military experts
EnglishРусский中文(简体)FrançaisEspañol
Set as default language
 Edit Translation

ACS 2S7 "Pyon" (2S7M «small») – 203-mm self-propelled gun


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

Creating a 203-mm self-propelled gun 2S7 "Pion" also began with the USSR Council of Ministers Resolution of 1967 g. On the instructions of the new weapon was easily destroy concrete, reinforced concrete and earthworks, destroy the long-range artillery, installation of tactical missiles and other means of delivery of nuclear warheads. The firing range was to be no less than 25 000 m. Soon, the Ministry of Defense of the USSR there were several options for future self-propelled. At the beginning 1969 g. 203-mm caliber, was adopted. The main "Peony" developer appointed Leningrad Kirov factory.

ACS 2S7 "Pyon" (2S7M «small») – video

AT 1975 g. new ACS was put into service, and from next year become a mass-produced and enter the artillery brigade of special power. 2C7 "Peony" is designed to suppress and eliminate nuclear attack weapons (SYaN), artillery, mortars, equipment, rears, command and control points, enemy personnel.
Chassis is a self-propelled undercarriage modernized version of the T-80. It includes 7 rollers aboard, front wheel drive layout. guides, located behind, installed before opening fire on the ground, playing the role of auxiliary supports. With the same purpose in the self-propelled gun used coulter, shaped like a dozer blade. He is attached to the stern of the ACS, and is driven by a hydraulic actuator. Power supply hydraulic and electric systems is carried out independently by setting optional diesel-unit 9R4-6U2. The machine Individual torsion suspension.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

Armored Corps "Peony" unusual shape with the taken far forward cockpit additionally serves as a counterweight to the heavy gun installation. For cabin crew, in the bow is the engine-transmission compartment with a 12-cylinder, V-shaped, In a four-stroke diesel engine-46-1 liquid cooling supercharged. In self-propelled mechanical planetary gearbox with 8 speeds (one back) and single-side transmission planetary reduction gear.
The primary self-propelled weapons used 203 mm cannon 2A44 weight 14,6 t, openly installed in the rear of the machine. An instrument created by the classical scheme with some innovations. Demountable gun barrel consists of a free pipe, housing, breech, couplings and bushings. This constructive solution allows to simplify the replacement of the threaded part of the tool, making it possible to this procedure in the field artillery workshops. The gun is also equipped with a push-pull bolt action, firing mechanism, chain mechanism with hydraulic loader.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

If the supply is fired from the ground, the calculation uses a two-wheeled cart, in which the charges and projectiles stacked on removable stretcher. It is possible to increase the rate to 1,5 rounds per minute. gun ammunition consists of 40 rounds of separate loading with Combustible his cap. However, only 4 of them are stored in the aft, representing the emergency reserve. Others are transported by road transport and laid on the ground. The range is quite varied ammunition guns: 203-mm rounds and ZVOF43 ZVOF42 with high-explosive projectiles 30F43; ZVOFZ5 shots with active-reactive high-explosive shells ZOF44; ZVOF15 shots and ZVOF16 with fragmentation shells with ready-striking elements of 3-O-14.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gunWhen pointing the gun used electro-mechanical actuators. "Peony" is also equipped with mechanical sight D-726, panorama PG-1M, collimator K-1 and OP-gun 4M, necessary for direct fire. As additional arms used MPADS 9K32 "Arrow 2" and rocket-propelled grenade RPG-7. Crew includes self-propelled 13-14 people, seven of whom are crew and are always in the car. In the department of management jobs are located the driver, gunner and commander, the remaining four crew representatives are located in the compartment for the crew in the center of the machine. Other members of the calculation follows the self-propelled machine in transportnozaryazhayuschey.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

"Peony" is able to take part in operations with the use of nuclear weapons. It has a filter-ventilation installation, automatic fire alarm system, crew compartment sealing system, protect people from the effects of chemical, bacteriological and nuclear weapons. Besides, It equipped with a self-propelled apparatus TPU P-120 internal telecommunication, radio P-123 or P-123M, night vision TVN-3.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

SAU 2S7M "Malka"

In the 1980s, there is a need of modernization of ACS 2S7. Therefore, development work was opened under the code "Malka" (GRAU index - 2S7M). First of all, I raised the question of the power plant replacement, as the engine B-46-1 did not have enough power and reliable operation. For "Malki" was developed by the engine B-84B, different from those used in the T-72 engine layout features in engine-transmission compartment. With the new engine the ACS could not refuel only with diesel fuel, but also kerosene and gasoline. Modernization undergone and chassis of the machine. In February 1985 SAU year with a new power plant and an upgraded chassis has undergone tests. According to the results of modernization resource motocross SAU was extended to 8000-10 000 km.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

To receive and display information from a senior officer of the machine places the battery commander and gunner are equipped with digital displays with automatic reception of data, thereby reducing the transfer time of the machine from marching into the firing position and back. Due to the changed structure of packings Ammunition was increased to 8 shots. New loading mechanism will allow for the loading of weapons at all angles vertical lay. Thus the rate was increased to 1,6 fold (to 2,5 rounds per minute), a ceasefire - in 1,25 fold[2]. To track important subsystems of ACS was installed equipment procedural control, continuously monitors nodes arms, engine, hydraulic power units and. Serial production of ACS 2S7M was launched in 1986 year. Besides, machine the crew was reduced to 6 human.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

Performance characteristics 2S7 "Pion"

years of operation……………………from 1975
The number of issued, PC……………………more 500

dimensions

body Length, mm……………………10 500
Length with gun forward, mm……………………13 200
housing width, mm……………………3380
Height, mm……………………3000
Clearance, mm……………………400

booking

Type broni……………………bulletproof
housing forehead (through), mm / city……………………12
body board, mm / city……………………8+13
Bottom, mm……………………8—16

weaponry

Caliber guns and stamp……………………203-mm 2A44
gun type……………………nareznaya gun
barrel length, calibres……………………55,3
gun ammunition……………………4
firing range, km……………………8,4…47,5
Shotgun……………………1 × 12,7-mm NSVT

Mobility

engine's type……………………B-46-1
Engine power, l. from……………………780
Road speed, kmh……………………50
Cruising on the highway, km……………………675
The capacity of the fuel tanks, l……………………1280
power density, l. p. / m……………………17,25


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

Accommodation units in the building automatic control system 2S7 "Pion"


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

ACS 2S7 "Pyon" – photo from the firing position. opener omitted, loading mechanism is in the operating position.
The tray loading rod stacked projectile, nearby there is a trolley for transporting shells.


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun


		ACS 2S7 «Peony» (2S7M «Small») - 203-mm self-propelled gun

A source

                          
Chat in TELEGRAM:  t.me/+9Wotlf_WTEFkYmIy

Playmarket

0 0 votes
Article Rating
Subscribe
Notify of
guest
0 comment
Inline Feedbacks
View all comments