SPG-9 "Spear" – machine-caliber bazooka 73 mm, shooting with a tripod. It developed in the Soviet Union. AT 1962 successfully completed Polygon-service testing. AT 1963 he was adopted by the Soviet Army. Apart from Russia, available in China, Iran, Pakistan, Egypt.
SPG-9 Spear – video
SPG-9 "Spear" shoots stabilized feathered projectiles, having a cumulative or explosive warhead, similar to those, that are used in the 73 mm gun low pressure 2A28 Thunder, which is installed in BMP-1
The projectile is launched from a cannon small charge, which gives it an initial velocity from 250 to 400 meters per second. When fired gases, generated from the combustion of gunpowder charge, throw a grenade out of the barrel, and a portion of powder gases through the nozzle is retracted. This creates a reactive force, and which balances the force of the impact. When the projectile is approximately 20 meters from the launcher, included rocket motor. PG-9 rocket engine accelerates to a velocity for the projectile 700 meters per second, before combusted fuel.
Option for use in airborne troops called LNG-9D and a tripod with wheels for manual handling.
SPG-9 "Spear" is composed of a shutter stem, Tripod (machine with wheels for landing options), an electrical mechanism to a shot, as well as sight. The barrel has a handle for rolling weapons, fuse, protecting the gunner from the burn (from the heated barrel, extraction cartridge after firing mechanism, electric trigger. To barrel shaped shutter mounted nozzle with locking mechanism and unlocking the barrel.
Tripod stand is adjustable feet position,whereby the height of the line of fire can vary from 390 to 700 mm.
Direct fire using an optical sight PGO-9 with a fourfold increase. To start the shell uses an electric mechanism, generator which, together with a trigger and a fuse located in the frame. The structure of this mechanism includes the contact and locking device, which does not allow the shot in the case of not completely closed shutter.
PG-9V shot consists of cumulative grenades and starting powder charge. PG-9 has a caliber warhead fuze with piezoelectric golovodonnym, Jet engine with two six-bladed stabilizer and tracers. The starting charge consists of a metal charger (perforated tube with an aperture), nitroglycerin powder sample in perkalevom cap, igniting the charge of the PSA assembly with electric spark and boost. PG-shot 9B is a convenient quick connection node powder charge with a grenade. Grenade receives departure initial velocity until 435 m / s, jet engine accelerates to its maximum speed 700 m / s. High speed reduces flight time grenades, thereby reducing the amount of correction for crosswind and fire at short range without introducing amendments (straight shot).
In the seventies, the PG-7V shot has been upgraded. new shot, called PG-7VS, I received a lot of armor - 400 mm. Later, to enhance firepower infantry units in combat manpower of the enemy has been designed with a fragmentation grenade shot - 0r-9B. A new shot is only a starting powder charge, without the jet engine. To ensure the new firing a grenade launcher has been redesigned and.
Loading the grenade launcher is made with the breech when the shutter is open. After closing the shutter closes the electric circuit and the grenade launcher ready for firing. To make a shot, cock the trigger by turning its handle down. Then, pressing the trigger, driven alternator inductor. Electricity, generated by the generator, is supplied to the contact device and then to the starting powder charge elektrozapaly, igniter that ignites the powder charge and start.
The gases act on the grenade, wherein it is detached from the shank, pomegranate and starts to move the barrel grenade launcher; portion of the inclined gas breaks through tangential openings in the outer part of the nozzle and imparts rotational movement garnet. With further increase in gas pressure destroyed (are pressed) forcing wheels assembly and begins to escape through gas release nozzle grenade. After the departure of the grenade out of the barrel under the action of the oncoming air flow and centrifugal forces disclosed stabilizer blades, 15-20m and at a distance from the muzzle after firing pirozamedlitelya starts burning propellant jet engine, the flight speed of grenades increases to the maximum. After the shot you need to open the shutter, thus from the breech aperture extends from the tube, on which the powder charge.
SPG-9 Calculation consists of four: commander, gunner, charging and porters. This calculation is capable of transferring an exploded grenade (pohodnom) position over long distances, as well as move the SPG-9 in the firing position when changing firing positions.
The grenade launcher was modernized and is available in several versions:
- landing grenade launcher SPG-9D (GRAU index - 6G7);
- modernized launcher SPG-9M (GRAU index - 6G13);
- modernized landing grenade LNG 9DM (GRAU index - 6G14);
- modification with night sight PGN-9 (GRAU index - 1PN52) - SPG-9N, SPG-9DN, LNG and CNG-9MN 9DMN.
In the BMP-1 / 1P, and on established BMD-1 smoothbore gun 2A28 Grom “Thunder” which represents a LNG-9, modified for installation in military vehicles.
The following ammunition designed for grenade:
- PG-9V shot (GRAU index - 7P3) antitank grenade PG-9,
- OG-9V shot (GRAU index - 7P4) a fragmentation grenade OG-9,
- OG-9VM shot (GRAU index - 7P4M) a fragmentation grenade OG-9M,
- OG-9VM1 shot (GRAU index - 7P4M1) a fragmentation grenade OG-9M1,
- PG-9VS shot (GRAU index - 7P14) antitank grenade PG-9C,
- PG-9VS1 shot (GRAU index - 7P20) antitank grenade PG-9S1.
Performance characteristics of the LNG-9 Spear
Adopted: 1962
Constructor: AT. AND. the Silicon, A. T. Alekseev
SPG-9 Caliber
– 73 mm
SPG-9 Weight
– 47,6 kg
SPG-9 Dimensions
– Length, mm: 2110
– barrel length, mm: 670
– Width, mm: 1055 (in firing position)
– Height, mm: 820
SPG-9 rate
– 6 rounds / min
Speed SPG-9 projectile
– 435 m / s at the beginning of, to 700 m / s after the dissolution (PG-9); 316 (OG-9)
Sighting range SPG-9
– 800 m
Maximum range, m: 1300, separate fire fragmentation grenade - 4500
Calculation, people: 4
carriage: Tripod
elevation: +7° PG-9V, +25OG-9V ° / 3 °
Angle of rotation: +-15°
type boepitaniya: manual loading
Aim: Optical-CHR 9 with 4.2-fold increase; night PHN-9 infrared
Photo SPG-9 Spear
Night sight PHN-9
Protivotankovaâ grenade PG-9
