V-weapons vast majority aimed at London; 2,515 reached the city, killing 6,184 civilians and injuring 17,981. Croydon to the south, on the flight path of the V1s suffered severely taking 142 hits. V-2 rocket launching sites were set up by the Germans around The Hague in the Netherlands on 6 September 1944. The first was launched from here against London on 8 September 1944 and took an estimated 5 minutes to fly the 200 miles from the Hague to London where it struck at 6.43pm on 8 September on Chiswick causing thirteen casualties. As the V2 explosions came without warning, the
Rocket artillery effectiveness. The Japanese 20 cm rockets were launched from tubes or launching troughs, while the larger rockets were launched from steel ramps reinforced with wooden monopods. The Japanese also deployed a limited number of 447mm rocket launchers, termed 45 cm Rocket Mortars by United States personnel who test-fired them at the close of the war. Their projectiles consisted of a 1,500 lb cylinder filled with propellant and ballistite sticks detonated by black powder, which produced a blast crater approximately the size of an American 1,000 lb bomb. In effect, this made the 447mm projectile a type of surface-to-surface barrel bomb.