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| Avro Aldershot | |
|---|---|
| Name | Avro Aldershot |
| Type | Heavy day bomber |
| Manufacturer | A.V. Roe and Company |
| First flight | 1920 |
| Introduced | 1921 |
| Retired | 1929 |
| Primary user | Royal Air Force |
| Produced | 1 prototype, 9 production |
Avro Aldershot The Avro Aldershot was a British large single-engined biplane heavy day bomber developed in the immediate post-World War I era by A.V. Roe and Company for the Royal Air Force. Intended to meet Air Ministry specification, the Aldershot exemplified interwar British aviation ambitions alongside contemporaries such as the Handley Page Hyderabad, Vickers Vimy and Hawker Horsley. Its production run was limited, but its design and evaluation influenced later developments at Avro, Hawker, and Armstrong Whitworth.
Design work at A.V. Roe and Company began in response to Air Ministry Specification 2/20, placing the Aldershot in the same procurement milieu as the de Havilland DH.10, Bristol Braemar, and the Fairey Hendon. The prototype first flew in 1920, with trials conducted at Royal Aircraft Establishment test facilities and evaluation sorties staged from RAF Upavon and RAF Martlesham Heath. Competitive assessment included comparisons with the Handley Page Hyderabad and the Bournemouth-built Vickers Victoria, while procurement discussions involved officials from Air Ministry directorates and concerns at Imperial Defence College studies on airpower. Operational requirements were influenced by strategic thinking associated with figures in Royal Air Force staff such as proponents from Bomber Command circles and assessments from the Aeronautical Research Committee.
The Aldershot featured a large single Napier Lion engine powering a conventional two-bay biplane structure, with design principles echoing earlier work by Alliott Verdon Roe and engineering influences from Roy Chadwick and contemporaries at Avro. Structural arrangements used mixed wood-and-metal construction similar to techniques seen at Short Brothers and Handley Page, while aerodynamic refinements paralleled research from the Royal Aircraft Factory and National Physical Laboratory. Defensive armament provisions mirrored concepts trialled on the Handley Page Type O/400 and the DH.4, with provision for gun positions influenced by tactics developed during the Battle of Britain era antecedents and doctrinal studies by H. R. Cox. Crew accommodations and bombing apparatus reflected payload considerations comparable to projects at Vickers and studies from Ministry of Defence (United Kingdom) predecessors.
After acceptance trials the Aldershot entered service with early Royal Air Force squadrons, operating from stations such as RAF Northolt, RAF Bircham Newton, and RAF Bircham. Performance evaluations compared the Aldershot's range and bomb load against the Handley Page Hyderabad and the Avro Aldermaston proposals; logistical support relied on supply chains connecting English Electric workshops and spares provision from Gloucester suppliers. The type participated in large-scale exercises alongside units equipped with the Fairey Hendon and Bristol Bombay, contributing to doctrine later codified in interwar manuals prepared by staff at RAF College Cranwell and briefings delivered at Royal United Services Institute. Withdrawals began as newer twin-engined designs from Hawker and Armstrong Whitworth entered service and as budgetary pressures debated in Houses of Parliament led to rationalisations in force structure.
- Prototype: single prototype evaluated at Royal Aircraft Establishment and by RAF Martlesham Heath engineers. - Production: small batch produced by A.V. Roe and Company for service with Royal Air Force squadrons; incremental modifications were informed by trials conducted at Upavon and feedback from crews trained at RAF Halton.
- Royal Air Force — primary operator, serving at several interwar bases including RAF Bircham Newton, RAF Northolt, RAF Upavon, and units formed at RAF Hendon training establishments.
No complete Aldershot airframes survive in museums such as the Imperial War Museum, the Royal Air Force Museum, or regional collections at Brooklands Museum; artifacts and technical drawings are held in archives at Avro Heritage Museum collections, the National Archives (United Kingdom), and private holdings associated with aviation historians from Royal Aeronautical Society. The type's legacy persisted in lessons taken into postwar projects at Avro and influenced design elements seen in later bombers like the Avro Lancaster through lineage of engineering staff including figures trained on interwar types. The Aldershot is referenced in scholarly works on interwar aviation histories held by institutions such as the Victoria and Albert Museum and cited in period journals from publishers including Flight International and the Aeroplane.
Category:British bomber aircraft 1920–1929