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Bomb 51 mm H.E. is fired from 51mm Mortar, having a smooth bore. This bomb is used as an antipersonnel bomb for hitting targets which are beyond the immediate firing range. The bomb body is made out of steel (specification BS 1449 or BS 970)
| Total length of Ammunition | 282.96 mm |
| Total mass of Ammunition | 850 g |
| Explosive filling in projectile | 109 g of RDX/WAX pellet 88:12 |
| Muzzle velocity |
79.5 m/s at charge 1 101.0 m/s at charge 2 |
| Maximum Range |
850 Metres |
Rate of fire |
8 Rds/min (Normal) 12 Rds/min (Intense) |
The body made of mild steel is easily fragmented. A notched coil is fitted around its internal diameter to obtained proper size fragments. The fuze used is a direct action detonating type. The design adopted in the fuze prevents premature arming while transporting and handling.
Strict quality measures are adopted during all stages of manufacture of components, filling assembly and packing. Each component used is proved/ inspected separately before being released for filling/assembly. In addition, functioning, /dynamic proof is carried out in association with Service Quality Assurance Agency. The Bomb is filled and assembled in lots of 1000 Nos.
Multiple Mechanical Safety devices have been provided in the Fuze to ensure total safety in handling and transportation.
The bombs are capable of functioning in subzero as well as at high temperature effectively.
The shelf life is 30 years
The packing consists of a HDPE container which holds one bomb and six containers are packed in a canvas bag and four such bags are packed in a steel box.
| Package Dimensions | 360 mm x 682 mm x 257 mm |
| Volume | 0.0631 Cu m |
| Compatibility group | F |
| Hazard division | 1.2 |
| Fire fighting classification | 2 |
Ordnance Factory Board
Ayudh Bhawan
Government of India
Ministry of Defence
10A, S. K. Bose Road, Kolkata – 700 001, India.
Tel: 0091-33-2248 9027 / 2248 2103 / 2248 5077-80
Fax : 0091-33-2248 1748/2210 8235
Mail : ofbtrade@dataone.in
http://www.ofb.gov.in