Originally Posted by
IFLY_INDIGO
FMS calculates aircraft CG using the ZFWCG and Fuel consumption data, very mechanically. if in flight, you change the ZFWCG by any amount, FMS updates the aircraft CG instantly. What could be the use of the value of aircraft CG for FMS?
For GC <25% add 2 kts to Vls
Probably one of the reasons the FMGS calculates the GC.
Also, for info for the pilots in case of landing distance calculation. Forward CG (<25%) increases landing distance by 2% on a dry rwy and 3% on wet or contaminated runways.