The 155 mm gun motor carriage M12 was a U.S. self-propelled gun developed during World War II. It mounted a 155 mm gun derived from the French Canon de 155 mm GPF field gun. The idea for the M12 was first proposed in 1941 and the pilot - T6 GMC - built and tested in early 1942.

The 155 mm Gun Motor Carriage M12 was a U.S. self-propelled gun mounting a 155 mm (6.1 inches) gun, derived from the French Canon de 155mm GPF field gun.

The 155 mm Gun Motor Carriage M12 was a U.S. self-propelled gun developed during the Second World War. Only 100 were built; 60 in 1942 and a further 40 in 1943. It mounted a 155 mm gun M1917, M1917A1 or M1918 M1, depending upon availability, a weapon derived from the nearly identical French...

The 155 mm gun motor carriage M40 was an American self-propelled artillery vehicle built on a widened and lengthened medium tank M4A3 chassis, but with a Continental engine and with HVSS (Horizontal Volute Spring Suspension), which was introduced at the end of World War II.

This vehicle is then called M12 Gun Motor Carriage (GMC). At the rear of the chassis, a steel blade is installed to ensure better anchoring of the vehicle during shooting. One of its disadvantages lies in the narrowness of the barrel housing, which only …

The M12 155mm gun motor carriage is a must for any US WWII armor collection. Especially important in the breakout of Normandy, these self propelled guns were frequently the only heavy artillery within days march of the front.

Early in the World War II, the Ordnance Department developed the 155mm Gun Motor Carriage, M12, using the World War French type 155m GPF, which had a maximum range of 20,100 yards, on an M3...

May 21, 2018 · One such project became the "M12 Gun Motor Carriage", a tracked, self-propelled gun (SPG) platform mounting a massive 155mm gun barrel and mated to the chassis of the existing M3 General Grant/General Lee Medium Tank.

Oct 31, 2010 · Development on the 155 mm Gun Motor Carriage, M12 was started in June 1941. Production did not start until March 1942, however, as the US Army did not consider a self-propelled gun necessary at the time. It was equipped with a World War 1 field gun, which was removed from its carriage and mounted on a Medium Tank, M3 chassis.

Le moteur du M12 était celui du M3, c'est-à-dire, le Continental R975-C1 essence de 9 cylindres, développant 350 à 400 ch à 2 400 t/min. Ce moteur permettait au M12 d'atteindre les 40 km/h sur route. Les 908 L de carburant embarqués donnait au M12 une autonomie de 230 km.