<PRE><B>Question 825086</B>
your airfield is at 5000 feet and the pressure reading corrected to slp is 28.85 in. of Hg. what is the airport pressure altitude in feet
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PA = 5000 - (28.85 - 29.92)*1000
= 5000 + 1070
= 6070
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PA is not relevant, except that it affects DA, density altitude, which affects aircraft performance.
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DA = PA corrected for temperature
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