Comment on "Your altimeter displays one altitude while your GPS displays another. Under VFR, which do you use/when?"
...er to in the future when calibrating the altimeter. Then over the next few months, keep an eye on the altimeter reading when set to the ATIS barometer and see if my pressure altime...Comment on "Your altimeter displays one altitude while your GPS displays another. Under VFR, which do you use/when?"
...The altimeter had obviously been set two days previously [apparently during a time of high barometric pressure-Ed.]." Crews can avoid a Barometer Surprise by listening careful...