Recent satellite imagery has revealed the construction of a new class of diesel-electric submarine at Wuchang Shipyard in Wuhan, China, identified by former U.S. Navy submariner Tom Shugart. This submarine measures approximately 272 to 279 feet in length, making it larger than the existing Yuan-class submarines, which are around 253 feet long. Notably, the new vessel features an X-shaped stern, a design element not previously seen in Chinese submarines, which enhances maneuverability and reduces noise, thus improving stealth capabilities. The Chinese Navy continues to expand its fleet, having launched over 36 new submarines in the past 20 years, primarily to bolster its underwater warfare capabilities against the U.S. Navy. The emergence of this new class indicates a significant advancement in China's submarine technology, which includes both nuclear and conventionally powered vessels. The ongoing developments showcase China's commitment to enhancing its military presence, particularly in the South China Sea.