A320 Mtow
I know this figure is ultimately a company specific one but could someone explain to me when A320 MTOW increases were introduced and if one can tell by looking at the derivate (-xyz). The FCOMs given to us during training state MTOW to be 73,500 Kg. Since then I've seen FCOMs that state 70,000 Kg, 77,000 Kg and more recently I've even heard of a 78,000 Kg version.
Thanks