**OVERVIEW:** The S 110 *Glavkos* [Type 209-1100] is a diesel-electric attack submarine (SSK) operated by the Hellenic Navy. This vessel represents a variant of the globally successful Type 209 design, specifically the 1100-ton model. Commissioned in 2000, *Glavkos* provides a modern underwater warfare capability to the Greek fleet.

**DETAILS:**
The Type 209 submarine represents a proven and widely exported design developed by Howaldtswerke-Deutsche Werft (HDW) of Germany. The Type 209-1100 variant, as embodied by *Glavkos*, is characterized by its compact size and optimized design for operations in littoral environments. The design philosophy prioritizes stealth, endurance, and ease of maintenance, making it a cost-effective platform for nations with regional maritime security concerns. The acquisition of the Type 209 submarines was a significant modernization effort for the Hellenic Navy, enhancing its ability to project power and safeguard its maritime interests in the Aegean Sea and Eastern Mediterranean. The Type 209's modular construction allows for easy upgrades and integration of new technologies throughout its service life, ensuring its continued relevance in the face of evolving threats.

*Glavkos*, like other Type 209 submarines, is primarily designed for anti-submarine warfare (ASW) and anti-surface warfare (ASuW) roles. It can also be utilized for intelligence gathering, surveillance, and reconnaissance (ISR) missions. The submarine's diesel-electric propulsion system allows for extended submerged operations, enabling it to conduct covert patrols and effectively prosecute targets of opportunity. The vessel's torpedo armament provides a potent offensive capability against both surface ships and submarines. Given the proximity of potential adversaries and the complex underwater environment of the Aegean, the *Glavkos* offers a significant strategic advantage to the Hellenic Navy. The vessel’s operational profile likely focuses on defending key naval chokepoints and sea lanes, as well as participating in joint exercises with allied navies to enhance interoperability.

The sensor suite of *Glavkos* provides a comprehensive picture of the underwater battlespace. The PRS 3-15 sonar offers active and passive detection capabilities, while the THD 1030 Calypso II radar is likely used for surface search and navigation. The CSU 83 sonar is likely a close-range detection system, enhancing situational awareness in confined waters. Electronic warfare support is provided by the AR-700S5 suite. The Type 242 Sealion radar intercept system offers the capability to detect and classify radar emissions from surface vessels and aircraft. The IPS CSU 3 and MAS 83 systems likely contribute to integrated platform management and acoustic intelligence gathering, respectively. The OMS 100 / SERO 400 periscope suite provides visual and electro-optical observation capabilities, crucial for target identification and navigation in challenging conditions. The vessel’s 533mm torpedo tubes enable it to employ a variety of torpedoes for engaging both surface and subsurface targets. The inclusion of a signal ejector suggests the capability to deploy countermeasures and communications buoys.

**SPECIFICATION:** Length: 54.1 m || Beam: 6.2 m || Draft: 5.9 m || Disp: 1100 t

**SENSORS:** PRS 3-15 || THD 1030 Calypso II || CSU 83 || AR-700S5 || Type 242 Sealion || IPS CSU 3 || MAS 83 || OMS 100 / SERO 400 Periscope Suite

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