SU-122-54
Overview
SU-122-54
Soviet SU-122-54 tank destroyer on public display in a park in Krasnodar as seen in 2022.
Source: Andrey Butko -
© CC BY-SA 4.0
Origin
Soviet Union
Type
Assault gun
Tank destroyer
Tank destroyer
Entered service
1956
Status
Out of service
Development
1948 - 1952
Developer
Soviet Union
-
OKB-174
Production
1955 - 1957
Producer
Soviet Union
Number produced
77
Designations
Obyekt 600 (GABTU index)
IT-122 (Soviet sevice)
SU-122-54 / Samokhodnaya Ustanovka 122-54
SU-100 M1968 (NATO reporting name)
IT-122 (Soviet sevice)
SU-122-54 / Samokhodnaya Ustanovka 122-54
SU-100 M1968 (NATO reporting name)
Notable users
Soviet Union
Details
Facts
SU-122-54
General
Origin
Soviet Union
Type
Assault gun
Crew
5 (commander, driver, gunner, 2 loaders)
Dimensions
Weight
36.4 t combat load (some sources indicate 37.25 t)
34 t empty
Length
6.00 m hull only
9.97 m with gun
Width
3.27 m
Height
2.06 m roofline
2.56 m overall
Main armament
Type
122mm D-49 rifled gun
Mount
Main gun in casemate
Ammunition
35 rounds
Elevation
-4° to +16°
Traverse
8° left to 8° right
Stabilizer
No
Coaxial armament
Type
14.5mm KPVT heavy machine gun
Mount
Coaxial with main armament
Ammunition
600 rounds in total
Traverse
Elevation and traverse as main armament
Stabilizer
No
Secondary armament
Type
14.5mm KPVT heavy machine gun
Mount
Roof mount
Ammunition
600 rounds in total
Traverse
Manual traverse and elevation
Stabilizer
No
Chassis
Chassis type
Tracked chassis, five roadwheels
Chassis layout
Idler front, drive sprocket rear
Tread
2.64 m
Track width
0.58 m
Track on ground
3.84 m
Ground pressure
0.81 kg/cm²
Suspension
Torsion bar
Automotive
Engine model
ChTZ V-54
Engine type
38.9-liter liquid-cooled V12 diesel
Power output
520 hp at 2.000 rpm
Torque
2.254 Nm at 1.300 rpm
Transmission
Manual, 5 forward, 1 reverse
Fuel
720 L
Mobility
Speed
48 km/h on road
20 - 25 km/h offroad
Range
360 - 400 km on road
720 km with fuel tanks
Power to weight ratio
14.3 hp/t
Obstacle crossing
Ground clearance
0.43 m
Wall
0.7 m
Trench
2.7 m
Gradient
60 %
Fording
1.4 m
Protection
Armor type
Welded steel
Armor thickness
100 mm at 51° upper hull front
100 mm at 55° lower hull front
100 mm at 41° sloped frontal sidepanels of casemate
80 mm at 26° casemate sides
80 mm vertical lower hull sides
30 mm at 17° casemate rear
45 mm at 60° hull rear
20 mm roof
20 mm floor
NBC system
Yes
Smoke system
Exhaust diesel injection
Equipment
Night vision
TVN-1 passive night vision for driver
Gun sight
TSh-2-24 gun sight, with 3.5x and 7x magnification
S-71-24 indirect fire mechanical sight
Radio
R-113 installed after 1958 refits
Armament
122mm D-49 rifled gun
The 122mm D-49 cannon was a further development of the D-25T tank gun used on Soviet heavy tanks. It features a fume extractor and assisted loading using a pneumatic rammer.
14.5mm Vladimirov KPVT heavy machine gun
Two 14.5mm KPVT heavy machine gun were fitted as secondary armament. One coaxial with the main gun and the other as flexible armament on the roof.
Related articles
T-54
The SU-122-54 was based on the chassis and drivetrain of the T-54 medium tank.