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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Altitude vs. Barometric pressure
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<blockquote data-quote="overbore" data-source="post: 112176" data-attributes="member: 2981"><p>THE BIG WHY QUESTION:</p><p>Th reson for the different pressure settigs stems from the requirements of flying, which at lower altitudes ( (below 18,000') has everyone flying at an altimeter setting corrected to sea level pressure as a standard value so that, for example, using the local (corrected) station pressure will have aircraft flying at, for example, 1,000 feet above ground level at that station, will be at the same altitude. </p><p>Climbing above 18,000 we all set our altimeters to 29.92" to keep a the same "flight level". This is the why. Overbore, Capt. Pan Am, Ret /ubbthreads/images/graemlins/cool.gif</p></blockquote><p></p>
[QUOTE="overbore, post: 112176, member: 2981"] THE BIG WHY QUESTION: Th reson for the different pressure settigs stems from the requirements of flying, which at lower altitudes ( (below 18,000') has everyone flying at an altimeter setting corrected to sea level pressure as a standard value so that, for example, using the local (corrected) station pressure will have aircraft flying at, for example, 1,000 feet above ground level at that station, will be at the same altitude. Climbing above 18,000 we all set our altimeters to 29.92" to keep a the same "flight level". This is the why. Overbore, Capt. Pan Am, Ret [img]/ubbthreads/images/graemlins/cool.gif[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Altitude vs. Barometric pressure
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