Even the 747 with its 6 foot winglets can quite happily fly without one. And the pilots wouldn't even begin to notice
Very true, but with a 9435 Kgs reduction in performance limited takeoff and landing weights, it shouldnt take long for the bean counters to notice that they are losing money!
Strangely enough, I remember that the -400 used to have a fuel flow increase with this CDL, however its no more!
Mutt.