The
technical reasons for the victory
The Radar
One thing that made easier the victory of the RAF was
the radar. From the end of the thirties, England had built many radar tracking stations
to detect any aircraft, which would come above their land. The RaDAR , from
Radio Detection And Ranging, consists of a wave, sent from a radio which comes
back if it meets anything metallic.
This technique had been first described by a German in
1904, and tested by French and American scientists from 1922 to 1927. But an
American used it for the first time to detect planes in 
1930.
From that date, many countries tried to develop their own radar to prevent
themselves from attacks by the air; Great Britain was the only one to build an
operational belt of radar tracking stations. And this radar network was very
efficient because it was linked with the Fighter Command, which knew exactly
where the British and German planes were.
During the Battle of Britain, radar had an
important part in the British victory. It led the Allied to send fighter
patrols only when there were German aircraft’s above England and directly where
they were, so that British saved much fuel and many pilots. Although the Germans
did not know how important the radar was to the RAF, they tried to bomb the
installations in July and August. Those attacks were not very effective because
the bombers had to be very precise to hit the aerials that were not very
strong.