The Type XXI is a revolutionary "wonder weapon" that only becomes available near the very end of the war (1944–1945). It is designed to operate almost entirely submerged, with high underwater speeds that can actually outrun some Allied escorts.
The VIIC was a minor evolution of the VIIB, with thicker pressure hull (allowing 250m test depth in-game) and slightly different ballast systems. 568 were built.
& Type IXD2 : Specialized variants for extreme-range missions. silent hunter 3 all submarines
Features a revolutionary hull designed for underwater speed rather than surface travel. It is incredibly fast when submerged, outrunning many surface escorts. It includes a built-in snorkel and advanced sonar.
When you install Silent Hunter 3 vanilla, you have access to , unlocked as you progress through the war years (1939–1945). Each requires a specific renown score and date availability. The Type XXI is a revolutionary "wonder weapon"
: The most numerous class in the game, offering balanced performance and access to various conning tower upgrades and flak gun configurations. Type VIIC/41
High endurance for distant waters, equipped with a powerful 105mm deck gun. Advanced "Electroboat" 568 were built
: A late-war upgrade with a "Atlantic" bridge (Turm IV) designed to carry more anti-aircraft guns and a heavier pressure hull for extreme depths. The Long-Range Cruiser: Type IX
The VIIC can equip the Schnorchel (snorkel) from mid-1944, allowing diesel running at periscope depth. This is a game-changer for surviving Allied air radar (Leigh Light, Metox detection).
: These variants offer better durability and are standard for mid-war patrols.