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Japan imposes sanctions on Kawasaki Heavy Industries over 33 years of falsified submarine engine data

Japan has imposed strict sanctions on Kawasaki Heavy Industries after confirming that the company falsified submarine engine test data for more than three decades. The action follows a government ...
Smithsonian Magazine

The Writer Who Built the World’s First Engine-Powered Submarine

A man cannot one day just decide to build a submarine, much less the first powered submarine, much less if that man is a writer. Yet that is just what Narcis Monturiol did. As a young firebrand of the ...
The Diplomat

Panel Urges Japan to Use ‘Next-Generation Propulsion Systems’ in New Submarines

JS Raigei, the fourth Taigei-class diesel-electric submarine with the Japan Maritime Self-Defense Force. Credit: The Japan Maritime Self-Defense Force (JMSDF) A Japanese Defense Ministry panel called ...
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Stealthier submarines: China’s new tech could cut vessel’s engine noise by 50%

Chinese scientists have allegedly made a major breakthrough in submarine stealth technology. According to reports, the team has developed a hybrid active-passive engine vibration isolation system ...
DIGITIMES

Kawasaki banned by Japanese defense ministry over submarine engine fraud, raising export trust concerns

Japan's Ministry of Defense announced in December 2025 that it had suspended Kawasaki Heavy Industries from bidding on ...