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Why are gyros driven by vacuum and not high pressure air?
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3rd Jun 2016, 11:16
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wiggy
Join Date: Feb 2001
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Dunno..I'd offer one wild guess that if you "blow" the air in goes through the pump before the instrument and so perhaps there's more of a chance of introducing contaminants into the instrument than if the pump is on the other end of the process.
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