
German Navy (Deutsche Marine) Type 212cd
The German's latest advanced diesel-electric, hydrogen fuel cell and "air independent propulsion" submarine type 212cd is the latest. It can be operated on either diesel power or AIP power. It is also said to be very quiet, vibration-free and virtually unnoticeable.
First built by Howaldtswerke-Deutsche Werft for the German Navy, these boats are characterized by a high degree of stealthiness. They are also known for being some of the most advanced, non-nuclear modern submarines in the globe. They can run on either diesel or hydrogen fuel cell AIP, enabling them to cruise for up to three weeks without surfacing and without exhaust heat.
These submarines are designed to be highly versatile. They can carry 6 533 mm tubes and can fire any heavy weight 21-inch or heavier torpedos. A unique "X” configuration is added to the after-planes. This allows them maneuver in shallow water, while maintaining their ability to attack surface vessels and submarines.

The Type 039 was the base of the German Navy's original design. The type 212's original design was based on the Type-039. It has a stepped conning tower, which rises to the aft. This is designed to reduce its acoustic signature. The double-deck manning arrangement was also included. It was redesigned to provide more living space and better weapon loading areas.
These improvements did not make the Type-212A more competitive with other modern diesel-electric boats. The German Navy opted to develop a new version of the type, the Type 212A "G," which was designed to further reduce its acoustic signature. The boat's sonar signature is reduced by the design which incorporates a larger outer hull.
The Type 212A submarine has improved over its predecessors since its 2006 introduction. The Type 212A includes more powerful, effective weapons as well as a superior command and controlling system, advanced communications systems, increased reconnaissance capabilities, and a more advanced communication system.
The German Bundesmarine currently operates six Type 212A boats. These submarines are the most modern in the world, offering a higher level of stealth and a longer operating life.

These submarines can transport 6 forward torpedo tube and have an "X" configuration that allows for them to be repositioned to fire either way. This provides unmatched shallow water maneuverability. They can also carry heavy-weight 21-inch torpedos, a variety of naval mines, or various types of anti-ship missiles.
It is not yet clear how many Type 212s Germany's Navy will use in the future. However, plans exist to replace certain older boats with newer models. Thyssenkrupp will build the Type 212CD submarine for the Norwegian and German Navys. It has a similar appearance as the 212A but has larger guns and more powerful weapons.
The 212CD submarines will be delivered in 2023 to the German and Norwegian navy, respectively. The German and Norwegian governments are expected to sign the contract for construction of these submarines this summer after parliamentary approval has been obtained in both countries.