SAU SU-122-54 – Self-propelled artillery unit 1950

This self-propelled gun was created in 1949 g. on the basis of developments, produced during the combat use of ACS during the Great Patriotic War. For a basis was the T-54. For service installation has been adopted only in 1954 g. There were created 77 SAU SU-122-54. Self-propelled gun was considered closed. All crew members are able to communicate freely with each other, since the control compartment is aligned with the fighting compartment. The conning tower were together commander, driver mechanic, as well as both the charging: left and right.

Thoroughly protection cutting SU-122-54 was performed. It was welded from the armor plates thereby, so that they have a rational angles. The thickness of the frontal armor body portion reached 100 mm. The angle of inclination from the vertical frontal armor plate was equal to 51 °. Transversely mounted a diesel engine in the body allowed to make the engine-transmission compartment is more compact. Power point, transmission and chassis were taken from the T-54 and several recycled. For the first time in a Soviet tank on the machine in the air engine start system was introduced compressor AK-150B. On SU-122-54 changed the configuration of internal fuel tanks. They become two instead of three external. As a consequence all upgrades of the machine's center of gravity shifted forward, It prompting the need for change in the mutual arrangement of rollers.
By car, installed a 122-mm gun D-49, whose performance is not inferior to the gun heavy tank IS-3. She had elevation angles and horizontal guidance, ravnyavshiesya 16 degrees. The gun is also equipped with an ejector for purging the barrel bore and an electromechanical device chambering rounds, which greatly facilitates the charging work and increased the firearm to 5 rounds per minute b.

Cannon SU-122-54 was installed in front of the housing in the fully armored fighting compartment. Its ammunition included a wide range of ammunition: high-explosive and armor-piercing (35 shots), as well as conventional 122-mm howitzer grenades. Since the basic tool was paired 14.5mm gun KPVT, anti-aircraft gun with air recharging system of the same caliber were installed on the roof of the mobile cabin. There is also a range finder and. Ammunition consisted of machine guns 600 rounds. The fire control system includes a telescopic sight, required for direct fire, and mechanical panorama firing from covered positions.
Relatively short serial production of these machines is due to the fact, that the Soviet Union has successfully conducted development of a more powerful rocket weapons. The designers worked to create both strategic missiles onshore and offshore, and controlled rockets, through which it was possible to eliminate enemy targets with dramatically increased precision.

Tactic-technical characteristics SAU SU-122-54

Foto SAU SU-122-54

A source