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Asu-85

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Title: Asu-85  
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Subject: ASU-57, ASU, Samokhodnaya ustanovka, Airborne gun, BWP-2000
Collection: 85 Mm Artillery, Airborne Fighting Vehicles, Cold War Armoured Fighting Vehicles of the Soviet Union
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Asu-85

ASU-85
ASU of the Polish 6th Air Assault Division
Type Self-propelled gun
Place of origin  Soviet Union
Service history
In service 1959 - 1993
Used by  Soviet Union
Production history
Designer Astrov Design Bureau
Designed 1951-1959
Manufacturer MMZ and PMZ
Produced 1959-1966
Specifications
Weight 15.5 tonnes (34,171 lbs)
Length 6 m (19 ft 8 in)
Width 2.8 m (9 ft 2 in)
Height 2.1 m (6 ft 11 in)
Crew 4

Armor 40-45 mm
Main
armament
85mm main gun D-70 (2A15)
Secondary
armament
7.62mm PKT or SGMT coaxial machine gun
Engine YaMZ-206V V-6 inline water-cooled diesel
210hp (154 kw)
Transmission mechanical
Suspension torsion bar
Fuel capacity 400 l
Operational
range
230 km (161 mi)
Speed 45 km/h (28 mph)

The ASU-85 (Russian: Авиадесантная самоходная установка, АСУ-85, Aviadesantnaya Samokhodnaya Ustanovka, 'airborne self-propelled mount') is a soviet-designed airborne self-propelled gun of the Cold War Era. From 1959 it replaced the open-topped ASU-57 in service but was in its turn replaced by the BMD-1 from 1969.

Contents

  • Development history 1
  • Design 2
  • Service history 3
  • Variants 4
  • Operators 5
  • Surviving vehicles 6
  • References 7
  • External links 8

Development history

Development of a new assault gun for the armed forces started at the OKB-40 design bureau of the Mytishchi Machine Building Plant (MMZ), under the supervision of chief designer Nikolaj Aleksandrovich Astrov. The first Ob'yekt 573 prototype was ready for factory tests in the second half of 1953. This first vehicle was followed by a small batch of three improved vehicles that were evaluated by the armed forces in 1956-1957. The improved vehicles were powered by a new, horizontal six cylinder diesel engine, the YaMZ-206V, instead of the original V-6 of the PT-76. In 1958 the order to start series production of the SU-85 - as it was initially known (although there was already a vehicle with that same name, based on the T-34) - was given. However, as a result of an order from the Ministry of Defense to add an armoured roof (the initial vehicles were still open-topped), series production could only begin in 1961. By then, the configuration was already out of date and in the second half of the 1960s the VDV became the main operator of the SU-85 and renamed it into ASU-85.

Design

The SU-85/ASU-85 is based on the PT-76 tank chassis, but without the amphibious capabilities and fitted with a new engine. The vehicle has three compartments: the driver's in front, the combat compartment in the center, and the engine compartment at the rear.

The armament consists of a D-70 (2A15) 85mm gun, derived from F.F. Petrov's D-48. The L/67 ordnance has a total weight of 1,865 kg and an elevation range from -4.50° to +15°. Traverse is 15° either side. The D-70 fires the same ammunition as the D-48 (3BK-7 HEAT, BR-372 HVAP-T and OF-372 HE), the combat load is 45 rounds. The gun has an effective range of 1,150 m and a maximum range of 10 km. The coaxial machine gun is either the SGMT or the PKT with a combat load of 2,000 rounds.

Both the main gun and the coaxial machine gun are aimed by means of the TShK-2-79 sight. For nighttime fire, the TPN1-79-11 sight is used, in combination with the IR searchlight L-2. Indirect fire is conducted with the help of the S-71-79 and PG-1 sights. Furthermore, the commander is provided with observation devices TNPK-20 (day) and TKN-1T (night).

All ASU-85s were provided with an R-113 radio and the R-120 intercom system. In the early 1970s, some vehicles were fitted with a DShK-M 12.7mm heavy machine gun with 600 rounds. These vehicles had a reduced combat load of 39 main gun rounds and received the NATO designator ASU-85 M1974. The original designation was SU-85M or ASU-85M. The ASU-85 could also be equipped with smoke generators BDSh-5.

Service history

The Soviet Airborne Forces used the ASU-85 in airborne operations. Its primary role was light infantry support or assault, with limited anti-tank capability. Each Airborne Division had one assault gun battalion with 31 ASU-85. The Polish 6th Pomeranian Airborne Division (Polish: 6 Pomorska Dywizja Powietrzno-Desantowa) had an equal number.

The ASU-85 became possible with the introduction of the Mi-6 and Mi-10 helicopters and high-capacity multi-chute and retro-rocket systems for fixed wing-drops. It was first observed by NATO in 1962, and was widely used by Soviet and Polish airborne units.

Variants

There are no variants of the ASU-85, but its chassis served as the basis for other designs such as the chassis GM-575 of the ZSU-23-4 "Shilka" and the GM-568 and GM-578 chassis' of the launch vehicle 2P25 and radar vehicle 1S91 of the 2K12 "Kub" system.

Operators

 East Germany
 Poland
  • Ludowe Wojsko Polskie received 31 ASU-85s in 1966. All were assigned to the 35th Self-propelled Artillery Squadron (Polish: 35. Dywizjon Artylerii Samobieżnej) of 6th Pomeranian Airborne Division (Polish: 6. Pomorska Dywizja Powietrzno-Desantowa) in Cracow. All were withdrawn in 1976 and unit was disbanded.
 Soviet Union

Surviving vehicles

ASU-85 at the Muzeum Polskiej Techniki Wojskowej in Warsaw.
ASU-85 at theMuseum of Polish Arms in Kołobrzeg.

References

  1. ^ Militarne Podróże
  • Gunston B., 'Army Weapons', in: Bonds R. (ed.), Soviet War Power, (Corgi 1982), p. 203-204
  • Zaloga, Steven J., Hull, Andrew W. and Markov, David R. (1999). Soviet/Russian Armor and Artillery Design Practices: 1945 to Present. Darlington Productions. ISBN 1-892848-01-5
  • Solyankin, A.G, Zheltov, I.G and Kudryashov, K.N. (2010). Otechestvenniye Bronirovanniye Mashiny - XX Vek, Tom 3: 1946-1965, "Tsejkhgauz". ISBN 978-5-9771-0106-6.

External links

  • http://www.inetres.com/gp/military/cv/at/ASU-85.html
  • http://desantura.ru/articles/15/?PAGEN_1=3
  • Pictures
  • Pictures
  • Pictures of Kubinka vehicle
  • Picture of ASU-85M on display
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