ISU-122

from Wikipedia, the free encyclopedia
ISU-122
ISU-122 in the Poznań Military Museum

ISU-122 in the Poznań Military Museum
General properties
crew 4 or 5
length 9.85 m
width 3.07 m
height 2.48 m
Dimensions 46 tons
Armor and armament
Armor 90 mm, tower front 120 mm
Main armament 122 mm cannon A-19
Secondary armament 12.7 mm FlaK machine gun DSchK
agility
drive W2IS-V12-Diesel with water cooling 38.9 l
520 HP (388 kW)
suspension Torsion bar
Top speed 37 km / h (road) / 19 km / h (terrain)
Power / weight 11.3 hp / ton
Range 220 km, 370 km with additional tanks

ISU-122 (Russian ИСУ-122) is a Soviet assault gun and tank destroyer of the Second World War .

history

The ISU-122 was developed at the same time as the ISU-152 . In contrast to the heavier armed ISU-152, the variant was supposed to be practically only a tank destroyer and not, like the latter, also perform artillery tasks. Technically, the two vehicles differed mainly in their armament. Instead of the 152-mm cannon howitzer, a 122-mm cannon A-19 and later D-25 were installed in a roller shutter . The ISU-122 could transport significantly more ammunition than the ISU-152. A disadvantage for a tank destroyer, however, was that the ammunition was in two parts, which significantly increased loading times. In addition, the armor was too weak compared to German tank destroyers such as the Jagdpanther or the Jagdtiger . In order to increase the driving range, additional drop tanks were installed. In the event of a battle, these were thrown off immediately to reduce the risk of fire. The ISU-122 was also a few inches lower than comparable German tank destroyers. This allowed better camouflage in ambush positions. The front armor was reinforced with the roller cover, the tank destroyer was more vulnerable to a flank attack. The ISU-122 was used by the independent tank destroyer regiments. Similar to most Soviet tanks and assault guns, the ISU-122 was also used for the deployment of so-called "Panzerreiter". Since the Red Army had no or only insufficient armored personnel carriers, infantrymen often drove into battle on the engine covers of tanks. Both ISU assault guns were particularly suitable for this due to their construction.

After the end of the Second World War, the ISU-122 remained in service until the 1960s. 1,735 vehicles were produced. After the war, the vehicle was also used in all Warsaw Pact states and in the Middle East.

Technical specifications

General

Armor

    • Tub
      • 90 mm bow / inclination 60 °
      • 60 mm driver front / 12 °
      • 90 mm tub side / 90 °
      • 60 mm stern up / 41 °
      • 60 mm stern below / 49 °
      • 30 mm ceiling / 0 °
      • 20 mm bottom / 0 °
    • tower
      • 60 + 65 mm tower cover / arched
      • 90 mm tower front above / 60 °
      • 75 mm tower side / 75 °
      • 60 mm stern / 90 °
      • 30 mm ceiling / 0 °

Other technical data

  • Fuel consumption per 100 kilometers (road): 227 liters
  • Fuel supply: (main fuel tank / additional tanks) 500/4 × 90 liters
  • Drive position: rear
  • Chain width: 650 mm
  • Ground pressure : 0.82 kg / cm²
  • Ground clearance: 460 mm
  • Overall length: 9850 mm
  • Overall width: 3070 mm
  • Height: 2180 mm
  • Pipe overhang: 3210 mm
  • Ford depth: 1.3 m
  • Trench crossing ability: 2.5 m
  • Crew: 4 or 5 men
  • Years of construction: 1944–1945
  • Number of pieces: 1735

literature

  • Солянкин А. Г. и др .: Советские тяжёлые самоходные артиллерийские установки 1941–1945 гг.
    (Soljankin AG et al .: The Soviet heavy self-propelled artillery 1941–1945 ). Exprint, Moscow 2005, ISBN 5-94038-080-8 )
  • Alexander Lüdeke : Weapons Technology in the Second World War . Parragon Verlag, Cologne, ISBN 978-1-4054-8584-5 .

See also

Web links

Commons : ISU-122  - Album with pictures, videos and audio files