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| No. 627 Squadron RAF | |
|---|---|
| Unit name | No. 627 Squadron RAF |
| Dates | 1943–1946 |
| Country | United Kingdom |
| Branch | Royal Air Force |
| Role | Bomber / Pathfinding |
| Command structure | No. 8 Group RAF, RAF Bomber Command |
| Garrison | RAF Wyton |
| Aircraft bomber | Avro Lancaster, de Havilland Mosquito |
No. 627 Squadron RAF was a Royal Air Force bomber and pathfinder squadron formed during the Second World War, operating in strategic bombing and precision navigation roles under RAF Bomber Command and No. 8 Group RAF. The squadron flew operations against targets in Nazi Germany, the occupied Netherlands, and occupied France using aircraft types such as the Avro Lancaster and the de Havilland Mosquito, and worked alongside units including No. 150 Squadron RAF, No. 83 Group RAF, and the Pathfinder Force. Its operations connected with larger campaigns such as the Combined Bomber Offensive, the Battle of the Ruhr, and the bombing phases supporting the Allied invasion of Normandy.
Formed in late 1943 amid reorganization of Bomber Command to increase night navigation accuracy and target marking, the squadron joined the Pathfinder Force to improve the accuracy of strategic raids on targets like the Ruhr, Berlin, and Hamburg, coordinating with groups such as No. 5 Group RAF, No. 1 Group RAF, and RAF Coastal Command. During 1944 the unit participated in major operations tied to the strategic bombing campaign and tactical support missions linked to Operation Neptune and the Normandy campaign, in conjunction with formations including Second Tactical Air Force, Bomber Command’s Main Force, and RAF Transport Command. In 1945 the squadron supported final strikes against remaining German industrial centres and contributed to post-hostilities activities associated with the Allied Control Commission and British Air Forces of Occupation.
Established at RAF Wyton, the squadron drew crews and equipment from existing Pathfinder and Main Force squadrons, collaborating with institutions such as RAF Cranfield, RAF Marham, and RAF Scampton during training and early sorties. Initial operations emphasized blind bombing techniques and H2S radar use, integrating technologies developed by teams connected to the Telecommunications Research Establishment and working with navigators trained at the Empire Air Navigation School and the School of Air Support. Early missions included raids connected to the Oil Campaign and attacks on synthetic fuel plants linked to targets in the Ruhr and Berlin industrial complexes.
The squadron operated the twin-engined de Havilland Mosquito for high-speed, low-loss marking and intruder sorties, and made use of Avro Lancaster heavy bombers for heavier loadings when required, paralleling equipment deployments at stations such as RAF Waddington and RAF Coningsby. Aircrew utilised H2S radar sets, Oboe navigation systems, and Gee and Monica aids developed by the Royal Aircraft Establishment and the telecommunications groups based at Bawdsey Manor, coordinating with pathfinder technologies pioneered by RAF personnel and engineers. Maintenance and ground support were conducted with assistance from the RAF Maintenance Command and technical staff trained at the Central Aircraft Depot.
The squadron’s main base at RAF Wyton placed it within the operational network of Bomber Command’s East Anglian stations alongside RAF Mildenhall, RAF Lakenheath, and RAF Feltwell, and it deployed detachments to forward locations for specific missions tied to airfields such as RAF Hemswell and RAF Scampton. Forward and temporary dispersals occurred during intensive operations, linking deployments with airfields used by the Pathfinder Force and with logistic hubs supporting operations into German, Dutch, and French airspace. Postwar movements aligned the unit with stations involved in occupation duties and repatriation tasks connected to RAF Transport Command and the British Air Forces of Occupation.
The squadron took part in key raids forming part of the Combined Bomber Offensive, contributing to operations like the Battle of the Ruhr, the Berlin air campaign, and precision marking during Operation Hurricane and raids supporting Operation Overlord, coordinating with units from No. 1 Group RAF and No. 5 Group RAF. Crews undertook low-level marking and high-speed target indication sorties that reduced losses and improved bombing accuracy relative to earlier phases of the war, employing Oboe and H2S systems developed by scientists associated with the Royal Society and research establishments. Distinguished sorties included missions against synthetic oil works, railway marshalling yards serving the Wehrmacht, and naval installations affecting Kriegsmarine operations in the North Sea and Baltic approaches.
Commanding officers were experienced RAF personnel often drawn from veteran bomber crews and pathfinder specialists, with leadership profiles similar to contemporaries who led squadrons in Bomber Command and the Pathfinder Force. Leadership liaised with senior commanders in Bomber Command such as Air Officer Commanding targets and staff from No. 8 Group RAF headquarters, and worked alongside navigators and flight commanders trained at the Empire Central Flying School and the Central Navigation School.
Following the end of hostilities in Europe and the subsequent drawdown of Bomber Command, the squadron was disbanded in 1946 as part of postwar restructuring alongside other Pathfinder units and air formations within the Royal Air Force and the British Commonwealth Air Training Plan. Its operational experience influenced postwar developments in tactical navigation, radar application, and precision bombing doctrines adopted by RAF training establishments, the Royal Aeronautical Society, and NATO air forces, and its veterans joined associations linked to Bomber Command, remembrance activities at the Imperial War Museum, and commemorations such as the annual Bomber Command Memorial events. Category:Royal Air Force squadrons