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आयुध निर्माणी बोर्ड
Ordnance Factory Board
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BOMB 120 MM MORTAR HE

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BOMB 120 MM MORTAR HE


PHYSICAL CHARACTERISTICS :
Total length of Ammunition 680.10 mm
Maximum dia 118.70 mm
Total mass of Ammunition 13.2 kgs
Explosive filling in projectile 2.448 ± 0.08 kg T.N.T
Explosive filling in primary Cartridges 75 g of propellant NGB 011
Explosives filling in augmenting Cartridges 78g of propellant NGB 241
 
PERFORMANCE CHARACTERISTICS :
Muzzle velocity 118.87 m/s at charge 0
331.01 m/s at charge 7
Range 6490 Metres
Rate of firing 5 to 6 rpm (gravity)
3 to 6 rpm (Lanyard)
 
SPECIAL FEATURES :
The fuze assembled with the bomb is direct action detonating type. The design adopted in the fuze prevents premature arming while transporting and handling.
QUALITY :
Strict quality checks are observed during stages of production. The components are proved / inspected separately before being released for filling and assembly. Added to this, functional proof is carried out in association with the Services Quality Assurance Organization . The bombs are filled and assembled in lots of 1000 Nos.
SAFETY :
Multiple mechanical arrangements have been provided in the fuze to ensure total safety during handling and transportation.
RELIABILITY :
The mortar has high angle of fire and is capable of high degree of accuracy. Due to the simple design of the direct action percussion fuze, the bomb is capable of functioning in all conditions.
SHELF LIFE :
The shelf life is 30 years
PACKING :
The packing consists of inner and outer packages. The inner package is a container made of strong laminated paper which holds one bomb. The outer package is a sturdy steel box B7A which accommodates two paper containers with bombs along with augmenting cartridges.
STOWAGE DIMENSION :
Packages Dimensions 800 mm x 349 mm x 177mm
Gross weight 45 kgs
Volume 0.049 Cu. m
HAZARD CLASSIFICATION :
Compatibility group F
Hazard Division 1.1
Fire fighting classification 1