Designed as a replacement for the DH-4 and DH-9. Three were built and two were used for trials at A&AEE. Never ordered into production. Photo from: Imperial War Museums

Avro 504K trainers at the Soekasmikin (Sukasmikin) airfield, east of Bandung. The colonial army air arm closed the boggy flying field in 1923, moving to Andir. Photo from: Leiden University Libraries

The photo was made at the OPAS base, but it is not confirmed if that was at the Bigwood Lake location, it is possible that it was at another location in Sioux Lookout. G-CYAH was struck off charge in November 1924. Photo from: Canada Science and Technology Museum

Photo from: Library and Archives Canada

The Danish airline DDL hired four German Fokker-Grulich F.IIIs in its early days. D-353 was pictured by a KLM photographer over the Amstel river, just south of Amsterdam. The same aircraft made an emergency landing very close to here at Abcoude on 15 August 1924, then in Deutscher Aero Lloyd service. Photo from: Noord-Hollands Archief

Gloucestershire Aircraft changed its name to the simpler Gloster in 1926. The Sparrowhawk was a development of the Nieuport Nighthawk for the Japanese Navy. The Mk.I was a single seat fighter, the Mk.II a trainer, the Mk.III a carrier aircraft. Japan acquired 90 aircraft, some built locally. Photo from: Civil Aviation Historical Society, Melbourne, Australia

Became G-AUBF, one of about 50 aircraft placed on the British-Australian G-AU** register on its first day, June 28, 1921. It served with Qantas until 1926 when its Certificate of Airworthiness expired. From its base in Longreach, C6986 undertook joy flights at many towns in western Queensland as the fledgling airline prepared to start regular services. Photo from: Hudson Fysh Collection/State Library of New South Wales

One of series of classic portraits of the new F-2B MkII J6586. The F-2B MkII was intended for use in desert and tropic parts of the British Empire and was fitted with an improved cooling system. Photo from: State Library of Victoria

Operated by Royal Aircraft Establishment. Two Sinaia twin-engined day bombers were ordered, but this was the only example to be completed and flown. Note the very unusual elevated positions behind the wings for the two side gunners which enabled them to fire defensively over a wide radius. Tested at Farnborough but broken up in the mid 1920s. Obtained from AW Aircraft 60 years ago.

World War I DH-6 basic trainer converted for civil use for pleasure flying etc. Ex RAF C6889. At Alexandra Park airfield, operational 1918-1924. Image obtained 60 years ago.