Catridge QF 40mm L-70 HE/T

The Bofors 40mm Automatic Gun L-70 on Field Mounting is a close range anti-aircraft weapon, mounted in a single-barrel mounting on a 4 wheel trailer carriage. It is intended for engaging high speed air-craft flying at low altitude, its chief characteristics being high speeds of elevation and traverse combined with a hihg rate of fire. The gun is normally fired electrically from remote control. It can also be fired electrically from the gun position by means of Bofors local power control. In case power supply fails, the gun can be operated purely mechnically from the mounting.

The gun is a development of the original 40 mm Bofors gun, the term L-70 referring to the length of the barrel in calibres. Although it is a rapid fire automatic weapon, it can be set for a single shot, it is fed by an automatic mechanism into which 4-round clips are loaded by hand. This ammunition is manufactured to governmnet of India, Ministry of Defence drawing No.IRW 115 GF and Bofors specification number D 200-H(c)

SPECIFICATIONS

PHYSICAL CHARACTERISTICS

Total length of ammunition		: 534.5mm(max)

Total max of ammunition			: 2.4 kg

Mass of projectile			: 0.96kg

Propellant(ACM)				: 0.43 kg

Weight of bursting charge(TNT)		: 0.115 kg

Net explosive content			: 627.75 kg

PERFORMANCE CHARACTERISTICS

Muzzle velocity				: 1000 m/s

Time for self destruction		: 8 sec

Rate of fire				: 4 rounds/sec

Maximum horizontal range		: 12600 m

SAFETY

The Fuze FZ 104 assembled into the shells has the following safety arrangements:

• The striker is held in its position by a supportinng cross pin and inner sleeve till it gets an impact.

• The sleeve provides safety against functioning by rain drops.

• The stirrup spring of the firing pin locks the roto in the unarmed position during storage and transport.

• After firing, the delayed arming pellet prevents the firing pin from being pushed up by its spring to release the rotor, until it is consumed. This ensures a delay in arming at least 60m from the muzzle of the gun.

RELIABILITY

Due to its sound design and careful manufacture, the ammunition is very reliable for use in combat field environment

SHELF LIFE

PACKING

Each round is packed in water proof laminated paper containers, the body & lid of which is closed with two turns of water proof tape adhesive. 12 such containered rounds are packed in one steel box.

STOWAGE DIMENSIONS

Size of the box				: 624 x 250 x 319 mm

Gross weight				: 48.0 kg

Net weight				: 30.8 kg

Volume					: 0.048 cu.m

HAZRD CLASSIFICATION

Compatibility		                : 'F'

Hazard division		                : 11

Fire fighting		                : 1

U.N.No.			                : 0005