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Thread: [B777] Why can't APU support hydraulics but RAT can?
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Old 10th Apr 2017, 08:00
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hinhin
 
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[B777] Why can't APU support hydraulics but RAT can?
Just out of curiousity..


Why RAT, which is a small turbine, can provides hydraulics redundancy...
whereas APU, which is considered as the third engine in 777, cannot perform the same task?
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