Submarine Hai Kun Conducts Underwater Test in Rain; Expert Says Frequent Testing Signals Imminent Delivery
Taiwan's indigenous submarine prototype, Hai Kun, conducted its 10th submerged test in Kaohsiung on June 4, 2025, in the rain. Military expert Chi Dong-yun stated that the frequent testing indicates the submarine's stability and crew proficiency are improving, bringing delivery closer. Defense Minister Wellington Koo said no delivery timeline will be set to prioritize safety.
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- 📰 Published: June 4, 2026 at 11:32
- 🔍 Collected: June 4, 2026 at 11:41 (9 min after Published)
- 🤖 AI Analyzed: June 6, 2026 at 16:16 (52h 34m after Collected)
(Central News Agency reporter Lin Chiao-lien, Kaohsiung, June 4) The indigenous submarine prototype Hai Kun conducted a submerged test in the rain today. Despite the rain, military enthusiasts gathered at the harbor, cheering for the submarine. Military experts stated that the frequent testing of the Hai Kun indicates increasing stability, "which also shows that the delivery date is getting closer."
The Hai Kun departed the harbor for sea trials at around 8 a.m. today. This is the 10th submerged test for the Hai Kun. It was raining intermittently in Kaohsiung this morning. The Hai Kun's departure in the rain further energized military enthusiasts, with dozens of people waving flags and shouting, "Go, national army! Go, Hai Kun!"
Military expert Chi Dong-yun, speaking to the media at the harbor, said that the Hai Kun departed the port very quickly, including the pre-departure preparations. This indicates that after two days of maintenance, the Hai Kun is in good condition, and the crew's proficiency is quite stable. CSBC Corporation must expedite subsequent sea trial subjects.
Chi said that the Hai Kun will continue to conduct more comprehensive test subjects, advancing to deeper waters and testing at greater depths. Although outsiders cannot know the specific test subjects, it is expected that the delivery schedule is getting closer. This is the 16th sea trial and the 10th submerged test for the Hai Kun. Basically, submerged tests will be conducted many more times than surface tests, which is normal for submarine testing.
Regarding when the Hai Kun will conduct an overnight test, Chi stated that it likely won't stay out overnight today, as it may conduct tests again tomorrow. "The more frequent the tests, the fewer preparations and adjustments are needed," he said, adding that the increased testing frequency is a positive sign.
Furthermore, Chi believes that Defense Minister Wellington Koo's statement that "no delivery timeline will be set" will effectively reduce the invisible pressure on the shipyard and personnel, allowing them to do the job well with safety as the priority, which he believes the public can accept. (Editor: Huang Ming-hsi) 1150604
The Hai Kun departed the harbor for sea trials at around 8 a.m. today. This is the 10th submerged test for the Hai Kun. It was raining intermittently in Kaohsiung this morning. The Hai Kun's departure in the rain further energized military enthusiasts, with dozens of people waving flags and shouting, "Go, national army! Go, Hai Kun!"
Military expert Chi Dong-yun, speaking to the media at the harbor, said that the Hai Kun departed the port very quickly, including the pre-departure preparations. This indicates that after two days of maintenance, the Hai Kun is in good condition, and the crew's proficiency is quite stable. CSBC Corporation must expedite subsequent sea trial subjects.
Chi said that the Hai Kun will continue to conduct more comprehensive test subjects, advancing to deeper waters and testing at greater depths. Although outsiders cannot know the specific test subjects, it is expected that the delivery schedule is getting closer. This is the 16th sea trial and the 10th submerged test for the Hai Kun. Basically, submerged tests will be conducted many more times than surface tests, which is normal for submarine testing.
Regarding when the Hai Kun will conduct an overnight test, Chi stated that it likely won't stay out overnight today, as it may conduct tests again tomorrow. "The more frequent the tests, the fewer preparations and adjustments are needed," he said, adding that the increased testing frequency is a positive sign.
Furthermore, Chi believes that Defense Minister Wellington Koo's statement that "no delivery timeline will be set" will effectively reduce the invisible pressure on the shipyard and personnel, allowing them to do the job well with safety as the priority, which he believes the public can accept. (Editor: Huang Ming-hsi) 1150604