing a very low and slow pass at an air display. The inbuilt safety
> systems would not allow them to do the low, slow pass so they pulled several
> circuit breakers to disable them despite the fact that they had a full load
> of passengers (employees of Airbus) on board. The pilot in command was the
> Chief Test Pilot for Airbus Industries and his last word on the cockpit
> voice recorder was "merde!". He was sacked.
>
>> I still think that like power steering on cars the person in control needs
>> some tactile feedback
>
> Feedback is provided on all current power assisted flying control systems.
> It was only the very early, military systems that didn't feature feedback.
>
> Barrie
>
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