OVERVIEW: The Gal [Type 540, Type 206 Mod] is a diesel-electric submarine operated by the Israeli Navy, representing a significant modification of the German Type 206 design. Commissioned in 1984, the class was specifically tailored to meet the operational requirements of the Israeli underwater warfare environment.

DETAILS: The Gal class originated from a need within the Israeli Navy for a modern and capable submarine force following the Six-Day War. Facing an arms embargo from several Western nations, Israel turned to the United Kingdom to acquire a design and construction partner. Vickers Shipbuilding and Engineering (VSEL) secured the contract to build a modified Type 206 submarine, designated Type 540, at their Barrow-in-Furness shipyard. Three vessels were eventually delivered. The modifications centered on improving operational suitability for the warm, shallow waters of the Eastern Mediterranean Sea, which included enhanced air conditioning and modifications to sensor and communication systems. The Type 540 designation reflects the unique design features distinguishing it from the standard German Type 206. These included an enlarged internal volume to accommodate enhanced sensor suites and crew facilities, reflecting a design philosophy centered on extended patrol endurance and enhanced combat effectiveness in the littoral environment.

The primary role of the Gal class submarines is anti-submarine warfare (ASW), anti-surface warfare (ASuW), and intelligence gathering within the Eastern Mediterranean. Given the relatively shallow operating environment, the Gal class prioritizes stealth and maneuverability to effectively prosecute targets and avoid detection. The CSU 3-4 sonar system, in conjunction with the EDO 1110, provides a capable passive and active sonar suite for target detection and classification. The EDO 900 series presumably serves as a flank array sonar, enhancing passive detection ranges in noisy littoral environments. Its ASuW capabilities are reliant on torpedoes. Intelligence gathering is facilitated by the electronic support measures (ESM) suite, indicated by the Timnex 4CH(V)1 system, providing the ability to monitor enemy communications and radar emissions.

The installation of the Type 1006(1) [KH 19/9A] radar enhances surface navigation and target acquisition capabilities when operating on the surface or at periscope depth. Two Generic Submarine Periscopes, one optical and one LLTV (Low Light Television) equipped, provide visual and enhanced visual surveillance capabilities, respectively. The IPS CSU 3 navigation system provides precise positioning and navigation data, essential for covert operations and accurate weapon delivery. The forward and aft mounted 533mm torpedo tubes allows for engagement of multiple targets and provides redundancy in combat situations. The shallow water operations capability is further enhanced by careful attention to noise reduction features during construction and ongoing maintenance, making the Gal class a difficult adversary to detect in its operational theater.

SPECIFICATION: Length: 48.6 m || Beam: 4.6 m || Draft: 4.5 m || Disp: 450 t

SENSORS: CSU 3-4 || EDO 1110 || Type 1006(1) [KH 19/9A] || Timnex 4CH(V)1 || IPS CSU 3 || EDO 900 || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV

ARMAMENT: 533mm TT || 533mm TT