K4 - SLBM

The K-4 is a project of the Defence Research Development Organisation (DRDO) and it was kept secret for many years. The missile is approximately 12 metres (39 ft) long, has diameter of 1.3 metres (4 ft 3 in) and weighs 17 tonnes (19 tons). It can carry a warhead up to 2 tonnes (2.2 tons) and uses solid propellant. This missile could be best characterised as a hypersonic cruise missile as it remains within the earth’s atmosphere during its entire flight duration. To make it even more survivable, it follows a zig-zag path in three dimensions. Defence scientists involved in the missile's development stated that the aim of the missile was to achieve a high accuracy, with a close to zero Circular error probable (CEP)

Type: two-stage ship-to-surface missile

Designer : DRDO 

Deployed: India

Range:  3500 - 4000 km

Engine: Two stage, solid fueled rocket motors

Platform: Arihant class SSBN, Follow on SSBNs