Sherman M4A3(105) Assault Gun “Little Prince” – American Medium Infantry Support Tank


Sherman M4A3(105) Assault Gun tank
Sherman M4A3(105) Assault Gun – photo 2022

The idea of mobile assault guns during World War Two was to be more mobile than tanks and could be utilized as both direct and indirect artillery fire to support the infantry. As opposed to standard tanks, mobile assault guns mostly fired high explosive shells at comparatively low velocities, targeting fortified positions and buildings. They were not intended to be deployed as tank or tank destroyer substitutes.

American WW2 Mobile Assault Guns

While most WW2 mobile assault guns like the German StuG III Howitzer variant and the Soviet SU-122 lacked a turret and had their gun fully enclosed to reduce the silhouette and simplify it’s manufacturing, the United States never focused on a purpose-built assault gun. Instead it modified it’s existing tanks like the M4 Sherman and the M5 Stuart for the role by just replacing the gun. In the case of the Sherman platform this became the M4(105), for which the turret was modified to fit a 105mm Howitzer gun.

Sherman M4A3(105) Assault Gun Howitzer
M4A3(105) 105 mm Howitzer detail – photo 2022

Little Prince

This tank named “Little Prince” is a Sherman M4A3(105) Assault gun. It’s main gun is a 105mm M4 Howitzer (66 rounds). For secondary armament the crew had a .50cal HBM2 machine gun and two .30cal M1919A4 machine guns at their disposal. The 32ton tank is powered by a Continental R974 C4 640hp engine.

Sherman M4A3(105) Assault Gun
Sherman M4A3(105) Assault Gun
Sherman M4A3(105) Assault Gun
Sherman M4A3(105) Assault Gun turret detail – photo 2022
Sherman M4A3(105) headlight
Sherman M4A3(105) headlight detail – photo 2022
Sherman M4A3(105) Assault Gun
Detail of the Sherman M4A3(105) Vertical Volute Spring Suspension (VVSS) with “offset roller” – photo 2022
Sherman M4A3(105) Assault Gun tank
Sherman M4A3(105) Assault Gun tank – photo 2016
Sherman M4A3(105) and Sherman M32B1 TRV
Sherman M4A3(105) and Sherman M32B1 TRV – photo 2016
Sherman M4A3(105) Assault Gun tank
Sherman M4A3(105) empty engine compartment – photo 2016

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