This is my constant argument, it couldn't be done yet they fitted it with numerous different engines, guns, cannons, bombs,rockets, camera's, made it fly at 45,000ft to shoot down PR aircraft, fitted it with Jato's, folding wings, tow gliders, carry beer made it work in Europe, the desert the pacific in Russia off carriers and dived it to almost MACH 1 to name just some of the things it did but add fuel to give it long range, nah mate, too difficult, can't be done, beyond our engineering ability.Heck, they turned it into a naval fighter...