Bomb Mortar 120mm HE

Bomb 120mm H.E. is a muzzle loaded fin stabilized mortar bomb fired from smooth bore 120mm mortar.It is provided with both lanyard and gravity type of firing.It can be towed over any terrain transferable by towing vehicle. Being a heavy mortar bomb, it increases the efficiency of the mortar regiment and provides adequate infantry back up.

The bomb body is made of steel(Spcn JSS 951 0-1). It has 5 grooves to achieve higher velocity and range.Agumenting cartridges that can be added on the tail give different ranges.It takes fuze percn.DA 4A or V19P or 162Mk.9.The fuze assembled with the bomb is direct action detonating type.the design adopted in the fuze prevents premature arming while transporting and handling.

Specifications.

CHARACTERISTICS

Total length of Ammunition                : 680.10 mm

MAx.dia                                   : 118.70 mm

Total Mass of Ammunition                  : 13.2 kg

Explosive filling in projectile           : 2.448 +/- 0.08 kg TNT

Explosive filling in primary cartrdges    : 78 gramsof propellant
                                              NGB 001
Explosive filling in augmenting cartrdges : 70 grams of propellant 
                                              NGB 241
Muzzle velocity                           : 118.87 m/s at charge 0
                                            : 331.01 m/s at charge 7
                                            : 6650 metres

Range                                     : 5 to 6 rpm(gravity)

Rate of firing                            : 3 to 6 rpm(lanyard).
                                            : 20 rds/min. Without 
                                              relaying

QUALITY

Strict quality checks are observed during various 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 assosiation with the Services Quality Assurance Organization.The bombs 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 tranportation.

RELIABILITY

Multiple mechanical arrangements have been provided in the Fuze to ensure total safety during handling and tranportation.

SHELF LIFE

The shelf life is 30 years

PACKING

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 study steel box which accommodates two paper containers with bombs along with agumenting cartridges.

STOWAGE DIMENSIONS

Package dimensions                    - 800 X 349 X 177 mm 

Gross weight(consisting of 4 bombs)   - 45.7 kg

Volume                                -0.049 Cu.Metres.

HAZARD CASSIFICATION

Compatibility group                 : "F"

Hazard division                     : 11

Fire fighting classification        : 1

UN NO.                              : 0.245