Type 212CD (Common Design) is a next-generation conventionally powered attack submarine jointly developed for Germany and Norway and produced by TKMS. Evolving from the proven Type 212A, the 212CD is a substantially larger, longer-range platform optimized for high-end NATO operations, combining a distinctive diamond-shaped low-signature hull, hydrogen fuel-cell air-independent propulsion (AIP), a next-generation PERMASYN® electric motor, extensive signature reduction, advanced sensors and the ORCCA® command-and-weapon architecture. The design supports anti-submarine and anti-surface warfare, intelligence and surveillance, special operations and extended covert deployments. Canada selected TKMS as the preferred supplier for its Canadian Patrol Submarine Project in July 2026 and is negotiating the procurement of up to 12 212CD submarines.
Country users : Germany, Norway; Canada (selected / prospective)
Technical Data
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Armament
Type 212CD is designed around heavyweight torpedo armament, missile integration capability, torpedo countermeasures and interfaces for unmanned vehicles and off-board sensors. The publicly confirmed baseline does not provide an authoritative torpedo-tube count, and currently available secondary sources differ on the number installed; the armament configuration is therefore more reliably described by confirmed weapon capabilities rather than an unverified launcher count. HDW Class 212CD submarines are associated with the new DM2A5 heavyweight torpedo, for which TKMS and Germany's Federal Office of Bundeswehr Equipment, Information Technology and In-Service Support signed a framework agreement in December 2025 covering development, production and delivery for the 212CD programme. The DM2A5 incorporates digital sonar technology and optimized fibre-optic guidance and data exchange. HDW Class 212CD incorporates provisions for missiles, torpedo countermeasures and unmanned systems. IDAS is being developed by Diehl Defence and TKMS as a submarine-launched guided weapon intended to engage airborne threats from a submerged submarine, while additional hard-kill torpedo-defence and unmanned-system capabilities remain areas of development and integration. These should not be regarded as standard fit across every 212CD configuration unless individually contracted.
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Design
Type 212CD uses an enlarged and distinctively diamond-shaped external hull developed to reduce the submarine's detectable signature while maintaining high hydrodynamic efficiency and manoeuvrability. The low-signature geometry is complemented by non-magnetic construction and extensive measures to minimize acoustic and magnetic detectability. HDW Class 212CD incorporates a non-magnetic steel, double-hull arrangement and is designed for worldwide operations rather than being restricted to the Baltic and littoral operating environments traditionally associated with smaller German conventional submarines. Its increased dimensions provide additional capacity for extended missions, sensors, mission systems and payloads while retaining the stealth-focused design philosophy established by the Type 212A. HDW Class 212CD includes accommodation and mission-support provisions for Special Operations Forces, a diver lock, comprehensive safety and rescue systems, and growth margins for future equipment. The design is developed in accordance with the Naval Submarine Code and incorporates provisions for future capability evolution throughout its operational life.
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Propulsion
Type 212CD uses a diesel-electric propulsion architecture supplemented by hydrogen fuel-cell air-independent propulsion. Two diesel-generator sets provide conventional electrical generation, while the advanced submarine fuel-cell system enables extended underwater operation without dependence on atmospheric oxygen. Propulsive power is delivered through a next-generation PERMASYN® electric motor, enabling a maximum submerged speed of more than 20 knots. HDW Class 212CD is optimized for extremely low acoustic output during submerged operations, with the AIP system substantially reducing the requirement to operate diesel generators or expose a snorkel. The electrical architecture is prepared for lithium-ion battery technology, providing a path toward increased stored electrical energy, rapid energy availability and enhanced tactical flexibility as customer configurations evolve.
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Sensors and detection systems
Type 212CD uses an integrated command-and-surveillance architecture providing 360-degree sensor coverage and combining active and passive sensor systems with electronic-support measures, navigation systems, tactical communications and weapon control. ORCCA® forms the central combat architecture and uses virtualized, server-based processing to integrate information from multiple onboard systems into the submarine's tactical picture. HDW Class 212CD uses a fully digital optronics suite selected for the German-Norwegian programme, including the HENSOLDT OMS 150 multispectral search-and-surveillance mast, OMS 300 low-observable attack mast and i360°OS panoramic surveillance system. The non-hull-penetrating architecture replaces the traditional direct-view periscope concept with digital sensor feeds and provides improved surveillance capability under varying visibility and weather conditions. HDW Class 212CD also incorporates KONGSBERG underwater-navigation systems selected for the German and Norwegian boats, including the SA9510S MkII Mine Avoidance and Navigation Sonar, together with a bottom-navigation system incorporating EM2040 MIL multibeam echo sounders and an EA640 echo-sounder suite. These systems provide underwater obstacle, mine and seabed information to the ORCCA navigation architecture, supporting safe submerged navigation in demanding environments.
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