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Old 24th June 2009, 18:25   #2 (permalink)
Piper19
 
Join Date: Dec 2006
Location: belgium
Posts: 199
I don't know the 777 (yet), but following your explanation it can only be something like a hot battery bus. (batt switch is for "battery bus" only if the 777 follows normal Boeing philosophy). the hot battery bus is hotwired to the battery without switch in between.
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