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Adjustments For Fuel Burn  
User currently offlineTockeyhockey From United States of America, joined Feb 2005, 952 posts, RR: 0
Posted (9 years 2 months 3 weeks 4 days 1 hour ago) and read 2657 times:

do jets, especially four engined jets, have to make a specific type of vector adjustment on long haul flights as fuel weight in the wings diminishes?

the reason i bring this up is seeing photos of the a340 at take off, with a full wing flex, which makes the engines look like they are actually vectoring upward by tilting the intakes toward the tarmac. i'm sure that the wing flex is dynamic throughout the flight and has to be compensated for, but how?

1 replies: All unread, jump to last
 
User currently offlineZeke From Hong Kong, joined Dec 2006, 9240 posts, RR: 76
Reply 1, posted (9 years 2 months 3 weeks 3 days 23 hours ago) and read 2646 times:

Quoting Tockeyhockey (Thread starter):
do jets, especially four engined jets, have to make a specific type of vector adjustment on long haul flights as fuel weight in the wings diminishes?

Generally speaking at the start of a flight your attitude is slightly higher that when lighter, and slightly slower, nothing very noticeable.



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