Originally Posted by
dragon man
Originally Posted by
On eyre
So can someone advise - is the reduction in payload due to European winter weather conditions or takeoff limitations in Perth’s summer ?
Both, however on a very hot day in Perth last week max take off weight was reduced by 5000 kilos plus the higher SG reduce fuel up lift by about 1000 kilos.
Disagree - Neither of those were the primary reason.
The payload reductions earlier in the week were due to unusually
strong headwinds enroute to LHR. Today's planned flight time is a full one hour shorter than that of 5 days ago when the large restrictions occurred! Flight times are back to normal, yielding a 5.0 ton payload gain. On the hot day, the aircraft tasked was one of the couple remaining without increased thrust engines. So while it had a reduced TOW it made no real difference. The tanks were full and the ZFW was restricted to make the distance. So I expect it had to depart at less than MTOW, regardless of the temp in Perth.