By mid-September, the battle had raged daily and both sides were near exhaustion. But then a number of strategy changes occurred that would give the RAF a margin for victory. First, Reichsmarshal Goering ordered his Bf 109s to fly close escort on his bombers which hindered the Bf 109s effectiveness. Then Hitler shifted the Luftwaffe from attacks on Fighter Command's infrastructure to the bombing of London. This respite allowed the RAF to rebuild some of its depleted strength. Finally, RAF fighters increasingly switched to more flexible formations and began using head-on attacks. On the 15th of September, these changes allowed two major raids on London to be repulsed with heavy losses to the Luftwaffe. Though additional tough weeks of fighting would follow, the losses this day convinced Hitler that the RAF wouldn't crack. Four days later he canceled all plans to invade England. The British had won. One of the participants in the fighting that day was the legendary Douglas Bader, the leader of No. 242 Squadron, an ace and excellent pilot who had lost both legs in an accident before the war but who still flew with artificial ones. This scenario depicts his afternoon fight in which his Squadron of Hurricanes, forced into a slow climb due to a late scramble, disrupted a formation of bombers with a desperate head-on attack despite their Bf 109 escort.
