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Taiwan’s Indigenous Defense Submarine Hai Kun (SS-711) Conducts First Submerged Trial
['Tso-Juei Hsu', 'Hsu Tso-Juei Is A Freelance Writer Based In Taipei', 'Taiwan. He Has Been Writing Articles About Japanese Defense Policy For Taiwanese Military Magazines For Years. He Has A B.A. In Japanese Language', 'A Master S Degree In Strategic Studies. He Is Also Working As A Translator At A Japanese Company In Taipei.']
Naval News
Taiwan’s Indigenous Defense Submarine Hai Kun (SS-711) Conducts First Submerged TrialTaiwan’s first Indigenous Defence Submarine (IDS), Hai Kun (SS-711), also known as Narwhal, successfully completed its first submerged sea trials on January 29, 2026.
The shipbuilder also revealed that the first submerged sea trial would take place on January 29.
According to reports by CNA, supporters held banners and waved the national flag of the Republic of China (ROC) to show their backing for the indigenous submarine program and the navy.
Taiwanese media have also reported that CSBC has acknowledged that completing all trials of Hai Kun could take more than one year, based on foreign experience in developing a submarine prototype.
Taiwan’s Current Submarine ForceThe Indigenous Defense Submarine (IDS) was unveiled in September 2023 and launched in February 2024.