China’s New Submarine Highlights Rapid Undersea Expansion

China is expanding its underwater capabilities at an unprecedented pace. The country has recently launched an innovative submarine that stands out due to its unique ‘sailless’ design. This new development signifies a critical advancement in China’s submarine technology and strategy.
Rapid Undersea Expansion
Over the past five years, China has launched between 15 to 20 submarines, including at least eight different classes. While Western navies struggle to build more than one or two submarines at a time, China continues its rapid expansion of undersea fleets.
Latest Submarine Developments
The latest submarine was sighted in Shanghai, specifically moored near a fitting-out basin at the JN Shipyard. On May 31st and June 1st, satellite images confirmed its presence, indicating a launch that has not been disclosed to the public.
- Length: Approximately 120 meters (394 feet)
- Width: 10-11 meters (33-36 feet)
- Design: Notable for a streamlined bow, X-form rudders, and minimal sail
The JN Shipyard, primarily known for surface combatants, has historically not constructed nuclear-powered submarines. However, this facility previously experimented with sailless designs, suggesting a focus on reducing drag for enhanced performance.
Potential Second Submarine Launch
Simultaneously, another vessel may have been launched at the Huludao shipyard. This facility specializes in nuclear submarines and, if confirmed, indicates significant progress in China’s submarine production capabilities. The submarine from Huludao is speculated to be of the same class as the one observed in Shanghai.
Unanswered Questions
While the new subclass remains largely a mystery, there are important considerations regarding its propulsion and operational role. Given its size, standard nuclear propulsion is most likely; however, if it is conventionally powered, it would currently be the largest conventional submarine in operation globally.
- Potential Propulsion Types:
- Standard nuclear power
- Conventional power, possibly the largest in the world
- Nuclear Air-Independent Power (AIP) technology
China’s significant developments in submarine technology highlight its focused effort to enhance naval capabilities. Observers and analysts will need to scrutinize emerging data to decipher the true nature and intentions behind this rapid undersea expansion.



