A missile launch pad on the seabed? Chinese simulation suggests it’s possible

Testing conducted by Chinese scientists has found that a solid rocket engine can ignite at 200 metres (656 feet) underwater – far deeper than submarine-launched missiles – suggesting new possibilities for deep-sea weapon systems.Ballistic missiles that can be launched from subs are central to strategic deterrence for nuclear powers – for example, the M51 used by France, America’s Trident system, and China’s Julang series.With these missiles on board, submarines, moving stealthily through deep oceans, can launch strikes from almost anywhere.But it is technically difficult. Each step presents challenges – from underwater ignition to the controlled exit and a stable ascent – and these missiles are typically launched from a depth of around 30 metres.China’s JL-3 intercontinental-range submarine-launched ballistic missiles. Photo: XinhuaA team of scientists in central China have been pursuing ways to achieve the military goal of firing these weapons from greater depths of “hundreds of metres, or even deeper”.