Owain Glyndwr:Serious query for you. Early model A330s came with a VARIABLE ZFW
schedule! That is MTOW of 215tonnes allowed MZFW of 167tonnes and a sliding scale to
MTOW of 209tonnes allowed a MZFW of 172tonnes. This seems counter-intuitive and the only explaination we were ever given from Airbus were that "they were selling fatigue life"!
Incidently, the sliding scale allowed a commersurate increase in MLW to match.
Your thoughts would be appreciated.