OVERVIEW: The A 19 Gotland is a diesel-electric submarine of the Gotland class, operated by the Swedish Navy. Known for their exceptionally quiet operation due to advanced Stirling Air Independent Propulsion (AIP), these submarines represent a significant advancement in conventional submarine technology.

DETAILS:
The Gotland class was developed in the early to mid-1990s as a successor to the Västergötland class. The design emphasized stealth, maneuverability in shallow waters, and endurance. A key feature is the integration of Stirling AIP, allowing for significantly extended submerged endurance compared to conventional diesel-electric submarines. This technology was developed by Kockums (now Saab Kockums) and burns liquid oxygen and diesel fuel in a closed cycle, providing power for propulsion and onboard systems without the need for atmospheric oxygen. This reduces the need for frequent snorkeling to recharge batteries, drastically decreasing the risk of detection. The hull is constructed of high-strength steel, optimized for underwater performance.

The primary roles of the Gotland class are anti-submarine warfare (ASW), anti-surface warfare (ASuW), and intelligence gathering. Their quiet operation and advanced sensor suite make them highly effective in detecting and tracking enemy submarines and surface vessels. The installation of the Manta XL towed array sonar significantly enhances long-range submarine detection capabilities. The Scanter surface search radar provides situational awareness in both submerged and surfaced conditions. The CSU 90-2 hull-mounted and flank array sonars provide passive and active detection capabilities. Close-in detection and obstacle avoidance are supported by the IPS CSU 90 sonar. The MAS 90 magnetic anomaly detector can be used to detect submerged submarines at shorter ranges, particularly in shallow waters. Both LLTV and optical Generic Submarine Periscopes aid in visual surveillance, navigation, and target identification when near the surface.

The Gotland class is equipped with both 533mm and 400mm torpedo tubes. The 533mm tubes can launch heavy anti-ship and anti-submarine torpedoes. The 400mm tubes are likely used for lighter torpedoes intended for close-range engagements or countermeasures. The inclusion of a signal ejector suggests the capability to deploy decoys and other countermeasures to enhance survivability in hostile environments. The combination of advanced sensors, quiet operation, and versatile weapon systems makes the Gotland class a formidable asset for the Swedish Navy.

SPECIFICATION: Length: 60.4 m || Beam: 6.2 m || Draft: 5.6 m || Disp: 1494 t

SENSORS: Manta XL || Scanter || CSU 90-2 Hull || CSU 90-2 Flank || IPS CSU 90 || MAS 90 || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

ARMAMENT: 533mm TT || 400mm TT || Signal Ejector