In the summer of 1942, Germany began working on two new secret weapon, the V-1 Flying Bomb, a pilotless monoplane that was powered by a pulse-jet motor and carried a one ton warhead. It was launched from a fixed ramp and travelled at about 350 mph and 4,000 feet and initially had a range of 150 miles (later 250 miles).
Germany fired 9,521 V-I bombs on southern England. Of these 4,621 were destroyed by anti-aircraft fire or by RAF fighters. An estimated 6,184 people were killed by these flying bombs. By August only 20 per cent of these bombs were reaching England.
The second secret weapon, the V-2 Rocket, was developed by