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China Has a New Way to Find and Kill U.S. Navy Submarines

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China Has a New Way to Find and Kill U.S. Navy Submarines

Caleb Larson

A new open-source investigation has revealed that China recently launched their third anti-submarine detection ship at a shipbuilding facility in Wuhan, augmenting Beijing’s ability to detect submarines.

The ship is most likely a SWATH design, or Small Waterplane-Area Twin Hull. The twin-hull design is both very stable, even at high speeds or in rough seas, and is also known for being very quiet, a useful quality to have for a ship intended to use sonar and other acoustic listening devices to detect submarines.

The Chinese design is likely broadly similar to American SWATH designs, which are noted for having long-range and high endurance.

SWATH-type ships track submarines by trailing towed sonar devices behind them on long spools of cable, and can actively detect submarines by shooting “pings” into the ocean and listening to the bounce-back for submarines hiding in the deep.

Japan’s Maritime Self-Defense Forces operate SWATH ships as well, known as the Hibiki-class, with the third of the class just recently entering service.

The Cold War-era class’ operating costs are reportedly split between the United States and Japan, and the data swept up by the Japanese ships is shared with Washington as well. This gives the United States in effect more ears in the water at a lower cost.

Full story https://www.19fortyfive.com/2021/04/china-has-a-new-way-to-find-and-kill-u-s-navy-submarines/