The Ju 87G was an attack aircraft developed for anti-tank missions and was the last version of the Ju 87, used mainly on the Eastern Front. after 1943, although the Hs 129B had proved to be an excellent attack aircraft in the field, its large fuel tanks made it vulnerable to destruction by anti-aircraft fire, so the Reich Ministry of Aviation asked Junkers to develop a replacement for the Hs 129 in the shortest possible time. On 3 November, Erhard Mülch proposed the development of a successor to the Ju 87 or its redesign, which was eventually based on the Ju 87D, with a Jumo 211J engine, two 37mm guns and a modified fuselage to carry free-fall bombs weighing up to 1,000 kg. It was also modified to carry free-fall bombs weighing up to 1,000 kg. The armour protection of the Soviet Air Force IL-2 attack aircraft was copied to protect the crew from ground fire, as the military required enhanced low altitude attack characteristics.The Ju 87G was nicknamed the "Kanonenvogel" due to its two 37mm guns under the wings and pods for six rounds of tungsten carbide armour-piercing ammunition, a design that was used with great success by skilled Stukas such as Rudel.