Originally Posted by jonathanlivingston
-graphics on how the 737-800s' winglets affects the thrust, drag and fuel consumption
This topic is intensively covered in many pubilcations, still, explicit graphs are rare and not public. Likewise performance graphs of commercial in-service aircraft.
Originally Posted by jonathanlivingston
-graphics on how extra weight on the 737 800 affects the fuel consumption
Just take a guess: B737 Manual or QRH, compare fuel flow of different weights at similar speeds. The weight is not so dramatic after all.
Originally Posted by jonathanlivingston
-Benefits of flying Great cicle routes compared to the ones effectively flown
Another pretty easy task: calculate great circle distances between the few long-range east-west connections of either airline, and then compare to constant heading distance. Actually, this is moderately difficult geometry. Probably ask a sailor.