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This ammunition is fired from Gun 84 mm RCL Carl Gustaf M2 from the shoulder. The cartridge combines some of the characteristics of Rocket and Artillery ammunition in its design. The ammunition is of fixed type and is spin established. This ammunition is intended for use against troops in the open and in slit trenches, machine gun posts soft skinned transport vehicles and similar types of targets. It is fitted with a combined mechanical time and impact fuze.
The design of the ammunition parts and functioning are like Artillery components excepting that the rear of the cartridge case is closed by a plastic blow out disc (base plate) which allows rearward escape of the propellant gas to make it recoilless and the ignition of the propellant is by a side-located percussion cap and an igniter composition.
The cartridge case is made of light aluminium alloy drawn to specification BS 1470 grade 6082 TF or IS 736 grade 64430 WP. At the rear, it is formed with a flange which is cut away over a length to take a guide while loading the round in the gun. At about 90 degree from the cut away flange a hole with two diameters is provided on the body of the cartridge case to take the percussion cap. The shell body is made of steel to specification DIN 17200 Code 25 Cr Mo 4 with carbon percentage 0.26 to 0.29. It encloses two inserts of neoprene rubber containing about 850 steel balls, the inserts surrounding the HE charge RDX/TNT. While filling the HE (RDX/TNT) a central cavity in two diameters is made to take two booster pellets and the time and impact fuze FFV447. The shell body takes the driving band of copper. The shell body is so designed that the danger area for rearward fragments from the point of burst is small. Propellant is NGB204 which is a ballistite propellant. The fuze FFV 447 is dual-purpose fuze of both impact and mechanical time types. This ammunition is of Swedish design and is manufactured to Government of India, Ministry of Defence Specification Number CQA0312 and Drawing No.F1301-115201C.
PHYSICAL CHARACTERISTICS :
| Total length of ammunition | 380 mm |
| Total mass of ammunition | 3.1 kgs |
| Mass of projectile | 2.3 kgs |
| Propellant (ACM) | 0.4 kg |
| Explosive filling in primer (cap) | 0.13 gms (Composition VH 2 & Zirconium) |
| Explosive filling in Igniter | 15.0 gms (Composition Z47B & NC 110) |
| Explosive filling in Projectile | 0.40 kg |
| Explosive filling in Fuze | 3.08 gms |
| Net explosive content | 803.36 gms. |
PERFORMANCE CHARACTERISTICS :
| Muzzle velocity | 240 m/s |
| Practical firing range upto | 1000 m |
| Time of flight to 700 m | 3.4 sec |
The weapon is of recoilless type and can be fired from the shoulder. It is assembled with a dual purpose fuze. On bursting of the projectile, the steel balls 850 (Nos) act as splinters.
The fuze does not get armed unless it is spun at 3500 rpm and thus the ammunition is safe during all stages of operation, storage and transport.
Due to its sound design and careful manufacture, the ammunition is very reliable for use in combat field environment.
The shelf life of the ammunition is 10 years
Two rounds are packed in twin containers made up of injection moulded tube of high density polyethylene. Three such twin containers (total 6 rounds) are packed in one wooden crate.
STOWAGE DIMENSION :
| Packing box size | 660 mm x 463 mm x 356 mm |
| Gross weight | 40.0 kgs |
| Net weight | 24.6 kgs |
| Volume | 0.108 cu.m |
HAZARD CLASSIFICATION :
| Compatibility group | F |
| Hazard division | 1.2 |
| Fire fighting class | 2 |
Ordnance Factory Board
Ayudh Bhawan
Government of India
Ministry of Defence
10A S. K. Bose Road. Kolkata - 700 001, India.
Tel: 0091-33-248 9027 / 248 2103 / 248 5077-80
Fax : 0091-33-248 1748/210 8235
Mail : ofbtrade@dataone.in
http://www.ofbindia.com