tockeyhockey
Posts: 880
Joined: Fri Feb 04, 2005 10:57 pm

Adjustments For Fuel Burn

Tue Oct 04, 2005 11:36 pm

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?
 
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zeke
Posts: 10364
Joined: Thu Dec 14, 2006 1:42 pm

RE: Adjustments For Fuel Burn

Wed Oct 05, 2005 1:53 am

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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