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X-Plane 11.30. Situation: Aircraft: Alabeo M20R Ovation parked on the GA apron of Mosjoen airport (Kjaerstad), Norway (ENMS). According to Navigraph (Jepessen) charts the ENMS airport elevation is 240 FT. The METAR (https://en.allmetsat.com/metar-taf/western-southern-scandinavia.php?icao=ENMS) gives in this moment a barometric pressure of 999 hPa. This is equal to 29.5 inches mercury (I used the conversion function on: https://www.convertunits.com/from/inch+of+mercury/to/hPa). If I set the altimeter to 29.5 inches, using the Kollman's knob, the altimeter is showing an altitude of minus 240 FT.
If I work the other way around: with the Kollman's knob set the altimeter to indicate an altitude of 240 FT (airport elevation), the altimeter setting shows a barometric pressure of 30.02 inches mercury which is equal to 1016,6 hPa.
I guess setting the altimeter to the airport elevation would be the most realistic.
What do you advise me to do.
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