How It's An Advantage:
Unlike the Cracked Summer Intern Post-It Eating Contest, pilots didn't fly "blind" because their superiors needed something hilarious to gamble on. Being able to fly without actually seeing anything was a part of a fighter pilots job thanks to a little something called G-force. As pilots and roller coaster enthusiasts will tell you, G-force is fine in moderation. But ramp up the G's and that delightful tingle you get in your man pouch at the top of the first hill of a roller coaster can drain all the blood from your head, leaving you temporarily blind or, less temporarily, dead.
The fighter planes of the Second World War were capable of all kinds of airborne acrobatics that found pilots' bodies moving in the opposite direction of their blood. Dogfights were a constant balance between out-maneuvering the guy trying to turn you into confetti, and trying not to steer the sight out of your eyes. One hairpin turn and you'd find yourself with all the blood your brain needs for seeing down in your feet. Or at least, that was a problem for people who had legs for their blood to drain into.
Bader, sitting on his awesome secret weapons: Nothing.
Having no legs, the blood is thought to have had less room to drain inside of legless pilots, allowing them to pull tighter turns inside their fighters and thereby kick more ass than your average, full-bodied pilot.
And ass they did kick. Throughout his legless career, Bader took out more than 22 German planes in less than two years. Maresyev completed over 86 combat missions, shot down 11 enemy aircraft (three in a single dogfight) and won the Golden Star of the Hero of the Soviet Union. While Hodgkinson had less time in the air without legs, he managed two kills during the war, the second of which saved the life of Percy "Laddie" Lucas's life, who went on to be the hero of the Siege of Malta, one of the most strategically important battles in all of WWII.
Cracked ranks it as the fourth best battle to watch while totally baked.