temp of the air was 72F. At another point, readings taken at the same time showed an altitude of 1243ft and a temp of 64F. The difference in elevation between the two points is?
Answer:
An aneroid barometer reads sea level at 29.92 HG (inches of mercury ) on a perfect day at 70 degrees F. The differences in pressure altitude would have been 904ft. The actual altitude would have to be corrected for temperature and barometric pressure. Aircraft controllers at airports will give you the corrected pressure reading for your area, this is calculated off their elevation above sea-level and Their current barometer reading.
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