20. CNS Linyi
The CNS Linyi belongs to the Chinese Liberation Army. It’s big enough to house two helicopters, and features anti-submarine missiles and a missile jamming system. It is 512 feet long and moves about 30 knots (34 mph). This isn’t the only ship of its kind China’s working on. Two other ships were found under construction at Changxingdao-Jiangnan Shipyard five years ago in 2012.