Could you write an article on altimetry? The whole pressure setting and adjusting it is confusing. I know 29.92 is the reference datum. But, when I set the local pressure at my airport, for example 30.92, I get field elevation. So is local pressure 30.92 and now it indicates field elevation or is 30.92 the pressure at sea level? When I turn the altimeter setting down (decreasing numbers in the Kolls-man window) altitude decreases on the altimeter. Why is that? You see, it's all kind of confusing.
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