THE ‘ARSENAL SHIP’ is a 20-year old idea proposed by the US Navy. At base, they are a mobile floating platform for launching large numbers of missiles at sea, large being in the hundreds. A putative price tag of $450 million caused the US Congress to knock the idea on the head in 1998 when it scrapped funding.
Popular Science magazine is now saying that the PLA-Navy has taken up the idea, and with a twist. Its ideas for arsenal ships would let them slip beneath the waves better to evade detection.
It sounds like the stuff of science fiction, but plans have been seen of a couple of concepts for large scale warship-cum-submarines with flat hulls and steering fins that would let them at least semi-submerge as well as hydroplane when on the surface. One illustrative example is seen above. Wuhan City has been claiming some props for the research being done locally.
An arsenal ship would naturally fall into a carrier battle group, relying on the aircraft carrier’s fighters to protect it from air threats while providing the battle group with hundreds of extra missile launchers.
The magazine says:
Chinese research institutes have been testing sub-models of both arsenal ship configurations since 2011, including open-water tests for the hydroplane arsenal ship and laboratory tests for the arsenal submarine. Unverified rumours on the Chinese internet claim that a full-scale, proof-of-concept is under construction at Bohai Shipbuilding Heavy Industrial Corporation, to be launched after 2020.
There would be considerable technical challenges to overcome with an arsenal ship, especially one of the size China envisages. Not least, will be making it strong enough to contend with the stresses it would encounter underwater. Semi-submersible warships that have been built to date are small, torpedo-boat sized.
It would also need to be able to travel fast enough to keep up with a carrier group, which would make the hydroplane option the more likely.