BARO vs RADIO | MDA vs DA | Decision Altitudes in Navigraph Charts (IFR Approach)

[@JohnSeong]

*TIPS & TRICKS* Decision altitude (DA) is referenced to mean sea level and decision height (DH) is referenced to the threshold elevation. RADIO is similar to DH. It relies on the radio altimeter and uses AGL (Above Ground Level) altitude readings, meaning that it is accurate enough for precision approaches. BARO (Sea Level) relies on the barometric setting altitude and is used in non-precision approaches, as it is not as accurate as RADIO. Source: forums.x-plane.org/index.php?/forums/topic/250216-baro-v-radio-on-approach-perf-page/

[@JohnSeong]

I also made an embarrassing mistake where I entered the value 50 as the CAT III b Decision Height (DH) in the BARO entry on the FMGC/MCDU instead of RADIO as DH is GROUND LEVEL = RADIO whereas DA is SEA LEVEL = BARO!

[@lordplankton09]

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[@JohnSeong]

@@lordplankton09 Tysm! Comments like these put a smile on my face and keep me going.