ak>WD> Without engines, there is no auto-pilot and there are no
ak>WD> hydraulics. It cannot fly itself under those conditions.
 
ak> Let's talk a little about Auxiliary power unit. They say that it can
ak> power the plane hydrolic system perfectly well:
ak> http://en.wikipedia.org/wiki/Auxiliary_power_unit
 
Oh yes ... but that means there must be fuel in the tanks as it is a
regular jetfuel-combustion engine.
 
No fuel --> no APU.
 
 \%/{at}rd

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