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Old Jul 13, 2011, 08:22 AM
jesolins is offline
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United States, TX, San Antonio
Joined Feb 2007
15,139 Posts
Hi Tony,
Congrats on your solo and thanks for sharing

So you setting by the current the barometric pressure which should give you proper field altitude AGL correct? ...i.e. current BP is 2984? ...or is the new private pilot now only setting the altimeter by the rounding off the field altitude these days?
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Originally Posted by Tony_Fletcher View Post
No. The altimeter is set to the current sea level pressure to show field elevation, 170 ft at that airport (rounded to 200.) That way all airplanes are flying in the same space. Imagine a flight that left from an airport at sea level and another at a field 500 above sea level both left with an altimeter set to zero. Without some baseline to share, they would be at different heights if flying at say 1,000 feet.

Pattern altitude is 1,000 feet at that field, so that's why I leveled off at 1,200. Pattern altitude plus field elevation.

I know what you mean. Why doesn't the altimeter read zero was my first thought too. It took me some time to wrap my head around that concept!
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