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Thread: QNH and altimeter question
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Old 11th Feb 2013, 19:19
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Arm out the window
 
Join Date: Jan 2001
Location: North Queensland, Australia
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Say you're at sea level and the altimeter's set to read zero.

The pressure drops, so the altimeter reads high. You then reset the subscale by winding it down to the new lower pressure setting, which also winds the altitude reading back to zero.
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