Asked in Airplanes and AircraftMeteorology and WeatherStaticsGravity
How do you calculate pressure altitude?
September 12, 2011 11:45PM
Pressure altitude can be determined by dialing your kollsman window to 29.92" or 1013mb the altitude displayed will be pressure altitude. Or if you want to use a mathematical equation to calculate pressure it is: 29.92-current baro.=x then take x*1000+Current field elevation=pressure altitude.
Example: Current baro is 30.08 field elevation is 845'.
29.92-30.08= -.16 now take -.16*1000+845=685 is your pressure altitude.