RAF Bicester: A Premier Interwar Bomber Airfield and Training Hub

Origins and Early Development of RAF Bicester

RAF Bicester began as a Royal Flying Corps training airfield during World War I, established in 1916 to prepare aircrew for service on the Western Front. Initially equipped with canvas Bessonneau hangars and basic facilities, the site hosted the 118 Squadron and a Training Depot Station by 1917. After a brief closure in 1920, the airfield was selected for redevelopment as a bomber base under the RAF's expansion program initiated by Sir Hugh Trenchard in the early 1920s. This redevelopment included construction of permanent hangars and expanded airfield boundaries, setting the stage for Bicester’s critical role in bomber operations and training.

Interwar Expansion and Aircraft Innovation

Throughout the 1920s and 1930s, RAF Bicester grew significantly to accommodate larger and more advanced bomber aircraft. It was home to squadrons operating Vickers Virginias, Hawker Horsleys, and later the Boulton Paul Sidestrand and Overstrand bombers. The arrival of Bristol Blenheim bombers in the late 1930s marked the station's transition to modern airpower. Notably, RAF Bicester was the secret assembly and launch site of the first prototype Handley Page Halifax heavy bomber in October 1939, which became one of the RAF’s most important four-engine bombers during World War II.

World War II Training and Operational Role

During the Second World War, RAF Bicester primarily served as an Operational Training Unit (OTU) for bomber crews, including pilots, navigators, and gunners from Britain and Commonwealth countries such as Canada, Australia, and New Zealand. The airfield was expanded with bomb stores, defensive pillboxes, and dispersed aircraft parking areas characteristic of wartime bomber stations. It supported the preparation of crews for critical missions, including those involved in the D-Day landings. While no operational sorties were flown directly from Bicester, its training role was vital to Bomber Command’s effectiveness.

Postwar Uses and Preservation Efforts

After the war, RAF Bicester transitioned to various support roles including aircraft crash investigation, repair, parachute servicing, and gliding operations. The domestic site was sold in 2010, but the airfield and many original buildings remain remarkably intact. Recognized as a Scheduled Monument, RAF Bicester is the best-preserved example of an interwar bomber base in the UK. Historic England and local heritage groups have worked to protect and restore key structures such as hangars, air-raid shelters, and bomb stores, preserving the site’s military landscape and architectural integrity.

Architectural and Landscape Features of Note

The airfield retains its 1939 grass flying field boundaries and a collection of C-type hangars built in the 1930s. The layout includes panhandle aircraft stands for dispersed parking, bomb stores constructed in the late 1920s and 1930s, and defensive trenches and pillboxes from early war years. The control tower built in 1938 exemplifies the period’s functional design. The site’s air ministry railway spur and workshops add to its industrial heritage. Together, these features provide a comprehensive snapshot of RAF bomber station design and operation during the interwar and wartime periods.

Legacy and Contemporary Significance

RAF Bicester stands as a testament to the RAF’s strategic development as the world’s first independent air force, emphasizing offensive bomber capabilities and rigorous crew training. Its preservation offers insight into military aviation history, technological innovation, and wartime preparation. Today, the site is a focal point for heritage conservation and education, celebrating the bravery and skill of those who trained and worked here. It also serves as a cultural landmark linking the local community with national and international military history.