The Battle of Britain was an important test of the efficiency of British airplane technology. But the amazing and swift development of German air power prompted the British to galvanize the air force into a separate military branch that could eventually reach parity with the Germans. Radar - or radio detecting and ranging - was one of the most important factors in the success of Britain's air defences during the Battle of Britain. Radar could be used to detect and locate incoming enemy aircraft. ... Radar gave early warning of approaching raids.
