Self-propelled antitank gun 2S25 “Octopus-SD” established in the early 90s. on the extended (on two rollers) based combat vehicle BMD-3 Joint-Stock Company “Volgograd Tractor Plant”, and the artillery unit to it – on artillery factory N9 (g. Ekaterinburg). Unlike towed artillery systems “Octopus-B” new ACS received the name “Octopus-SD” (“self-propelled”, “desantiruemye”).
ACS 2S25 Sprut-SD – video
Originally intended for the Airborne and designed for parachute landing with a crew of military transport aircraft Il-76, currently offered gun and Marines to provide fire support and anti-tank during amphibious operations.
One of its first performance took place 8 May 2001 g. on the tank firing range "Prudboy" North-Caucasian military district for the representatives of Russian power ministries and foreign military and diplomatic corps of 14 foreign countries of Southeast Asia, Middle East, Africa and South America.
appointment
125-mm self-propelled antitank gun 2S25 “Octopus-SD” designed to engage technology, including armored, and manpower of the enemy during the action as part of departments of land and airborne troops, and Marine Corps.
Outwardly, it looks like a normal tank and combines the capabilities desantiruemye floating airborne combat vehicle with a main battle tank. Outwardly, "Sprut-SD" is no different from the usual tank and has no analogues abroad.
Key Features
According to experts, new ACS, in appearance and firepower comparable to a tank, characterized maneuverability desantiruemye BMD-3 and has no analogues abroad. Besides, “Octopus-SD” It has a unique hydro-pneumatic chassis, allowing combat vehicle smoothly and quickly move in rough terrain at speeds up 70 mph, which significantly improves the conditions of firing on the move.
Besides, “Octopus-SD” can overcome the water barrier at a rate to afloat 10 mph. This was confirmed by tests in the North Sea, when a storm to 3 BM points confidently led fire on designated targets. The machine can parachute from a cargo ship on the water surface and automatically returns to the ship. Marked and other qualities in conjunction with rotation of the circular turret and weapon stabilization to allow the use of two planes “Octopus-SD” as a light amphibious tank.
General device
BM casing is divided into branch management (front end), fighting compartment with a tower (middle part) and a motor-transmissionnoe compartment (aft).
In the stowed position, the vehicle commander to the right of the driver, and the gunner on the left. Each crew member has a built-in roof of the observation device with day and night channels. Combined sight commander stabilized in two planes and is aligned with a laser sight for aiming 125mm shells by laser beam. Gunner with a laser rangefinder is stabilized in a vertical plane.
weaponry
125-mm smoothbore gun 2A75 is the primary armament CAU “Octopus-SD”. The gun is designed on the basis of 125-mm tank gun 2A46, which is installed on the T-72, T-80 and T-90, When mounted on a lightweight chassis gun was equipped with a new type of recoil device, can be rolled back no more 700 mm. Installed in the fighting compartment smoothbore gun of high ballistics equipped with a computerized fire control system with jobs commander and gunner, which are functionally interchangeable.
The auxiliary arms SAU “Octopus-SD” It equipped with a coaxial gun 7.62mm gun with ammunition from 2000 rounds, outfit in one tape.
Gun without muzzle brake equipped with ejector and thermo-insulating cover. Stabilization in the vertical and horizontal planes can fire 125-mm ammunition separate-case loading. "Sprut-SD" can use all kinds of 125-mm ammunition domestic, including feathered armor-piercing shells and anti-tank tank. In gun ammunition (40 125-mm rounds, of them 22 in the autoloader) may include laser-guided projectile, provides defeat the purpose, located at a distance of 4000 m. The gun can fire afloat in rough up 3 points in the sector of ± 35 °., the maximum rate – 7 rounds per minute.
Horizontal automatic loader guns carousel installed for the tower machines. It is a collection of nodes and mechanisms – Rotating conveyor 22 ready for immediate use shots, chain mechanism of the cassette lift with a shot, mechanism of removal of spent pallets catcher, chain rammer shot from the cartridge into the gun, hatch drive ejection tray and rolling, Electromechanical stopper gun on carbon loading, Control block. Cassette, with separately placed in their shells and charges, installed in the conveyor loading angle machine, equal to the angle of loading gun. When the loading into the breech of the gun is first supplied projectile, then the propellant charge in the sleeve-cap polusgoraemoy. In case of failure of the automatic loader, possibly loading the gun manually.
To provide increased rollback automatic loader has a widened cassette lift frame. The mechanism of capture and removal of spent pallet allows the passage therein of cartridge tray temporarily overlap the back side end portion of the cannon breech. This allows the subsequent movement of spent pallet cleaning system purge air cannon breech zone and work crew place using a rotating device. The lower part of the crew compartment is mounted rotatable about the vertical axis of the conveyor autoloader, allowing crew to move inside the machine from the crew compartment in the control room and back along the sides of the body.
fire control system
It includes sighting system gunner (day and night sights with vertical stabilization of sight, digital ballistic computer, laser rangefinder); the commander of the combined function of sight with day / night sight with laser rangefinder and stabilized field of view in two planes, as well as guidance on the target device controlled missile complex 9K119M; set of sensors to automatically enter corrections taking into account the atmospheric parameters, charge temperature, barrel wear and curvature etc..
Computerized fire commander with the working space management ensures observation of the terrain at a stabilized sight, target search and target information by using the optical system of the commander sight; combining in a commander's sight Trigger functions and missile control with aimed fire artillery shells; duplication ballistic computing device instrument complex gunner; autonomous switching and control actuators guidance and automatic loader guns; rapid transfer complex control by the gunner to the commander and vice versa.
Powerplant and chassis
Has much in common with the BMD-3, whose base has been used in the development of ACS 2S25 “Octopus-SD”. Mounted on her multi-fuel diesel engine with a maximum power 2V06-2S 510 kW interlocked with hydromechanical transmission, hydrostatic steering gear and power take-off for the two water jet Movement. Automatic transmission has five forward gears turn and the same reverse gear.
individual, gidropnevmatičeskaâ, variable with the driver's seat clearance (for 6-7 with by 190 to 590 mm) chassis suspension ensures high throughput and a smooth ride. Chassis for each board includes seven uni-directional rubber road wheels, four support rollers, rear drive wheel and steering wheel front location. There is a hydraulic mechanism steel tension, dvuhgrebnevyh, lantern meshing caterpillars with rubber mount, which can be equipped with rubber pads.
The march to 500 km car can travel on the highway with a maximum speed of up to 68 kmh, of dry dirt roads - an average speed 45 kmh.
Two water jets allow movement 2S25 self-propelled guns through the water at speeds of up to 10 kmh. To increase the buoyancy installed on the machine wheels with closed airbags and powerful water pumps, water efflux from the housing. The machine has a seaworthy and can effectively act afloat, including conduct aimed fire in front of fire sector 70 city., with waves in the 3 points.
In addition to the specified standard equipment of the machine includes a system of protection against weapons of mass destruction and a set of night vision devices.
HEALTHY “Octopus-SD” BTA can be transported by planes and landing ships, parachute parachute way with the crew inside the machine and without preparation to overcome water obstacles.
Interesting
Armies of many countries in recent years special attention to lightly armored military equipment as the basis for a rapid reaction force. The fight against international terrorism and peace-keeping operations in the areas of local conflicts demanded the creation of highly functional and flexible “Future Combat Systems”.
In this plan, by foreign experts evaluation, it was Russia that has the greatest potential in the field of light armored equipment desantiruemye. Russian Armed Forces are already equipped with effective patterns of light (to 18 tonnes), high permeability, aviatransportabelnoy armor, able to perform tasks autonomously, in isolation from the main forces and rear parts, as well as any conditions (including in difficult and remote areas, in mountainous terrain, in the desert and the coast).
Besides, According to experts, this class of combat vehicles has considerable export potential. It is these machines can be used as the basis for equipping the mobile component of the armed forces and intelligence services of any state.
The validity of this opinion confirms the SAU “Octopus-SD”. After her demonstration at the site, many military attaches recognized, that combat and operational capabilities it surpasses all existing foreign analogues. So, no machine in the world can not be used in the mountains at an altitude of 4000 m, change in the clearance 400 mm, swim at sea state up 3 points, to go and to come out of the water on landing craft and parachute and crew.
Tests and adoption
AT 1984 year was approved by the tactical and technical requirements to create a 125-mm self-propelled anti-tank gun desantiruemye "Sprut-SD", 20 October 1985 , the decision of the Military-Industrial Commission of the Council of Ministers of the USSR was officially launched development of a new 125-mm TEPS for Airborne USSR. In February 1986 , the landing of funds for the development of ACS 2S25 was initiated. landing funds received P260 designation and created on the basis of parachute-reactive agents P235, destined for landing BMP-3. Since 1990 by 1991 years were spent state tests ACS 2S25. However, the P260 test system revealed its shortcomings, the main ones are: the complexity of the operation, the high cost of manufacturing, complexity cassette unit parachute jet engine braking. 30 May 1994 the decision of the Russian Air Force, Russian Airborne Troops and developer of landing - Moscow plant "Universal" - development of the parachute landing jet means was canceled P260, the same decision, began developing strapdown system P260M landing "Octopus-PDS". AT 2001 ACS, additional tests were conducted 2S25. 9 January 2006 by order of the Minister of Defense of the Russian Federation self-propelled antitank gun 2S25 was adopted by the Russian Army.
Serial production and modification
Besides the basic embodiment SAU "Octopus-SD" for Airborne, It was developed as an option and 125-mm self-propelled anti-tank guns for the Army, received the name "Octopus-CER". Unlike TEPS "Sprut-SD", ACS "Octopus-CER" is not ymela Opportunity desantyrovanyya, and as the base used "glider" multipurpose chassis slight, developed in the design office of the Kharkov tractor plant and is intended to replace the Army tracked tractors MT-LB and MT-LBU. Work on the creation of TEPS "Octopus-CER" on fabrication and prototype testing have not moved. Furthermore embodiment caterpillar, for the Army under the name "Octopus-K" is also considering options of accommodation ACS 2S25 crew compartment on a wheelbase armored personnel carriers BTR-90, However, this version of the Russian army was not adopted.
Evaluation of the machine
Despite, 2S25 self-propelled gun that belongs to a class of anti-ACS, in its capabilities and range of "Sprut-SD 'tasks is easy tank. reason, on which ACS 2S25 was originally classified as an anti-tank gun, was that, ordering that control development work was Grau, which did not have the authority to develop tanks. The main representatives of the previous generation of this class of technology are light tanks PT-76B and object 934. The test results of the tank "Object 934" shown, that on the basic parameters it superior tank PT-76B in armament, and on navigable qualities. In turn ACS 2S25 combines firepower main tank with high performance and maneuverability patency lung tank, which allows it to be a modern replacement tank PT-76B in the Marines and the Army. The use of TEPS "Sprut-SD" in airborne units can solve the problem of combating enemy tanks.
Tactical-technical characteristics 2S25 Sprut-SD
– developer: VgTZ DB-9 TSNIITOCHMASH
– years of development: from 1983 by 2001
– years of production: from 1984 by 2010
– years of operation: from 2005
– The layout: classical
ACS crew 2S25 Sprut-SD
– 3 man
Wes ACS 2S25 Sprut-SD
– 18 tonnes
Dimensions ACS 2S25 Sprut-SD
– body Length, mm: 7085
– Length with gun forward, mm: 9770
– Width, mm: 3152
– Height, mm: 3050
– base, mm: 4225
– Track, mm: 2744
– Clearance, mm: 100…500
Booking rooms ACS 2S25 Sprut-SD
– Type broni: bulletproof
Vooruzhenye ACS 2S25 Sprut-SD
– Caliber guns and stamp: 125-mm 2A75
– gun type: smoothbore gun
– barrel length, calibres: 48
– Initial BPS speed, m / s: 1700
– Penetration BTS at a distance 2 km, mm: 520
– combat rate, rounds / min: 7
– gun ammunition: 40
– Angles BH, city.: —5…+15
– Angles GN, city.: 360
– sights: 1A40-1M, TO1-KO1R, 1K13-3S
– Shotgun: 1 x 7.62mm PKTM
ACS engine 2S25 Sprut-SD
– engine's type: 2AT-06-2FROM
– Engine power, l. from.: 510
Speed ACS 2S25 Sprut-SD
– Road speed, kmh: 70
– Speed over rough terrain, kmh: 45—50, 9 afloat
– Cruising on the highway, km: 500
– Cruising cross country, km: 350
– power density, l. p. / m: 28,3
– suspension type: individual hydropneumatic
– Unit ground pressure, kg / cm²: 0,36—0,53
– Gradeability, city.: 35
– to overcome the wall, m: 0,8
– trench, m: 2,8
– fording, m: floats
Photo 2S25 Sprut-SD
Desantyrovanye ACS 2S25 Sprut-SD
