ThyssenKrupp Invincible Class

Overview

Singapore operates four Invincible-class submarines (Type 218SG), the most advanced conventional submarines in Southeast Asia. Developed by ThyssenKrupp Marine Systems Germany specifically for Singapore, each vessel features fuel-cell AIP enabling weeks of submerged endurance without snorkeling. Armament includes heavyweight torpedoes and Harpoon anti-ship missiles. All four vessels were commissioned between 2021 and 2024, giving Singapore a complete modern submarine fleet providing credible sea denial throughout the Malacca Strait and surrounding waters.

Operators

• Singapore
• Germany

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