Avro 539

The Avro 504 was a First World War biplane aircraft made by the Avro aircraft company and under licence by others. Production during the war totalled 8,970 and continued for almost 20 years, making it the most-produced aircraft of any kind that served in any military capacity during the First World War. More than 10,000 were built from 1913 until production ended in 1932.

The Fairey Aviation Company Fairey III was a family of British reconnaissance biplanes that enjoyed a very long production and service history in both landplane and seaplane variants. First flying on 14 September 1917, examples were still in use during the Second World War.

The Airco DH.11 Oxford was a British twin-engined biplane bomber which was designed to replace the earlier Airco DH.10 Amiens. It was designed to use the unsuccessful ABC Dragonfly engine and was abandoned after the first prototype was built.

The Avro Type 584 Avocet was a British single-engined naval fighter prototype, designed and built by Avro. While the Avocet was not built in numbers, one of the prototypes was used as a seaplane trainer for the Royal Air Force's (RAF) High Speed Flight.

The Avro Type D was an aircraft built in 1911 by the pioneer British aircraft designer A.V. Roe. Roe had previously built and flown several aircraft at Brooklands, most being tractor layout triplanes. The Type D was his first biplane.

The Avro Type E, Type 500, and Type 502 made up a family of early British military aircraft, regarded by Alliott Verdon Roe as his firm's first truly successful design. It was a forerunner of the Avro 504, one of the outstanding aircraft of the First World War.

The Bristol Ten-seater and Bristol Brandon were British single-engine biplane transport aircraft built by the Bristol Aeroplane Company in the early 1920s. Only three were built, two of which were used as civil transports and one of which served with the Royal Air Force.

The Supermarine Sea Lion II was a British racing flying boat built by the Supermarine Aviation Works. Designed by Reginald Mitchell, it was a modification of Supermarine's Sea King II. Sea Lion II was powered by a 450 hp (340 kW) Napier Lion engine.

The Supermarine Sea Lion I was a British racing flying boat designed and built by Supermarine for the Schneider Trophy contest at Bournemouth, England, in September 1919. It was based on a version of the Supermarine Baby, the first single-seat flying boat fighter aircraft to be designed and built in the United Kingdom, that first flew in February 1918.

The Supermarine Sea King was a British single-seat amphibious biplane fighter designed by Supermarine in 1919. Developed from the Supermarine Baby and the Supermarine Sea Lion I, the Sea King was a single seater biplane powered by a pusher 160 horsepower (120 kW) Beardmore engine. It first flew in early 1920 and was exhibited by Supermarine at the 1920 Olympia Show in London. The company released drawings of the aircraft's design prior to the show; what it exhibited was probably a modified Supermarine Baby.

The Fokker F.II was the first of a long series of commercial aircraft from the Fokker Aircraft Company, flying in 1919. In a biplane age, it presented a distinct clean, high-wing monoplane style that sold successfully across Europe and North America during the development of commercial passenger-carrying aviation.

The Gloster III was a British racing floatplane of the 1920s intended to compete for the Schneider Trophy air race. A single-engined, single-seat biplane, two were built, with one finishing second in the 1925 race.

The Avro 533 Manchester was a First World War-era twin-engine biplane photo-reconnaissance and bomber aircraft designed and manufactured by Avro.

The Southern Martlet was a single-engined, single-seat biplane sports aircraft. Six were built, including the rather different and unsuccessful Metal Martlet.

The Gloster IV was a British racing floatplane of the 1920s. A single-engined biplane, the Gloster IV was a development of the earlier Gloster III intended to compete in the 1927 Schneider Trophy race. One aircraft competed in the race, but retired part way through. The three aircraft built continued to be used as trainers by the High Speed Flight for several years.

The Short Silver Streak was the first British all-metal aircraft. It was designed and built by Short Brothers at Rochester, Kent, England. Although Flight magazine claimed that it was the first instance of stressed skin construction in the world, it was preceded by a number of Dornier designs, including the Dornier-Zeppelin D.I, which was ordered into production.

The Bristol Seely was entered into an Air Ministry competition for safe civil aeroplanes held in 1920. It was a single-engine biplane with accommodation for one passenger. After the competition, the single Seely was used as a testbed for the Bristol Jupiter engine development programme.