The Macchi M.C. 72 is an experimental seaplane designed and built by the Italian aircraft company Macchi Aeronautica. The M.C. 72 held the world speed record for all aircraft for five years. In 1933 and 1934 it set world speed records for piston engine-powered seaplanes; the latter still stands.
The Macchi M.39 was a racing seaplane designed and built by the Italian aircraft company Aeronautica Macchi in 1925–26. An M.39 piloted by Major Mario de Bernardi (1893–1959) won the 1926 Schneider Trophy, and the type also set world speed records that year.
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 Curtiss CR was a racing aircraft designed for the United States Navy in 1921 by Curtiss. It was a conventional single-seater biplane with a monocoque fuselage and staggered single-bay wings of equal span braced with N-struts. Two essentially similar landplane versions were built as the CR-1 and CR-2, which were both eventually converted to seaplanes as the CR-3 in 1923 and CR-4 in 1924. A refined version was developed for the US Army Air Service under the designation R-6. These latter two aircraft featured refined aerodynamics included surface-mounted radiators.
The Blackburn T.R.1 Sprat was a British single-engine two-seat biplane trainer, built in 1926 for advanced training, deck-landing and seaplane experience. Just one was built.
The Fairey Fleetwing was a British two-seat, single-engine biplane designed to an Air Ministry contract for carrier-based reconnaissance operations in the late 1920s. Only one was built.
The Parnall Puffin was an experimental amphibious fighter-reconnaissance biplane produced in the United Kingdom just after World War I. It had several unusual features, principally a single central float and an inverted vertical stabilizer and rudder, and showed promise, but at that time no new aircraft were being ordered in numbers for the RAF and only the three Puffins of the initial order were built.
The Parnall Perch was a single-engined, side-by-side-seat aircraft designed in the UK to meet an Air Ministry specification for a general-purpose trainer. No contract on this specification were awarded and only one Perch was built.
The Parnall Pike was a 2/3-seat biplane reconnaissance aircraft, capable of operating off carrier decks or from water, built to an Air Ministry specification in 1927. Only one was constructed.
The Short Gurnard was a single-engined two-seat biplane naval fighter, built in the United Kingdom to an Air Ministry specification in 1929. It failed to win production orders and only two flew.
The Blackburn G.P seaplane,, was a British twin-engine reconnaissance torpedo floatplane of the First World War, built by the Blackburn Aeroplane and Motor Co Ltd.
The Caproni Ca.124 was a 1930s single-engine Italian reconnaissance and bomber seaplane.
P.Z.L. P.8 was a fighter designed by Ing. Zygmunt Puławski and constructed by P.Z.L. from 1930.
The LFG V 60 was a small, single engine, tandem seat floatplane training aircraft, designed and built in Germany in the mid-1920s. About five were constructed.
The Villiers IV or Villiers 4 was a French two seat naval floatplane. Two were built, the first with twin floats and the second with one. The first was short-lived but the second set several world and national records; it later became the Villiers XI.
The Heinkel HD 20 was a twin engine, three seat German biplane built in 1926 for civil survey work.
The Rohrbach Ro VII Robbe was an all-metal, twin engine flying boat built in Germany in the 1920s. It could be adapted to commercial or military rôles.
The Albatros L 83 Adler was a small, fast transport aircraft for passengers, mail or other cargo, flown in Germany in 1931. Two were built.
The NAS Air King was a US light biplane transport aircraft designed in 1926 to carry three passengers in two open cockpits. Only one was built but in 1928 it was revised to carry two passengers and was more successful, with over twenty produced.
The Kawanishi K-6 was a passenger-carrying biplane floatplane, built in Japan in the 1920s. The sole example took part in an around Japan flight then flew as a transport with Japan Aviation.
