HMS Dolphin (Portsmouth)
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| HMS Dolphin (Portsmouth) | |
|---|---|
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| Name | HMS Dolphin (Portsmouth) |
| Location | Gosport, Portsmouth |
| Type | Submarine base and depot ship |
| Used | Early 20th century–1998 |
| Occupants | Royal Navy |
HMS Dolphin (Portsmouth) HMS Dolphin (Portsmouth) was the principal Royal Navy submarine base and shore establishment located at Gosport opposite Portsmouth Harbour. Established around a named depot ship and shore facilities, Dolphin developed into the focal point for Royal Navy Submarine Service administration, training, repair and operations through two World Wars and the Cold War. Its evolution intersected with institutions such as HMS Vernon, Admiralty, Ministry of Defence, Royal Naval Reserve, Royal Naval College and naval commands based at Portsmouth Naval Base.
History and construction
Dolphin's origins trace to a sequence of depot ships serving small coastal submarines and early Holland-class experimental boats, involving commanders drawn from Admiralty staff and officers trained at Osborne and HMS Excellent. The shore establishment expanded in the interwar period as the Washington Naval Treaty era emphasized submarine roles; expansion continued during Second World War mobilization under direction from First Sea Lord. Construction phases included conversion of victualling yards and boathouses near Haslar Gunboat Yard and linking to Gosport transport routes such as Gosport Ferry and local rail lines serving Portsmouth and Southsea station. Post‑1945 redevelopment reflected Cold War strategic planning by MOD and coordination with Admiralty Research Laboratory projects.
Role as a submarine base
As the home of the Submarine Service, Dolphin coordinated fleet assignments, crew training and patrol briefings for classes from Holland-class and E11 era boats to Trafalgar-class attack submarines and nuclear-powered patrols. It hosted staff offices that liaised with the Commander-in-Chief, Portsmouth and integrated with Fleet Air Arm and Royal Marines units for joint operations. Dolphin provided logistics for active units during conflicts such as the First World War, Second World War, the Falklands War and Cold War deterrence patrols connected to the UK deterrent. The base also administered shore commands, submarine flotillas, and the pipeline of specialists trained at establishments like HMS Raleigh and Dartmouth Royal Navy College.
Facilities and infrastructure
The compound contained workshops converted from victualling buildings, torpedo stores linked to Vickers-Armstrongs maintenance contracts, battery charging houses for diesel-electric submarine classes, and reactor support liaison offices during the nuclear era with oversight from MOD nuclear safety branches. Diving and escape training used dedicated tanks and mock-up hatches akin to those at HMS Vernon, and medical facilities coordinated with Royal Naval Hospital Haslar. Docking was in Portsmouth Harbour alongside slips and floating docks cooperating with Portsmouth Naval Base drydocks and repair yards including commercial firms like Cammell Laird and naval shipwright yards. Administrative blocks hosted signals rooms interfacing with Admiralty Signal School practices, intelligence cells linked to GCHQ-era communications, and accommodation for ratings and officers connected to HMS Nelson billets.
Notable events and incidents
Dolphin’s operational history intersected with episodes such as losses in First World War and Second World War submarine campaigns including patrols against Imperial German Navy and Kriegsmarine units. The establishment supported rescue and salvage operations after accidents like battery fires and collisions that prompted investigations by boards including the Board of Admiralty and inquiries invoking standards later reflected in Health and Safety at Work etc. Act 1974 practices. During the Cold War, Dolphin managed incidents involving electromagnetic interference with navigation systems and coordinated with Royal Navy Submarine School responses to escape‑training accidents and operational mishaps reported to the Defence Nuclear Safety Committee. It also participated in commemorations such as memorial services for crews lost on boats like HMS Thetis and wartime ceremonies connected to Remembrance Sunday observances.
Decommissioning and legacy
Following strategic consolidation in the late 20th century, HMS Dolphin ceased its role as the main shore base when functions moved to facilities at HMNB Clyde and other MOD establishments; formal decommissioning occurred in 1998. Its legacy endures in submarine doctrine taught at Royal Navy Submarine School curricula, records preserved by the National Museum of the Royal Navy and oral histories archived at institutions such as the Imperial War Museums and local archives in Gosport. Former Dolphin buildings have been repurposed or memorialized by veterans’ associations and charities including the Royal Naval Association, while naval heritage links persist with conservation projects involving Portsmouth Historic Dockyard and local civic bodies. Dolphin’s historical role remains central in studies of Royal Navy submarine development, Cold War maritime strategy, and British naval institutional history.
Category:Royal Navy shore establishments Category:Submarine bases of the United Kingdom