China's Sail-less Submarine Undergoes Outfitting at Jiangnan Shipyard
Recent satellite imagery has revealed that a 'sail-less' submarine, first spotted at the Jiangnan Changxingdao shipyard in May 2026, is now undergoing waterside outfitting. The vessel is positioned alongside a fitting-out quay, with scaffolding visible over parts of its hull. A floating boom has been deployed in a semi-circular pattern around the submarine, likely to secure the area during the outfitting process. This submarine, which lacks a conventional sail or fin structure, represents a significant departure from traditional submarine design. The absence of a sail, which typically houses masts, communications equipment, and periscopes, could enhance hydrodynamic efficiency and reduce noise. The submarine measures approximately 120 meters in length, making it larger than China's existing conventional submarines and comparable in size to nuclear-powered submarines.