V-2 rocket offensive began on 8 September 1944, when "Lehr- und Versuchsbatterie No. 444" () launched a single rocket guided by a radio beam directed at Paris. Wreckage of combat V-2s occasionally contained the transponder for velocity and fuel cutoff. The painting of the operational V-2s was mostly a ragged-edged pattern with several variations, but at the end of the war a plain olive green rocket also appeared. During tests, the rocket was painted in a characteristic black-and-white chessboard pattern, which aided in determining if the rocket was spinning around its longitudinal axis. The original German designation of the rocket was "V2",
Type 4 70 mm AT Rocket Launcher Type 4 70 mm AT Rocket Launcher The Type 4 70 mm AT Rocket Launcher was a Japanese rocket launcher used during the last year of World War II. It was to be used in the Japanese mainland in case of an invasion by the Allies. It is comparable to the German Panzerschreck and the American Bazooka. By 1944 the Americans were using M1 Bazooka anti tank rocket launchers in the Pacific Theater against the Japanese. In response, the Japanese began development of the Type 4 Rocket Launcher. Unlike the US rocket that used fins to stabilize it in flight,