China’s Mysterious Submarine-Ship Hybrid Breaks Cover
4th December 2025
The Chinese trimaran craft is seen in what is the first widely circulated image of the vessel, but it leaves many questions unanswered. Not least, what is the actual purpose of this vessel? At the same time, details point to this craft being fully or nearly fully submersible, making it something of a hybrid design.
The photo, which began to circulate recently on social media and is republished at the top of this story, provides a profile view of the vessel in the water. While the date of the photo is unknown, the location is likely the Huangpu shipyard in Guangzhou province, where the vessel has reportedly been noted in satellite imagery over the last few months. Our previous understanding of the vessel’s appearance comes apparently exclusively from naval analyst H. I. Sutton, who looked at that imagery, in which the vessel was still covered with tarpaulins.
As had been apparent in the satellite imagery, the black-painted vessel incorporates features of both surface ships and submarines. The vessel’s slender shape had also previously been noted, pointing toward high efficiency. However, seen from this angle, the roughly 210-foot-long vessel doesn’t appear to have been necessarily tailored for high performance, at least not as an overarching priority.