Taiwan’s first indigenous defense submarine prototype, the Hai Kun (海鯤, SS-711), is undergoing a harbor acceptance test, a navy official said yesterday.

Admiral Huang Shu-kuang (黃曙光), who heads the Indigenous Defense Submarine program, said that personnel are training on the Hai Kun’s systems and equipment, and the next step would be a sea acceptance test (SAT) in the second quarter of next year.

The submarine was initially launched on Sept. 28, after seven years in development, he said, adding that the program has been supervised and audited by the Legislative Yuan, the Control Yuan and other government agencies, and no problems have been found.