Partly owing to the "X" arrangement of the stern planes, the
Type 212 is capable of operating in as little as of water. This is a long-standing requirement for German submarine designs, enabling them to pass a strategic point in the Baltic Sea (the
Kadetrinne) submerged. This allows it to come closer to shore than most contemporary submarines.
Commandos operating from the boat can surface The prismatic hull cross-section and smoothly faired transitions from the hull to the
sail improve the boat's
stealth characteristics.
Air-independent propulsion Although hydrogen-oxygen propulsion had been considered for submarines as early as World War I, the concept was not very successful until recently due to fire and explosion concerns. In the
Type 212 this has been countered by storing the fuel and oxidizer in tanks outside the crew space, between the
pressure hull and outer
light hull. The gases are piped through the pressure hull to the
fuel cells as needed to generate electricity, but at any given time there is only a very small amount of gas present in the crew space. In October 2024 it was reported that a new lithium-ion battery system was developed by Thyssenkrupp Marine Systems, which will be installed and tested on a existing Type 212A submarine.
Weapons in
Kiel harbor harbor, Estonia The
Type 212A is capable of launching the
fiber optic-guided
DM2A4 () heavyweight torpedo, the
WASS BlackShark torpedo and short-range missiles from its six torpedo tubes, which use a water ram expulsion system. Future capability may include tube-launched cruise missiles. The short-range
IDAS missile (based on the
IRIS-T missile), primarily intended for use against air threats as well as small and medium-sized sea and near-land targets, is currently being developed by
Diehl BGT Defence to be fired from Type 212's torpedo tubes. IDAS is fiber-optic guided and has a range of approximately . Four missiles fit in one torpedo tube, stored in a magazine. First deliveries of IDAS for the
German Navy were scheduled from 2014 on. A 30mm auto-cannon called
Muräne (
moray) to support diver operations and to give warning shots was being considered presumably sometime before 2014 and possibly still is, as well. The cannon, probably a version of the
Rheinmetall RMK30, will be stored in a retractable mast and can be fired without the boat surfacing. The mast will, presumably from 2014 onwards, also be designed to contain three
Aladin UAVs for reconnaissance missions. This mast is likely to be mounted on the second batch of Type 212 submarines for the German Navy. ==Operations==