RAF Mount Batten

RAF Mount Batten was a prominent seaplane and flying boat station on the Plymouth Sound foreshore in Plymouth, Devon with a heritage spanning from World War I through the late Cold War. The site supported pioneering maritime aviation, hosting experimental squadrons, air-sea rescue units, and cross-Channel air links that connected to Imperial Airways, British Overseas Airways Corporation, and later British Airways. Its strategic position influenced operations in the Battle of Britain era, the Battle of the Atlantic, and postwar surveillance of the North Atlantic Treaty Organization approaches.

History

Established on the Mount Batten peninsula during 1917 as a Royal Naval Air Service seaplane station, the base evolved through the Royal Air Force reorganisation of 1918 and into the interwar period as a centre for maritime aviation. During the 1920s and 1930s it hosted experimental flights linked to Supermarine, Short Brothers, Phoenix Works developments, and transatlantic support for Imperial Conferences and Empire Air Mail Scheme services. In World War II Mount Batten's flying boats and Coastal Command detachments participated in anti-submarine patrols, convoy escort duties, and search-and-rescue operations supporting convoys bound for Gibraltar, Malta, and the Arctic convoys to Murmansk. Post-1945, the station accommodated flying boats of the Royal Navy's Fleet Air Arm and continued as a base for Air-Sea Rescue squadrons during Cold War tensions involving Soviet Navy submarine activity. The 1960s and 1970s saw a transition to landplane support and training for units associated with RAF Coastal Command and civil operators, before the site closed to military flying in 1992 amid broader defence reviews and consolidation of Ministry of Defence assets.

Facilities and infrastructure

Mount Batten's peninsula location featured sheltered slipways, concrete hangars, and floating docks that enabled operations by Short Sunderland, Consolidated PBY Catalina, and Saunders-Roe Princess flying boats. Shore-based infrastructure included an operations block linked to radio stations that worked with Chain Home radar installations, and maintenance workshops adjacent to the Royal Navy Dockyard, Devonport. Fuel storage and armament magazines were sited with blast-proofing consistent with standards applied at RAF stations across the UK. The airfield complex integrated with civil harbour facilities for passenger transfer to cross-Channel flying boat services, and later incorporated a short hard runway and helipads used by rotary-wing units such as those operating Westland Wessex and Sikorsky S-61 types. Preservation efforts retained period structures including a control tower, slipways, and hangars that demonstrate links to manufacturers like Bristol Aeroplane Company and Vickers-Armstrongs.

Units and aircraft

Throughout its operational life Mount Batten hosted a succession of RAF squadrons and attached units. Notable units included long-serving Coastal Command squadrons operating Short Sunderland flying boats, detachments of No. 220 Squadron RAF, and No. 204 Squadron RAF; later postings involved No. 201 Squadron RAF and various air-sea rescue flights equipped with Supermarine Walrus and Avro Anson platforms. Fleet Air Arm use introduced types such as the Fairey Swordfish for torpedo work and Supermarine Seafire conversions for carrier-related training. Training and support units, including re-equipment flights and maintenance parties, worked on Grumman HU-16 Albatross and transport types used by British Overseas Airways Corporation and successor civil operators. In the late Cold War era electronic calibration and target-towing units employed turboprop and helicopter types for trials connected with Royal Air Force Museum collections and national display teams.

Operations and roles

Mount Batten’s primary roles encompassed maritime reconnaissance, anti-submarine warfare, air-sea rescue, and civil flying boat services. During the Battle of the Atlantic squadrons flew prolonged sorties to detect and deter U-boat threats, working in concert with surface escort forces from Western Approaches Command and convoy systems protecting shipping to Southampton, Liverpool, and Scapa Flow. The station's air-sea rescue units reduced loss rates for downed aircrew in the English Channel and Bay of Biscay, coordinating with hospitals in Plymouth and lifeboat services like the Royal National Lifeboat Institution. Civil operations included Imperial Airways Empire services and postwar commercial routes to Lisbon, Tangier, and transoceanic refuelling stops. Mount Batten also supported experimental testing of anti-submarine sensors, airborne early warning trials, and cooperative exercises with NATO allies including units from the United States Navy and Royal Canadian Air Force.

Post-military use and preservation

After military flying ceased, the site was redeveloped into a mixed civilian hub retaining aviation heritage through a dedicated aviation museum, conservation of hangars, and commemoration plaques recognising wartime service. Adaptive reuse hosted marine leisure facilities, a heliport for corporate and emergency services, and business units housing maritime engineering firms connected to Devonport dockyard contractors. Heritage groups and trusts worked to preserve artefacts and archives relating to squadrons such as No. 201 Squadron RAF and manufacturers like Short Brothers, collaborating with local councils and organisations including English Heritage and the National Trust on conservation planning. Annual commemorations attract veterans from Coastal Command Association, former Fleet Air Arm aircrew, and civic leaders from Plymouth City Council to honour contributions to campaigns from World War I through Cold War service.

Category:Royal Air Force stations in Devon