Re: ETOPS Question

Date:         03 Oct 97 01:18:34 
From: (Malcolm Weir)
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On 28 Sep 97 20:59:07 , ae562@FreeNet.Carleton.CA (Eric Thomas) caused to
appear as if it was written:

>Speaking of which, would a FBW Airbus (say an A320) have been able to
>manage a "Gimli Glider" situation?   Do Airbuses have some sort of
>battery back-up or air ram generator so that the computers driving
>the control surfaces would be able to effectively work in a glide/no power

Yes.  Electrical power for the FBW computers is a minor problem: the big
problem is hydraulic power, and that's the primary role of the RAT device:
to provide hydraulic pressure.  The computers can be driven by batteries if
necessary, as are the radios, etc.

Look at the situation when BA's G-BDXH lost all four engines in Indonesia:
even without engine power, the crew were able to communicate with ATC
(actually, with a relay aircraft that could receive the dust-attenuated
radio signal).