The country’s top defence scientist has, for the first time, revealed that India’s new Shaurya missile, which can carry a one-tonne nuclear warhead over 750 kilometers, is specially designed to be fired from Indian submarines and could form the crucial third leg of India’s nuclear deterrent.
If launched from a submarine off the China coast, it could hit several Chinese cities like Beijing, Nanjing and Shanghai.Air and land-based nuclear weapons are delivered to their targets by fighter aircraft and ballistic missiles, respectively. Since these can be knocked out by an enemy first strike, the most reliable nuclear deterrent has traditionally been underwater, missiles hidden in a submarine.
V K Saraswat, the DRDO chief and Scientific Advisor to the Defence Minister, revealed to Business Standard at the ongoing Defexpo 2010, “We have designed the Shaurya so that it can be launched from under water as easily as from land. The gas-filled canister that houses the missile fits easily into a submarine. The underwater leg of the nuclear triad needs to be totally reliable and needs a state-of-the-art missile.”
“The Shaurya was developed from ground up as a submarine-capable missile,” confirms Dr Prahlada, the top DRDO scientist responsible for liaising with the military. “Every piece of technology for fitting it in a submarine is already in place.”
A ballistic missile is like a stone being lobbed towards a target. Rockets toss it upwards and towards the target; after the rocket burns out, gravity pulls the missile warhead down towards the target. Buffeted by wind and re-entry forces, accuracy is a problem; and, since the ballistic missile’s path is predictable, shooting it down is relatively easy.
The Shaurya has none of these issues. Its solid-fuel, two-stage rocket accelerates the missile to six times the speed of sound before it reaches an altitude of 40 kilometers (125,000 feet), after which it levels out and cruises towards the target, powered by its onboard fuel.
While ballistic missiles cannot correct their course midway, the Shaurya is an intelligent missile. Onboard navigation computers kick in near the target, guiding the missile to the target and eliminating errors that inevitably creep in during its turbulent journey.
The Shaurya, say DRDO sources, will strike within 20-30 metres of its target after travelling 750 kilometres.
Shaurya surfaces as India’s underwater nuclear missile | idrw.org