De Havilland Dragon

De Havilland Dragon
Name	De Havilland Dragon
Type	Small twin-engined biplane airliner
Manufacturer	De Havilland Aircraft Company
First flight	1929
Introduced	1932
Retired	various
Primary users	Imperial Airways, Royal Air Force
Produced	1929–1932
Number built	~156

De Havilland Dragon The De Havilland Dragon was a 1930s twin-engined biplane airliner and transport produced by the De Havilland Aircraft Company and used by airlines and armed services including Imperial Airways, Royal Air Force, and colonial carriers. Designed during the interwar period alongside contemporaries such as the Avro 618 Ten, Handley Page H.P.42, and Short Empire, the Dragon served on European, African, and Asian routes and later in World War II roles including communications and air ambulance duties. Noted for its wooden construction and reliable Gipsy Six engines, the type influenced subsequent de Havilland designs such as the Dragon Rapide and the Albatross.

Development and Design

The Dragon originated in the late 1920s at the Hatfield Aerodrome works of the De Havilland Aircraft Company under chief designer Geoffrey de Havilland with assistance from engineers who had worked on the DH.60 Moth, the DH.83 Fox Moth, and the DH.84 Dragon family lineage. Development responded to requirements from operators like Imperial Airways, Australian National Airways, and various colonial administrations demanding short-haul feeders comparable to the Air Ministry specifications of the era and influenced by competing designs from Junkers and Fokker. The Dragon featured a conventional biplane layout, wood-and-fabric construction derived from techniques used on the DH.84 Dragon and aerodynamic refinements informed by trials against the Avro Anson. Power was provided by de Havilland Gipsy Six inverted inline engines mounted in stub nacelles, with fixed undercarriage similar to the Fairey Fox and a spacious cabin configured for passengers and mail for carriers like Imperial Airways and Qantas. Design certification involved testing with the Civil Aviation Authority (United Kingdom) predecessors and demonstrations to airline representatives from British European Airways and private operators.

Operational History

Commercial service began with operators including Imperial Airways, KLM, Swissair, and Malayan Airways on European feeder, colonial, and Far East routes, supplementing flying boats such as the Short S.8 Calcutta and landplanes like the Handley Page H.P.42. During the 1930s the Dragon performed mail, passenger and air ambulance duties for entities such as Royal Mail contracts and medical services in East Africa and India, often operating from aerodromes like Croydon Airport and Le Bourget Airport. With the outbreak of World War II, many Dragons were impressed into service with the Royal Air Force, Fleet Air Arm, and the Royal Australian Air Force for communications, transport, and evacuation operations supporting formations engaged in the Battle of France and later in the North African Campaign. Postwar civil use dwindled as operators replaced Dragons with modern types including the Douglas DC-3, de Havilland Dove, and Vickers Viking; however, some examples remained in charter and utility roles in regions such as Africa and South America into the 1950s.

Variants

The Dragon spawned multiple variants to suit airline and military needs, paralleling development patterns seen with the DH.84 Dragon and DH.89 Dragon Rapide. Notable production and conversion types included civil airliners fitted for 6–8 passengers, military communications conversions adopted by the RAF and RAAF, and bespoke mail carriers for operators like Imperial Airways and Aeroflot-era Soviet agreements. Export models were delivered to national carriers such as KLM, Swissair, and Qantas, while private conversions served air ambulances and photographic survey work for institutions like the Royal Geographical Society.

Operators

Civil operators encompassed Imperial Airways, KLM, Swissair, Qantas, Aeropostal Venezolana, Malayan Airways, and various African colonial carriers, as well as independent firms in United Kingdom, France, Netherlands, Australia, and Argentina. Military and governmental users included the Royal Air Force, Royal Australian Air Force, Royal Navy, Belgian Air Force, and colonial police units in territories administered by British Empire authorities. Corporate and private ownerships were held by companies and individuals associated with groups like Handley Page Transport and private flying clubs operating from airfields such as Heston Aerodrome.

Specifications

Typical specifications for production Dragons mirrored contemporary feeder airliners: twin de Havilland Gipsy Six engines, crew of two, seating for 6–8 passengers, wooden monocoque fuselage and fabric-covered wings, fixed tailwheel undercarriage, service ceiling and range suitable for short-haul European and colonial routes comparable to the Avro 618 Ten and Handley Page H.P.42. Performance and dimensions varied slightly by customer fitment and conversion for roles such as air ambulance or cargo, with operational characteristics evaluated alongside types like the Westland Wessex and Bristol F.2 Fighter in terms of handling and reliability for mixed passenger/mail schedules.

Accidents and Incidents

Accident records involved operational losses during peacetime commercial services and wartime utility duties, with notable occurrences investigated by authorities equivalent to the later Air Accidents Investigation Branch and contemporary press agencies such as The Times and Flight International. Incidents ranged from forced landings in remote regions like East Africa and Siberia to wartime losses during the Battle of Britain support operations and evacuation flights in the Battle of France, reflecting risks faced by many 1930s-era transports including the de Havilland Dragon Rapide and Handley Page H.P.42. Surviving examples are preserved in collections associated with institutions such as the Science Museum, London and aviation heritage groups at airfields like Duxford.

Category:De Havilland aircraft Category:1930s British airliners Category:Biplanes