**OVERVIEW:** The S 318 *Kobben* [Type 207] is a diesel-electric patrol submarine operated by the Royal Norwegian Navy. Originally built as a Type 207 design, the *Kobben* represents a significant modernisation undertaken by Norway to extend the operational life and enhance the capabilities of these compact submarines.

**DETAILS:**
The *Kobben* class was originally a West German design of small coastal submarines intended for operations in the Baltic Sea. The design emphasized stealth and maneuverability in shallow waters, making it well-suited for the complex littoral environments often encountered in the Norwegian fjords and coastal areas. The *Kobben*s were initially delivered to Norway in the 1960s, but the S 318 *Kobben* specifically represents a later upgraded and refurbished vessel, recommissioned in 1997. This modernisation program focused on improving the submarine's sensors, fire control systems, and overall operational effectiveness. These enhancements ensured that the *Kobben* class could continue to contribute to Norway's maritime defense well into the 21st century, performing vital roles in surveillance and coastal protection.

The primary role of the S 318 *Kobben* is anti-submarine warfare (ASW) in littoral environments, although it is also capable of anti-surface warfare (ASuW). The submarine's small size and quiet operation make it particularly effective in detecting and tracking enemy submarines operating in shallow or confined waters. Furthermore, it contributes to maritime surveillance and intelligence gathering within Norway's exclusive economic zone. The installation of the Type 1007 navigation radar supports safe navigation and surface search operations, while the DBQS-21F sonar, likely a component of the PSU 83 suite, enhances the submarine's passive and active sonar capabilities for detecting and classifying underwater contacts. Acoustic intercept equipment further augments its ability to detect and analyze enemy sonar transmissions.

The S 318 *Kobben* possesses a range of sensors designed to optimize its operational capabilities. The Generic ESM (Electronic Support Measures) system provides the capability to detect and analyze radar emissions, offering situational awareness of surface and airborne threats. The EDO 1525 system likely enhances the submarine's communications capabilities. The submarine periscopes, equipped with both optical and low-light television (LLTV) sensors, allow for visual observation and target identification in various light conditions. The availability of two periscopes suggests redundancy and the ability to conduct independent observation tasks. While lacking dedicated anti-air warfare (AAW) capability, the submarine's stealth and evasion tactics remain its primary defense against aerial threats. The two 533mm torpedo tubes offer a potent offensive capability against both surface and subsurface targets.

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

**SENSORS:** Generic ESM [Average] || Type 1007 || DBQS-21F [PSU 83] || Generic Acoustic Intercept || EDO 1525 || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

**ARMAMENT:** 533mm TT || 533mm TT