2S7

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2S7 pioneer
2S7 Pion in the Artillery Museum in Saint Petersburg

2S7 Pion in the Artillery Museum in Saint Petersburg
General properties
crew 7 (commander, driver, radio operator, gunner, three loaders)
length 13.12 m (length with gun in 12 o'clock position)

10.50 m (without gun length)

width 3.38 m
height 3.00 m
Dimensions 46 tons
Armor and armament
Armor Max. 10 mm (steel)
Main armament 1 x 203.2 mm
agility
drive V12 diesel engine W-46-6 or W-84
840 PS (618 kW)
suspension Torsion bar
Top speed 50 km / h (road)
Power / weight 18.06 hp / ton
Range 450 km (road)

The 2S7 ( GRAY index , Russian Pion peony ; NATO designation M-1975 ) is one in the Soviet Union developed in the early 1970s, heavy gun on self-propelled gun . With a caliber of 203 mm and a combat weight of 46 t, it is the world's heaviest conventional artillery piece.

history

In 1975 she was put into service with the Soviet Army and used in the artillery regiments of the fronts . Its counterpart in the arsenal of NATO countries was the 203 mm howitzer M110 .

construction

The hydraulically operated earth spur at the rear of the vehicle

The 2S7 has a chassis that is derived from the hull of the T-64 main battle tank . It has a torsion bar sprung support roller drive. The crew's armored cabin is at the bow, with the gun behind it. In order to increase the stability when shooting, there is a hydraulically operated earth spur at the rear , and it is also possible to lower the vehicle with the tub to the ground , similar to the Karl mortar .

The weapon has a screw cap and a mechanical loader that allows a rate of fire of two rounds per minute. Four shots can be carried on the 2S7 and eight shots on the improved version 2S7M Malka . The range for firing standard ammunition is 37.7 km, for extended range ammunition 47 km. In 2015, a modernized "2S7SM" version of the self-propelled gun was officially introduced in the Russian army. Their firing interval is up to 3 shots per minute, with rocket-supported projectiles a projectile range of 55 kilometers is achieved.

Further technical data

Ukrainian 2S7 during an exercise
Video of a Russian 2S7 battery at a practice shooting in 2019
  • Elevation range: 0 ° / + 60 °
  • Side straightening range 30 °
  • Ground clearance: 0.40 m
  • Fordability: 1.2 m
  • Ground pressure : 0.80 kg / cm²
  • Engine: V12 diesel with 840 hp (other sources 744 hp)
  • vertical obstacle height: max. 0.70 m
  • Ability to cross trenches: max. 2.60 m
  • NBC protection: No.
  • Night vision equipment: infrared vision device for the driver
  • Variants: 2S7M Malka with more reserve ammunition (+4) and slight construction differences

User states

Current users

  • AngolaAngola Angola - As of January 2018, there are 12 2S7 in service.
  • AzerbaijanAzerbaijan Azerbaijan - As of January 2018, there are 12 2S7 in service.
  • GeorgiaGeorgia Georgia - As of January 2018, 1 2S7 is on duty.
  • RussiaRussia Russia - As of June 25, 2018, there are 60 2S7Ms and 12 2S7SMs in service.
  • UzbekistanUzbekistan Uzbekistan - As of January 2018, there are 48 2S7 in service.
  • UkraineUkraine Ukraine - As of January 2018, there are at least 6 2S7 on duty.

Individual evidence

  1. ↑ 2S7 203mm Self-Propelled Gun. In: fas.org. Accessed August 29, 2018 .
  2. ↑ Кемеровских военных вооружили дальнобойными САУ "Малка". военное.рф, June 25, 2018, accessed June 29, 2018 (Russian).
  3. ↑ a b c d e f The International Institute for Strategic Studies (IISS): The Military Balance 2018 . 1st edition. Routledge, London 2018, ISBN 978-1-85743-955-7 (English, January 2018).
  4. ↑ Артиллеристы ЦВО в Сибири получили новейшие самоходные пушки «Малка». June 25, 2018, accessed on June 29, 2018 (in Russian, among other things 12 additional 2S7SM were handed over to an artistry unit).

Web links

Commons : 2S7 Pion  - Album with pictures, videos and audio files