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The Basics, Starting Out
Barometric Pressure - my attempt to learn
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<blockquote data-quote="royinidaho" data-source="post: 406214" data-attributes="member: 2011"><p>Way too much reading for me!!!</p><p></p><p>I think you're on the right track if Chas1 says so....</p><p></p><p>Air pressure indicates air density.</p><p></p><p>The higher the pressure the more dense the air thus more resistance to bullet flight. Just the opposite for decreased air pressure.</p><p></p><p>Observe one of those mercury u-tube barometers and it'll come together.</p><p></p><p>Results are the higher the elevation, the lower the air pressure, the less resistance to bullet flight thus higher ballistic coefficient.</p><p></p><p>The hotter the air the less dense it is also. That's why crop dusters quit flying after about 1100 hrs or so.</p><p></p><p>Just the way I look at it.....</p></blockquote><p></p>
[QUOTE="royinidaho, post: 406214, member: 2011"] Way too much reading for me!!! I think you're on the right track if Chas1 says so.... Air pressure indicates air density. The higher the pressure the more dense the air thus more resistance to bullet flight. Just the opposite for decreased air pressure. Observe one of those mercury u-tube barometers and it'll come together. Results are the higher the elevation, the lower the air pressure, the less resistance to bullet flight thus higher ballistic coefficient. The hotter the air the less dense it is also. That's why crop dusters quit flying after about 1100 hrs or so. Just the way I look at it..... [/QUOTE]
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Barometric Pressure - my attempt to learn
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