OVERVIEW: The S 322 Tumleren [Type 207, Kobben Class] is a diesel-electric submarine operated by the Royal Danish Navy. Originally built for the Norwegian Navy, she was later transferred to Denmark and modernized, entering service in 1998. The Tumleren, designated S 322, represents a significant asset for Denmark’s maritime defense capabilities within the Baltic Sea and surrounding waters.

DETAILS: The Type 207 Kobben class submarines were originally designed and built in Germany in the 1960s for the Royal Norwegian Navy. Based on the German Type 205, the Kobben class features improved capabilities and were intended for operations in the shallow waters of the Baltic Sea and Norwegian fjords. Their design prioritizes stealth, maneuverability, and ease of maintenance. The acquisition of Kobben class submarines by Denmark provided a cost-effective means of enhancing its submarine fleet, with the Tumleren undergoing modernization to extend its operational lifespan and improve its sensor suite. The Kobben class, although relatively small, offers a potent anti-submarine warfare (ASW) capability, supplemented by anti-surface warfare (ASuW) capabilities.

The S 322 Tumleren's primary roles include anti-submarine warfare (ASW), surveillance and reconnaissance, and support of special operations forces. Its small size and quiet operation make it ideally suited for operating in littoral environments where larger submarines might be at a disadvantage. The Tumleren would conduct patrols in the Baltic Sea, monitoring shipping lanes and potentially acting as an intelligence-gathering platform. Given its relatively shallow draft, the Tumleren is capable of navigating confined waterways, facilitating covert deployment and recovery of special operations teams.

The Tumleren's effectiveness is enhanced by its array of sensors and weapons. The Scanter 009 radar provides surface search capabilities, while the Type 242 Sealion electronic support measures (ESM) system is likely utilized for detecting and identifying radar emissions from surface vessels and aircraft. The DBQS-21F [PSU 83] sonar system, a passive ranging sonar, contributes to the submarine's ASW capabilities by detecting and tracking underwater contacts. The EDO 1525 is a passive ranging sonar also geared towards ASW. The generic acoustic intercept system further enhances its ability to detect and classify underwater threats. The vessel is equipped with both optical and low-light television (LLTV) submarine periscopes, which facilitate visual observation and target identification under varying light conditions. Armament consists of 533mm torpedo tubes, capable of launching a variety of torpedoes against surface and subsurface targets, including wire-guided torpedoes providing extended range and improved accuracy.

SPECIFICATION: Length: 47.2 m || Beam: 4.7 m || Draft: 3.8 m || Disp: 435 t

SENSORS: Scanter 009 || Type 242 Sealion || DBQS-21F [PSU 83] || Generic Acoustic Intercept || EDO 1525 || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

ARMAMENT: 533mm TT || 533mm TT