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The 155-mm HE-ER (High-Explosive Extended-Range) base-bleed projectile is operated primarily for blast and fragmentation against infantry troops and soft materiel targets.
This projectile can be fired from 39, 45, 52 -calibre 155-mm artillery guns using all types of propelling charges. The increased range is achieved by using a low-drag aerodynamic shape coupled with base bleed technology.
The projectile contains 12 kilograms of TNT in a thin-walled, high-strength, high-fragmentation steel- alloy body.
It has a deep-cavity fuze design that accepts Point-Detonating (PD) or proximity (VT) fuzes.
FUNCTIONING
An aluminium liner in the deep fuze cavity contains a supplementary TNT charge. When proximity fuze is fitted, the supplementary charge is removed.
When a PD fuze is used, it detonates the supplementary charge upon impact, which in turn detonates the projectile filler. When a proximity fuze is used, detonation occurs when the projectile approaches the target (proximity action). The proximity fuze contains its own booster element to detonate the projectile filler.
CHARACTERISTICS
| Length (without fuze) | 857 millimetres |
| Weight (without fuze) | 43 kilograms |
| HE TNT filler weight | 12 kilograms |
| Fuze type | PD or VT |
| Hazard class | 1.1D |
| UN number | 0168 |
PERFORMANCE
| Accuracy | %PE < 0.30 |
| Maximum range from 39-cal. Barrel | 30,000 m |
| Maximum range from 45-cal. Barrel | 34,500 m |
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