Electrical power supplies

From:         Jean-Francois Mezei <MEZEI_JF@Eisner.DECUS.Org>
Date:         22 May 95 02:46:16 
Organization: Digital Equipment Computer Users Society
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With the increasing desire of adding more and more entertainment services on
board aircrafts, I am wondering how much an airline can decide to add without
worrying about the plane's electrical supply ?

How much electrical power is generated by the average large airliner ?
(767, 747-400) ?

How much is needed for aircraft operations and how much is available for
passenger confort (lights, video, galleys).

For instance, if an airline wished to add outlets to allow every passenger to
plug in their laptops, would that be possible ?

And when personal LCD video systems are added to every seat on a 747, will that
be possible without modifying the aircrafts electrical generators ?