- a non-contact fuse;
- steering wheel;
- gyro device;
- power supply unit;
- combat unit;
- radio control equipment;
- step separation device;
Anti-aircraft guided missile 9M311 is designed to engage in the visual visibility of aircraft and helicopters flying at altitudes of 15 to 3000 m at speeds up to 500 m / sec. The 9M311 missile consists of the following main parts: a container and the missile itself. Rocket 9M311 is a two-stage guided missile, made by the aerodynamic scheme "duck". The appearance of the missile in the container and the missile itself - see diagram.
The 9M311 missile with the weight of 42 kg (transport and launch container with the rocket - 57 kg) was built according to the bicaliber scheme with a detachable engine. The rocket has a single-mode propulsion system consisting of a lightweight launch engine with a plastic casing 152 mm in diameter. This engine provided the rocket with a muzzle velocity and was separated after about 2.6 seconds after launch. To avoid smoke from the running engine to the process of optical vision of the rocket at the launch site, a program (via radio commands) of arc-shaped trajectory of the LSD output was applied.
The missile control system is a semi-automatic radio command with an optical communication line.
Rockets 9M311 are literal devices, so, before installing missiles in the directional sounding system, it is necessary to make sure that the literal of the missile corresponds to the letter of the target tracking station sounding system 2C6.
Missiles 9M311 is delivered in the capping, finally assembled and equipped with the tuned on-board equipment.
After the missile was brought to the target line of sighting, its marching stage (weight - 18.5 kg, diameter - 76 mm) continued to fly on inertia. Average speed made 600 m/s, and the average located overload - 18 units that allows to provide defeat on counter and catch-up courses of the purposes flying with speed to 500 m/s and maneuvering with an overload 5 ... 7 units. Absence of the marching engine excludes smoking of a line of sighting of the purpose that provides reliable and exact guidance of SAM, reduces weight and dimensions of the rocket, simplifies a layout of onboard equipment and fighting equipment. The application of the two-stage rocket circuit with the ratio of diameters of the launch and marching stages 2:1 allowed to practically halve the weight of the rocket in comparison with the single-stage LSD with the same flight and technical characteristics, as the engine separation significantly reduced the aerodynamic resistance of the rocket in the main trajectory section.
The missile's combat equipment consists of: a core combat unit, a non-contact target sensor and a contact fuse. Occupying almost the entire length of the march stage combat unit weighing 9 kg is made in the form of a large elongation compartment with rods hitting elements. The length of the rods is about 600 mm, diameter - 4 - 9 mm, diameter of the rod ring - about 5 m. On top of the rods is laid a layer of ready-made attack elements in the form of cubes weighing 2 -3 g. The combat unit provided cutting action on the elements of the target glider design and incendiary action - on the elements of its fuel systems. At small misses (up to 1.5 m) the blast effect was also ensured. The combat unit was detonated at a distance of up to 5 m from the target by a non-contact sensor signal, and in case of a direct hit (which probability was about 60%) by a contact fuse.
The 0.8 kg non-contact sensor consisted of 4 semiconductor lasers forming an eight-beam directional pattern perpendicular to the missile's longitudinal axis. The laser signal reflected from the target was received by photo receivers. The range of confident response was 5 m and reliable malfunctioning was 15 m. The non-contact sensor was platooned by radio commands 1 km before the ZUR met the target, and when the missile fired at ground targets it was shut down before launch. There were no height restrictions on the SAM control system.
Onboard equipment of ZUR included antenna-waveguide system, electronic unit, gyroscopic coordinator, steering unit, tracer, power supply unit. The missile used passive aerodynamic damping of the SAM airframe in flight, which was provided by correction of the control loop when commands were transferred to the missile from the combat vehicle computer system. This made it possible to obtain sufficient guidance accuracy and to reduce the weight and dimensions of the airborne equipment and the SAM system as a whole.
The container is designed for storing, transporting and launching the missile. It is a pipe made of glass fabric, on which a connector for electrical connection of the missile with the 2C6 SSD is installed. The missile itself consists of an instrument compartment, equipment compartment, propulsion system and combat unit.
The missile in the capping from the central arsenals (bases) to anti-aircraft units are transported by rail, air, sea, river - without speed and distance limits, to the SSD up to 3000 km, road at a distance of 10,000 km, of which:
- 6000 km on the highway with speeds up to 60 km/h;
- 3000 km on dirt roads with travel speeds up to 40 km/h;
- 1000 km off-road at speeds of up to 15 km/h.
The list of works at the central arsenals (bases) is as follows:
- Unloading of rockets in packages from vehicles (truck cranes, forklift trucks, electric forklift trucks) and their delivery to the storage place;
- entrance control:
- inspection of the accompanying documentation;
- external inspection of packaging and missiles;
- storage (heated and unheated storages, field conditions) of missiles in packages;
- loading of the packaged missiles on vehicles to be sent to subordinate warehouses and anti-aircraft units;
- loading malfunctioning missiles in packs manually, as well as empty containers and packs for dispatch.
The list of works in the anti-aircraft units is as follows:
- manual unloading of rockets from vehicles;
- removal of missiles from the package;
- external inspection;
- dispatching faulty missiles, empty containers and packaging;
- operation of missiles as part of the SSDS.
It is allowed to restore paintwork and markings of missiles in the troops.