lol don't pick on the new guys you bullies.
Banshi if you want to prove them wrong, download the training arena map, create an offline game and make sure the fuel burn is 1.0. Grab a full fuel pony with drop tanks, spawn at 20K from the fields up north and go to whatever alt is best for the mustang (see the ingame charts). Use the max cruise engine setting and wait for the acceleration to end. now you can see the actual range in the E6B. Same with the 262.