OVERVIEW: The S 98 *Emily Hobhouse* [Daphne] is a diesel-electric submarine in service with the South African Navy. One of three Daphne-class submarines procured in the late 1960s and early 1970s, she underwent significant modernization programs to extend her operational life and enhance her capabilities, bringing her systems largely up to par with more modern designs.

DETAILS: The *Daphne*-class submarines were originally designed and built by France's Direction des Constructions et Armes Navales (DCAN) in the 1960s. South Africa acquired three of these submarines (SAS *Maria van Riebeeck*, SAS *Emily Hobhouse*, and SAS *Johanna van der Merwe*) primarily for anti-submarine warfare (ASW) operations in the South Atlantic and Indian Oceans. The submarines played a crucial role during the Cold War era, providing a deterrent against Soviet naval activity in the region. Following the end of Apartheid and subsequent defense reviews, the *Maria van Riebeeck* and *Johanna van der Merwe* were decommissioned, leaving the *Emily Hobhouse* as the sole operational submarine. This necessitated a comprehensive modernization program to ensure its continued relevance in the post-Cold War era. The modernization focused on upgrading the submarine’s sensor suite, communications equipment, and fire control systems, ensuring compatibility with modern naval operations.

The *Emily Hobhouse* primarily undertakes anti-surface warfare (ASuW) and intelligence, surveillance, and reconnaissance (ISR) missions. The upgraded sensor suite allows the submarine to effectively monitor maritime traffic and conduct covert surveillance operations in its operational area. The TRS 3100 Calypso III (designated DRUA 33C by Thomson-CSF) radar provides surface search and navigation capabilities. The UEC (presumably a South African firm, Underwater Engineering Company) Hull Passive Search & Track and Passive Ranging Flank Array systems significantly enhance the submarine's acoustic intelligence gathering capabilities, allowing it to detect and classify a wide range of surface and subsurface contacts at extended ranges. The UEC Acoustic Intercept Array provides valuable Electronic Support Measures (ESM) capability, intercepting and analyzing enemy communications and radar signals. The presence of both optical and low-light television (LLTV) periscopes provides redundant means of visual observation and target identification.

The *Emily Hobhouse*'s combat capabilities are centered around its 550mm torpedo tubes. While the specific torpedo types employed are not explicitly stated, the 550mm tube is compatible with a range of modern heavyweight torpedoes optimized for both anti-submarine and anti-surface warfare roles. The modernized fire control system ensures accurate targeting and effective engagement of enemy vessels. The Shrike UME-100 electronic warfare support measures (ESM) suite further contributes to situational awareness by detecting and analyzing radar emissions, allowing the submarine to avoid detection or prepare for potential engagements. The signal ejector provides a means for deploying countermeasures and communicating with other vessels without surfacing. The submarine's relatively small size and quiet operation, coupled with its modern sensor suite, make it a formidable asset for maintaining maritime security and projecting South African naval power.

SPECIFICATION: Length: 57.8 m || Beam: 6.7 m || Draft: 5.3 m || Disp: 860 t

SENSORS: TRS 3100 Calypso III [DRUA 33C] || DUUA 1B || Shrike UME-100 || Generic Submarine Periscope, Optical || Generic Submarine Periscope, LLTV || UEC Hull Passive Search & Track || UEC Passive Ranging Flank Array || UEC Acoustic Intercept Array

ARMAMENT: 550mm TT || 550mm TT || Signal Ejector