What were four factors that lead to German defeat in the Battle of Britain?

Answer 1

The biggest factor was the Early Warning System of radar and observers which could predict the intended targets and alert Fighter Command of the number, speed, direction, and location of the enemy bombers. Second was the fact that the RAF was fighting over its own territory. Any RAF fighter who was shot down, if he was not killed or severely wounded, would be back in the fight, sometimes within the same day. Third, the Luftwaffe was fighting at the end of its airplanes' flying radius. The planes had to release the bombs and return to base to refuel immediately. Not only could the RAF shoot them down over England, they could chase the bombers halfway across the channel. Fourth, even though the Luftwaffe had superior tactics and formation discipline, the impact on the RAF airfields was contained by extraordinary efforts of the RAF ground crews and the fact that British industry was able to build more Spitfires and Hawkers every week, than the Nazis could shoot down in dogfights or destroy on the ground. Eventually, this led Hitler to conclude that Goering's air forces could not conquer England from the air, and turned his attention to the invasion of Russia.