2S7 Pion | |
---|---|
Type | Self-propelled artillery |
Place of origin | Soviet Union |
Service history | |
In service | 1976–present |
Wars | Soviet–Afghan War First Chechen War Second Chechen War Russo-Georgian War 2020 Nagorno-Karabakh war Russo-Ukraine War |
Production history | |
Produced | 1975–1990 |
Specifications | |
Mass | Whole vehicle: 46,500 kg (102,500 lb) Cannon: 14,600 kg (32,200 lb) |
Length | 10.5 m (34 ft 5 in) |
Width | 3.38 m (11 ft 1 in) |
Height | 3 m (9 ft 10 in) |
Crew | 14 |
Shell weight | 103 kg (227 lb) [1] or 110 kg (240 lb) [2] |
Caliber | 203 mm [1] |
Barrels | 1 |
Carriage | 12 m (39 ft) [2] |
Elevation | 0-60 deg [1] |
Traverse | 30 deg [1] |
Muzzle velocity | 960 m/s (3,100 ft/s) [1] |
Effective firing range | 37.5 km (23.3 mi) (unassisted) |
Maximum firing range | 47.5 km (29.5 mi) (assisted) |
Armor | 10 mm (0.39 in) |
Main armament | 203 mm 2A44 gun L/56.2 |
Engine | V-46-I V12 turbocharged diesel [3] 630 kW (840 hp) [3] |
Suspension | torsion bar |
Operational range | Road: 650 km (400 mi) |
Maximum speed | 50 km/h (31 mph) |
The 2S7 Pion ("peony") or Malka is a Soviet self-propelled 203 mm cannon. "2S7" is its GRAU designation. More than 250 units were built; some sources say 500, [1] others up to 1,000. [4] They were distributed around the former Soviet states during the dissolution of the Soviet Union in 1991.
The 2S7 Pion was identified for the first time in 1975 in the Soviet Army and was called M-1975 by NATO (the 2S4 Tyulpan also received the M-1975 designation), whereas its official designation is SO-203 (2S7). It used a new-design chassis, partly based on T-72 and T-80 design, [1] carrying an externally mounted 2A44 203 mm gun on the hull rear.[ citation needed ] The vehicle is self-entrenching and has an overpressure CBRN defense system. [5] It was reported that the 12 m (39 ft) gun weighs 14.6 t (14.4 long tons; 16.1 short tons) and has a service life of 450 rounds. [2]
There are several manufacturers: the chassis was made at the Kirov Factory, St. Petersburg, Russia, while the gun and mount were made at the Titan-Barrikady plant in Volgograd, Russia. [3]
The Malka modernization process in the late 2010s involved substituting several of the Ukrainian-produced components, such as the gearbox and engine, with new components manufactured in Russia at the Uraltransmash plant in Yekaterinburg. [6]
The 2S7 uses a tracked chassis that was designed specifically for this artillery system. It uses a number of automotive components from the T-72 and T-80 main battle tanks. It is powered by a V-46-I turbocharged liquid-cooled V12 diesel engine, [1] developing 560 kW (750 hp) (or 630 kW (840 hp) [3] ). It is also fitted with an auxiliary power unit, developing 18 kW (24 hp) and powering all systems when the main engine is shut down. [7]
The 2S7 carries a crew of fourteen and eight rounds of ammunition; seven crewmembers and four rounds are carried by the Pion, with the remaining crew and rounds in an auxiliary vehicle. [7]
It takes the crew about six minutes to set up and five minutes to dismantle. The vehicle carries four 203 mm projectiles for immediate use. The gun is capable of firing nuclear ammunition. [8] The gun has a range of 37.5 km (23.3 mi), but this can be extended to 55.5 km (34.5 mi) by using a rocket-assisted projectile. [7] One interesting feature of the Pion is the firing alarm. Because the blast of the weapon firing is so powerful, it can physically incapacitate an unprepared soldier or crew member near it from the concussive force, the Pion is therefore equipped with an audible firing alarm that emits a series of short warning tones for approximately five seconds prior to the round being fired. [6]
The original version is known as the 2S7 Pion.
An updated version called the 2S7M Malka entered service in either 1983 or 1986. [18] The 2S7M Malka uses an improved fire control system that increased the rate of fire from 1.5 to 2.5 rounds per minute, and increased the ammunition load to eight projectiles. [19] [20] [18]
The BTM-4 Tundra trench digger shares the 2S7 Pion chassis. [7]
Although no figures have been released, it is estimated that well over 1,000 have been built. [4] The Soviet Army had 347 in active service as of 1990. [1]
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