Taiwan's Indigenously-built Submarine Submerged & Surfaced in Harbor Trials

The Hai Kun, Taiwan’s first indigenously built submarine, has demonstrated its ability to submerge and surface without issues during harbor trials, according to CSBC General Manager Tsai Kun-Tsung.

Speaking at a media briefing, Tsai assured that the submarine's weight control was highly precise, with a margin of error limited to 0.5%.

The Hai Kun, currently undergoing Harbor Acceptance Tests, is scheduled for Sea Acceptance Tests in April 2025 and is expected to be delivered to the Navy by November.

The Ministry of National Defense has adopted a "2+3+2" phased approach to produce a total of eight submarines. The first two submarines, including the Hai Kun, will serve as the foundation for design improvements, incorporating feedback from the Navy. The next phase will consist of three enhanced models, with the final two submarines incorporating further advancements.

The program timeline has been extended, with completion anticipated by 2029. This delay is attributed to phased deliveries of the MK-48 Mod 6 AT torpedoes, affected by global supply chain challenges.

To support the program, Taiwan’s Executive Yuan has approved a budget of NT$284 billion. This allocation covers construction, crew training, weapons systems, and supporting infrastructure. The budget ensures the submarines will be equipped with anti-ship missiles and torpedoes, delivering full operational capabilities.

Tsai emphasized that all equipment onboard the Hai Kun has passed Factory Acceptance Tests and received certification from foreign technical consultants, affirming compliance with Navy requirements.