The success of the SU-152 forced Soviet tank designers to develop another vehicles based on new JS tank, which production begun in Cheluabinsk. Works on "Object 241" performed at the same time as the works on JS-1 (JS-85) heavy tank. New assault gun looked like its predecessor - SU-152, though the new one had a higher compartment. Internal capacity of both vehicles was equal, so they had an equal amount of ammunition - 20 shots. Both vehicles had the same armament - 152 mm ML-20S gun-howitzer. In summer 1943 the new "object 241" was showed to the GKO and after that it was accepted to the Red Army service under "JSU-152" designation.
The main problem during mass production of the new assault gun was lack of ML-20S cannons. Soviet artillery plants weren't able to produce them in proper quantity.
The crew is located in the battle compartment as follow: commander to the front right; drived to the front left; gunner is behind driver; Breech No 1 is behind gunner; Breech No 2 is behind commander.
The ammunition of the JSU-152, JSU-122 and JSU-122S consisted of several types of separate loading shots:
- armor-piercing rounds;
- Fragmentation or high explosive rounds (depends of fuse).
The crew was armed with either PPS or PPSh sub-machine guns and several grenades F-1 (in the US Army they known as "pineapples").
Standard ammo load of JSU-152 consisted of 20 semi-fixed shells which distributed inside the SPG as follow:
- Armor-piercing rounds are to the left; in special frames
- High explosive rounds - same
- Most of charges (cartridges) are in the left and right niches
- Some charges are on the floor right below the Main Gun
Linear Mode
