Light assault
Acceptance of new families of 4x4, 6x6 and 8xNNXX vehicles - “Uralskiy” “Motovozov” and KamAZ-ovskiy “Mustangov” to the Russian army - did not solve the issue of a new, upgraded light car for replacing the good old UAZ vehicles. Meanwhile, such a vehicle, both as a transport vehicle and as a highly mobile air transport platform for installing special equipment and some weapons, is urgently needed for modern armed forces, as well as for other power departments of the state. On the other hand, local military conflicts, counterterrorism and peacekeeping operations have revived interest in this type of combat vehicles, as light armored vehicles on all-wheel drive all-terrain chassis.
Starting from the 1980's. there is a process of the return of armored cars to the armed forces of various countries as patrol and reconnaissance vehicles, light armored personnel carriers, sanitary-evacuation vehicles, carriers or armament tractors. Interest in them has grown particularly in the experience of military conflicts of the first decade of the 21st century. In leading countries, programs for creating multipurpose unarmored and armored vehicles of the “light” and “medium” categories have been opened (for example, the American JLTV program, the German AMPV).
In Russia in recent years, a number of 4x4 wheel formula machines have been introduced, designed to fill these “niches”. Some of them have passed certain stages of testing in the Armed Forces. Among them are the “light assault vehicle” of the LSHA and the “light assault vehicle armored” of the LSHA-B, developed and presented by the Zashchita corporation (previously known for special car booking operations). Let us consider these machines in more detail as one of the interesting examples of solving the above problems. Moreover, against the background of procurement plans for the domestic Armed Forces of vehicles based entirely on foreign chassis.
Easy "assault"
The definition of “light assault vehicle” is an almost literal translation of the English-language Light Strike Vehicle (LSV). It is precisely the “assault” (or “percussive”, as “strike” can be translated) that include a number of military vehicles of the “light” and “middle” class of the new generation. The point, apparently, is not only in the "spectacularity" and the catchiness of such definitions. In the circle of tasks solved by multi-purpose off-road vehicles, the “combat” component, the tasks of combat support, noticeably increased.
The appearance of LSHA is connected with foreign experience.
In 2007, Zashchita Corporation participated in the competition for a hard armored multi-purpose vehicle for the armed forces of the Republic of India. An armored version of a significantly reworked UAZ “Bars” vehicle with a three-door body, diesel engine installation and a “right-hand drive” vehicle was presented in accordance with customer requirements. At the final stage of the competition, the requirement of independent suspension of the car wheels was also determined, which caused further design changes. Finally, in 2009, the Indian military announced a need for a “light assault” (shock) car. This prompted Zashchita Corporation to develop its own chassis.
The prototype of the new car was ready by August 2010. The Indian order was not received by the corporation, but the GABTU representatives of the Russian Defense Ministry were interested in the “light assault vehicle” (LSHA). In September, 2010 was the first samples transferred for trial operation in the army. From the autumn of 2010 to the summer of 2011, a total of ten conventional and two armored vehicles passed the trial operation (including on the basis of the 45-th separate regiment of the special forces of the Airborne Forces and 56-th separate airborne assault brigade). In parallel, laboratory tests were carried out at the Research and Testing Center for Research and Development Prospects for Automotive 3 Central Research Institute of the Ministry of Defense of the Russian Federation (formerly 21 th Test Defense Ministry Institute) in Bronnitsy near Moscow. According to the experience of these tests, tactical and technical requirements for automobiles were clarified, a substantial revision of their design was carried out, and in September 2011 the current shape of LSHA and LSHA-B actually took shape. These machines also have commercial designations - “Scorpion-2M” and “Scorpion-B”, respectively.
LSHA is somewhat "knocked out" of the usual number of off-road vehicles with its carrying capacity. With a sufficiently limited size and curb weight (together with the driver) 2400 kg, its capacity has been increased to 1000 kg. In combination with a well-arranged cabin, this allows a light car to transport eight (including the driver) fully equipped fighters, practically one motorized unit or group, when it comes to special forces. The flat cab floor, folding removable seats and wide rear doors facilitate the use of the LSHA for transporting wounded on stretchers, transporting heavy weapons (such as an 82-mm mortar with crew and ammunition), bulky cargo, and also a vehicle for mounting special equipment and radio equipment etc. Possible to install automatic weapons, ATGM, MANPADS.
As already noted, a ready-made domestic or foreign chassis was not taken for the new car - it was created anew with the use of ready-made or modified units. From the point of view of "localization" of supplies, at present the chassis is "mixed." For example, the Andoria diesel engine is of Polish production (engines of the Andoria engine factory in Andryukhov are generally widely supplied to Russia), 5-ST-Penchaty gearbox - Korean company Daimos (the same box stands on UAZ-3159 ” Bars "Ulyanovsk Automobile Plant; lightweight all-terrain" Scorpion-1 ", presented by the corporation" Protection ", made on the basis of UAZ-3159), transfer case similar to that installed on the GAZ-66, tires - a widespread brand" Cooper Discover "STT, the main gear, suspension units - self-developed, hydraulics - domestic suppliers, etc.
However, Zashchita Corporation announced the possibility (upon receipt of a serial order) of an almost complete transfer of ASH to components of domestic production, including the organization of licensed production of engines. The basis for the direct production of cars can become the existing enterprise of the corporation in the Moscow suburb of Fryazino.
The chassis of the car - frame construction, with a powerful in-line 4-cylinder diesel engine with turbocharging, all wheel drive with cross-wheel interlocks, independent suspension of all four wheels. The need to ensure high mobility in both unarmored and armored vehicles required an engine of at least 100 kW (136 hp). The specialists of Zaschita together with the specialists of Andoria carried out the corresponding modifications of the Polish diesel engine, and now the LSHA and LSHA-B are presented with the engine of the Andoria 0501ADCR of such power.
The transmission is manual, with a 5-step gearbox, synchronized on all direct gears, and a two-stage transfer case with switchable front-wheel drive. Two fuel tanks are placed on the sides along the frame side members. The suspension of all wheels is independent, spring-mounted, on double wishbones, with helical coil springs and double-acting telescopic hydraulic shock absorbers on all wheels. Brakes on all wheels - disc with anti-lock system. The width of the track is close to the army trucks, which not only increases the capacity and lateral stability of the vehicle, but also facilitates movement in a convoy along bad roads.
A set of controls and instruments ensures that the driver is below the average qualification of the driver, i.e. an ordinary conscript soldier. There are power steering, hydraulic drive and brake servo booster. Easy access to the engine compartment and transmission units facilitates maintenance and repair in field conditions. A version of the LSHA ("Scorpion-2M") with a propulsion unit in the "Arctic" version - with a heater is presented.
Multipurpose designation contributes to the modular design of the case, made up of replaceable forged panels. The manufacturer can assemble a car in a version with a rigid cab and an awning, with a rigid cab and a rigid top (with a round top hatch that allows the installation of weapons), with an open body and a rigid safety cage. Replaceable removable panels facilitate machine repairs. On the body there are fixtures for mounting camouflage nets and other masking material.
A set of devices is quite typical for a modern SUV, designed not for racing on the beach, but for use in extreme conditions - a frame for a spare wheel, a winch for self-pulling, reinforced bumpers, front and rear tow hooks, fixtures for mounting the luggage compartment on the roof of a rigid body , cargo shelves on the sides of the body, etc.
Light armored
Armored LSHA-B really belongs to the category of "light." It is enough to compare its total mass (4,5 t), say, with domestic MIC-3927 "Wolf" (7,5-11,5 t), MIC-233114 "Tiger-M" (7,8 t), MIC-3924 "Bear" (12 t) , KAMAZ-43269 “Shot” (10,5 t), South African “Mamba” Mk II (6,8 t) and RG-31 “Nyala” (8,4 t), Polish “Tour” (6,2 t). It is curious that even on the eve of World War II, armored cars of up to 7 tons were considered “light”. The capacity of the LSHA-B exceeds such representatives of armored cars of the “light” category, such as the British triple S52 “Shorland” (4,4 t), and is close German LAPV "Enok" (5,4 t).
LSHA-B is made on LSHA chassis. To increase its mobility in the future, it is possible to use a diesel engine with a power of 115 kW (156 hp). The frame is reinforced and supplemented with brackets for fastening the armored hull (protective capsule) and fuel tanks, the suspension is reinforced. Modern “armored cars” are largely different from their predecessors in the localization of reservations. So in LSHA-B only the “habitable compartment” was booked. The task of such a “cap” booking is not to turn the car into a “wheeled light tank,” but to increase the chances of the crew and the landing party for survival in the event of shelling or undermining, without reducing the mobility of the SUV.
The armor case is welded from armor steel, the welds outside are reinforced with overlays, and the windows are made of armor glass. In accordance with the tactical and technical requirements, armored case and bulletproof glass provide all-round protection in 5 class according to GOST R 50963-96 (“Protection armored special cars”). More precisely, the frontal, aft, and side projections are protected from falling normal by PS bullets of the automatic 7,62-mm cartridge with a heat-treated steel core (AKM machine gun) and LPS bullets of the 7,62-mm sniper rifle cartridge (SVD rifle) with a non-reinforced steel core when shelling with a XN range 5 -10 m; the roof, corresponding to the 3 class according to the same GOST, protects from the same bullets when they are hit at an angle to the normal 45 ° and more. In addition to the mechanical properties of the actual armor, security is ensured by the spaced-apart hull structure.
Protected explosion-proof fuel tanks are taken out of the armored hull and mounted on the frame along the sides. Cellular filler reduces the risk of detonation of fuel vapor; self-covering coating prevents fuel from leaking out in case of damage (for example, in the case of a small shard or small-caliber bullet). The power plant and transmission assemblies are not armored, but the wheels are made resistant to fire due to plastic rigid inserts that limit the deformation of the tire, allowing it to continue driving at a reduced speed with a damaged tire.
It is possible to enhance the booking of the hull to the 6 class - the highest class of bulletproof reservation according to GOST R 50963-96, which provides protection against the B-32 7,62-mm rifle cartridge from the 5-10 m armor-piercing bullet. This is achieved by hanging additional units from ceramic armor: for them are provided for mounting on the body armor sheets.
The special features of the armored case include the combination of armor protection with a good overview for the driver (almost at the level of a regular car), the V-shaped lower part and the desire to comply with the requirements of ergonomics. For quick boarding-landing there are three relatively large doors, hinged on hinges. “Bullet catchers” or labyrinth-type seals are made in the door joints, and the joint protection is provided for in advance according to the 6 class. The doors and the hinged cover of the upper hatch are equipped with automatically activated locks holding them in the open position when the machine body is tilted. The need to provide sufficient space for the driver to work and to place (in accordance with the requirements of the customer) the filtering unit for protection against weapons of mass destruction forced the left (along the way) row of paratroopers' seats back and the right row forward. But as a result, the mutual displacement of the rows of seats allows paratroopers not to rest their knees on each other. Inhabited volume tried to free from protruding parts, creating a danger to the soldiers.
One of the most pressing problems of modern military vehicles is mine protection. In LSHA-B, to ensure it, a number of constructive measures have been taken: the already mentioned V-shaped bottom of the hull, the multi-layer structure of the bottom, fastening the crew seats and airborne troops to the sides of the machine using deformable parts that absorb part of the blast energy, seat belts on all seats, multipoint locks armored door. Undermining tests have shown that the vehicle can ensure the survival of the crew and the assault force when undermining a charge equivalent to TNT 600 g under the middle of the hull; up to 2 kg in TNT equivalent - under the rear wheel and up to 4 kg - under the front wheel.
LSHA-B can also adapt to accommodate various cargoes, injured on stretchers, installation of weapons and special equipment. The windows are equipped with roll-up curtains for blackout, external lighting devices are equipped with blackout devices.
The sides of the hull and the aft door are made with embrasures with folding armored valves designed for firing from an individual weapons, and small windows for assault troops. The upper round hatchway with a hinged back cover is not only used for emergency evacuation or a review of the terrain. Above it can be mounted armored turret, designed for installation, for example, 7,62-mm PKM machine gun, 12,7-mm machine gun Kord or 30-mm automatic grenade launcher AG-17. For convenience, the shooter serves as a retractable stand (when folded, it is removed under the seat so as not to interfere with the soldiers sitting in the case). A small ventilation hatch is also made in the roof of the hull.
The machine is presented with such items of equipment as a rear view video camera and air conditioning. Provision is made for an information management system and a satellite navigation system terminal.
An important indicator of a combat armored vehicle is its air transportability. The corresponding tests of the LSHA-B have not yet been carried out, but the appearance on its roof of four powerful hinges allows the vehicle to be carried on an external suspension of an amphibious transport helicopter (although this is not very characteristic of our Armed Forces).
In the spring of 2012, the LSHA and LSHA-B vehicles were transferred for acceptance tests on the basis of the Scientific and Research Testing Center for Automotive Vehicles of the 3 Central Scientific Research Institute MO with a view to entering the state tests in September.
Information