Re: 757 flight recorder located

From:         gt1208a@prism.gatech.edu (Peter Hollingsworth)
Organization: The Grandscale Earthly Destructor
Date:         21 Mar 96 02:37:55 
References:   1 2 3 4
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In article <airliners.1996.364@ohare.Chicago.COM>, ehahn@wren.mitre.org
(Ed Hahn) wrote:

> > The second idea is a float.  Attach to the recorder a sturdy, brightly
> > colored balloon and a bottle of a suitable compressed gas.  Again trip
> > on a high ambient pressure, being sure to provide enough gas to inflate
> >....
>
> Both of these boxes are well-bolted to the structure of the aircraft.
> The damage necessary to free the CVR would be rather extreme  (i.e.
> explosion between the unit and the tray.)  In addition, the presense
> of a compressed gas unit in an aircraft would probably be a
> significant safety hazard in itself.  (The only compressed gas I'm
> aware of inside the fuselage on newer model aircraft are the pilot's
> oxygen bottles, and they are treated with great respect.  Passenger
> emergency oxygen on more recent aircraft are provided by perchlorate
> candles, similar to emergency oxygen systems on submarines.)

Actually there are also emergency portible oxygen bottles on most
comercial A/C for emergency medical reasons. Additionally, the evacuation
slides are power by an initial burst of compressed nitrogen.

--
Peter Hollingsworth
The Grand Scale Earthly Destructor
E-Mail:gt1208a@prism.gatech.edu
WWW: http://apts19.residence.gatech.edu