Authored by Aamir Khollam via Interesting Engineering,China has quietly launched another advanced submarine, signaling the rapid expansion of a naval force that already outpaces Western production rates.ROKS Dosan Ahn Changho class submarine and satellite imagery of China's sailless submarine. Wikimedia Commons and @Mack8miltech on XFresh satellite imagery shows a large new submarine at Shanghai's Jiangnan Shipyard. The vessel features an unusual "sailless" profile and a highly streamlined hull. Analysts say the design could reflect China's push toward faster, quieter, and harder-to-detect underwater platforms.The launch comes as the U.S. and its allies struggle to increase submarine output. China, meanwhile, has launched roughly...