View Single Post
Old Jul 12, 2011, 10:28 PM
Tony_Fletcher is offline
Find More Posts by Tony_Fletcher
AMA #903699
Tony_Fletcher's Avatar
USA, VA, Alexandria
Joined Mar 2008
924 Posts
Originally Posted by victapilot View Post
That's a nice flight - congrats!

Just curious - don't you set the altimeter to zero? It was intersting watching the gages as you went around. Thanks!
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!
Tony_Fletcher is offline Find More Posts by Tony_Fletcher