Good point about altimeter errors.
But don't pilots check their altimeters before flight? I don't know about anyone else, but when I set the QNH, I check that the altimeter is reading the aerodrome elevation, or slightly lower. I'd like to think that if my altimeter was out by 100', I'd notice, and get it fixed, legal or not.
FFF
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PS - Is there now an argument for flying around at exactly 3000', since everyone else seems to be adding or subtracting a couple of hundred feet from the round numbers?
