By National Interest
Here’s What You Need to Remember: Thanks to nuclear propulsion, Arihant can do twelve to fifteen knots on the surface and twenty-four knots underwater. Maximum diving depth is unknown, and probably a closely held secret, but the Akula class is known to dive to six hundred meters. The submarine is manned by a crew of ninety-five to one hundred.
A new submarine promises to give the world’s most populous democratic nation a powerful second-strike nuclear capability. The INS Arihant, India’s first nuclear ballistic-missile submarine, will finally give the country nuclear weapons that could survive a surprise first strike and go on to deal a crushing retaliatory blow to the enemy. The new sub will complete India’s triad of air, land and sea nuclear forces.
India tested its first weapon, an eight-kiloton device nicknamed Smiling Buddha, in 1974. Although small in yield, the device was a remarkable technological achievement that thrust the young country into the exclusive, so-called “nuclear club” that had until then consisted of the United States, Soviet Union, United Kingdom, France and China.
India is believed to have 520 kilograms of plutonium—enough for, according to the Arms Control Association, “100 to 130 warheads.” New Delhi describes this a “credible minimum deterrent” against neighboring nuclear powers China and Pakistan. India has a firm No First Use policy with regard to nuclear weapons, vowing to never be the first to use them in any conflict and only use them to retaliate in kind.
Nuclear-armed submarines are an ideal basing solution for a country such as India. While less accurate than land-based missiles and less flexible than air-launched weapons, ballistic-missile submarines are the most difficult to destroy in a first strike.