Diving School, Royal Navy

Diving School, Royal Navy
Unit name	Diving School, Royal Navy
Country	United Kingdom
Branch	Royal Navy
Type	Specialist training establishment
Role	Underwater warfare
Garrison	Portsmouth; Gosport
Battles	Falklands War; Gulf War (1990–1991); Northern Ireland peace process

Diving School, Royal Navy is the primary training establishment of the Royal Navy responsible for training naval divers, clearance divers, and specialist underwater technicians. The School provides courses in breath-hold and breathing apparatus diving, salvage, explosive ordnance disposal, and underwater engineering, supporting operations by units such as Fleet Diving Squadron, Submarine Service, and Royal Marines Commandos. It has evolved through links with historic institutions including HMS Excellent, Portsmouth Dockyard, and civilian diving organisations such as Society for Underwater Technology.

History

The origin of organised naval diving instruction traces to pioneering work at Portsmouth Dockyard and Devonport in the 19th century, intersecting with trials by Admiral Sir John Fisher's reforms and the needs of the Crimean War and later First World War. Institutional consolidation occurred between interwar innovations and post‑Second World War restructuring influenced by lessons from Operation Overlord and Battle of the Atlantic. Cold War demands linked the School with Royal Navy Submarine Service recovery and clearance tasks during crises like the Cod Wars and led to doctrinal exchange with United States Navy diving units and NATO partners such as Royal Canadian Navy and Bundesmarine. Modernisation in the late 20th century reflected operational experience from the Falklands War and the Gulf War (1990–1991), while peacetime roles integrated with civil agencies including Ministry of Defence Police and Maritime and Coastguard Agency.

Role and training

The School delivers a pipeline from recruit selection through advanced qualification, linking with career tracks in Fleet Diving Squadron, Royal Marines, Submarine Rescue Service, and specialist branches such as Royal Navy Medical Service diving medicine. Courses cover candidate screening alongside units such as Royal Navy Reserve elements and use standards referenced against Institution of Mechanical Engineers guidance and international diving codes like those from International Maritime Organization and International Diving Regulators and Certifiers Forum. Training syllabuses include closed-circuit rebreather instruction used by Special Boat Service-aligned divers, surface-supplied apparatus employed by mine countermeasure crews, and explosive ordnance disposal coordination with Defence Equipment and Support. Cadres of instructors maintain links with University of Portsmouth academic research and Defence Science and Technology Laboratory innovations.

Facilities and locations

Facilities historically centred on Gosport and Portsmouth, with deep‑water training ranges off Isle of Wight and shore‑based hyperbaric chambers near Haslar Hospital and Royal Naval Hospital Haslar. Shore complexes include tidal pools, compressed air workshops accredited by British Standards Institution, and recompression facilities compatible with protocols from World Health Organization and HMS Sultan technical training. Mobile diving barges and range support operate from HMNB Portsmouth and historical adjuncts at HMNB Devonport and Faslane/MOD Clyde, while links with civilian ports such as Southampton support salvage exercises coordinated with Royal National Lifeboat Institution.

Equipment and diving techniques

Instruction encompasses open‑circuit aqualungs associated with manufacturers like Aqua‑Lung International and closed‑circuit rebreathers utilising technologies examined in partnership with Rolls‑Royce Holdings and BAE Systems. Surface‑supplied systems, umbilical management, hot water suits, and mixed‑gas decompression techniques reflect interoperable standards shared with United States Navy Experimental Diving Unit and NATO diving centres such as Centro Subacqueo della Marina Militare. Salvage techniques reference historical practices from SS Great Britain recoveries and modern methods used during MV Derbyshire investigations. Underwater cutting, welding, and hull repair training use equipment comparable to commercial standards from TechnipFMC and ThyssenKrupp Marine Systems while explosive ordnance disposal uses charges and render‑safe procedures aligned to doctrine developed with Explosive Ordnance Disposal Regiment (Royal Logistic Corps) partners.

Notable operations and deployments

Personnel trained at the School have taken part in high‑profile tasks including clearance of ordnance after Second World War wreck recoveries, salvage and search‑and‑rescue during the Herald of Free Enterprise disaster responses, and improvised explosive recognition in Northern Ireland peace process operations. Deployments extended to conflict theatres during the Falklands War and Gulf War (1990–1991), supporting Operation Granby and coordinated with allies in NATO taskings. Divers have contributed to submarine rescue incidents comparable to Thresher (SSN-593)‑era reforms and to environmental response following shipping incidents such as Braer and Sea Empress where maritime archaeology teams from National Maritime Museum and Historic England advised operations.

Organisation and command

The School sits within operational and training command structures reporting through Naval Personnel Command and coordinating with Fleet Commander and capability managers in Ministry of Defence. Leadership has historically been held by senior officers with specialist qualifications from institutions like Royal Naval College, Greenwich and professional accreditation via bodies such as Institute of Diving. Liaison elements maintain ties with Joint Forces Command, Defence Equipment and Support, and international partners including Royal Australian Navy and French Navy diving schools.

Insignia and traditions

Insignia feature symbols of maritime salvage and diving heritage, drawing on emblematic imagery common to units like Fleet Air Arm wings and Royal Marines cap badges, and retaining ceremonial links with establishments such as HMS Excellent. Traditions include commemorations on anniversaries associated with historic wreck recoveries and remembrance of divers lost in incidents linked to SS Great Britain recoveries and Cold War submarine accidents, often observed alongside Plymouth naval civic ceremonies.

Category:Royal Navy training establishments Category:Military diving