ISU-122 Assault Gun

 
 

ISU-122 Assault Gun

Designer: F. F. Petrov

Manufacturer:

Tankograd Complex at Chelyabinsk

Role:

Tank Destroyer / Assault Gun

Year Adopted:

1944

Weight: 46 Tons

Operational Status:

Russia - Obsolete
(2,410 total production)

Armament:

1x 122mm D-25S Cannon with 20-30 rounds (late model)
1 x 122mm A-19S Cannon with 30 rounds (early models)

1x 12.7mm DShK machine gun with 250 rounds

Engine:

W-2-IS, 12 cylinder 4-stroke Diesel engine, producing 600 hp at 2000 rpm

Suspension:

Torsion bar

Crew:

5 men

Armor:
         Upper Body Front/Sides:
         Hull Front:
         Hull Side:
         Hull Rear:
         Hull top:
         Bottom:
   
75 - 90mm (3.0 - 3.5 inches)
60 - 90mm (2.4 - 3.5 inches)
90mm (3.5 inches)
60mm

(2.4 inches)

20 - 30mm

(0.8 - 1.2 inches)

20 - 30mm

(0.8 - 1.2 inches)

Length:
         Overall:
         Hull Only:

 

 

9.18 meters (30 feet, 1 inch)

6.77 meters

(22 feet, 4 inches)

Height:

2.48 meters

(8 feet, 1 inch)

Width:

3.07 meters

(10 feet, 1 inch)

Maximum Speed:

37 kilometers per hour

(23 miles per hour)

Range:
220 km (137 miles)

Fuel Capacity:

520 - 560 liters (137 - 148 gallons)

 

 

The SU-122
in Pictures
Development,
History, and Use
Return to
Vehicle Index

 

 

Sources Cited

(1) Fleischer, Wolfgang, Russian Tanks and Armored Vehicles 1817-1945, Schiffer Military History: Altgen, PA, 1999. Print.