When should you set your altimeter?
When should you set your altimeter? Advise pilots to set altimeter 31.00 prior to reaching any mandatory/crossing altitude or 1,500 feet AGL, whichever is lower.
Why do pilots ask for altimeter?
“What is the purpose of the altimeter reading given to pilots by ATC?” That is the local barometric reading, so the pilots can adjust their altimeter to the same reading to show the correct and accurate altitude for the area at that time. That's very important for landing.
What are the three altimeter errors?
Aircraft altimeters are subject to the following errors and weather factors: Instrument error. Position error from aircraft static pressure systems. Nonstandard atmospheric pressure.