787 Electric Hydraulic Pump
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Join Date: Jul 2009
Location: Tranquility Base
Age: 68
Posts: 53
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787 Electric Hydraulic Pump
Just spent over 30 hours riding on a Dreamliner and I was shocked by the 850 hertz whine on take off and landing. Did Boeing attach that unit to the floor to make sure it had a good sounding board? Curious as to how Boeing could mount it in such a fashion to cause that much acoustic coupling. Quite irritating. Anyone know how that unit is mounted and why it is so loud in the cabin?
