Taiwan Faces Submarine Capability Gap Amid MK48 Torpedo Delays

Taiwan's procurement of MK48 Mod6 AT heavy torpedoes from the United States is experiencing significant delays, creating a potential capability gap for its Hai Lung, Hai Hu, and the newly constructed Hai Kun submarines. The Ministry of National Defense has confirmed ongoing intensive discussions with U.S. officials to explore alternative solutions, with borrowing current U.S. Navy inventory torpedoes being a primary consideration.

While other nations like Germany, the UK, France, Italy, Japan, and South Korea produce comparable heavy torpedoes, political and technical hurdles prevent Taiwan from acquiring them. European and South Korean manufacturers face restrictions due to the "One China policy" and geopolitical trade interests. Japan, despite easing export regulations, is legally barred from exporting heavy torpedoes, and doing so would severely damage its diplomatic relationship with China.

More critically, Taiwan's submarines, including the upgraded Hai Lung class and the new Hai Kun, were designed with U.S. MK48 torpedo parameters and American standards integrated into their combat systems. Replacing these with European, Korean, or Japanese torpedoes would necessitate a complete overhaul of the submarines' software and fire control interfaces, a process estimated to take years and exacerbate the capability gap.

Furthermore, the global market for heavy torpedoes lacks readily available stock. These weapons are expensive, with individual units costing between $5 million and $6 million, and their components have limited shelf lives. Manufacturers typically produce them only after receiving official purchase orders. Given these political, technical, and logistical challenges, borrowing U.S. Navy inventory torpedoes remains the most feasible short-term solution to address the MK48 procurement delays.