South Korean Submarine Deployed to the Strait of Hormuz? Quieter Than a Nuclear Submarine: The Secret of the Dosan Ahn Changho's AIP Technology | Professor Moon Keun-sik

Summary

Professor Moon Keun-sik of Hanyang University discusses the Dosan Ahn Changho submarine, debunking reports that it was deployed to the Strait of Hormuz and explaining that the shallow, narrow waterway makes no operational sense while a Canada visit is confirmed. He explains AIP diesel-submarine technology and compares it with modern nuclear submarines. He argues underwater AI and unmanned submarine operations remain far from practical, while Korea's 3,000-ton diesel submarines and reactor/SMR capabilities are strategically advanced. The main market implications are positive for Korean defense/submarine export competitiveness and nuclear/SMR capability, but cautionary for underwater AI-drone hype.

• Hormuz deployment rumor for Dosan Ahn Changho is refuted; Canada trip is confirmed.
• AIP extends diesel-submarine submerged endurance but is not omnipotent; modern nuclear submarines are also quiet.
• Underwater AI and unmanned submersibles face severe acoustic, target-identification, cost, and legal hurdles.
• Korea's 3,000-ton diesel submarines are assessed as world-class and comparable to Japanese and German designs.
• Korean diesel submarines are presented as an asymmetric deterrent against North Korea's larger submarine fleet.
• Korea's reactor and SMR technology is described as advanced enough to support a future nuclear-powered submarine program.
• Market implication: Korean defense/submarine export and nuclear/SMR themes look supported; underwater AI hype warrants caution.