Related Research Articles
The Aichi AB-1 was a result of a 1926 government call for a small, Japanese-built, civil transport biplane able to operate from land or water. It won the contest in both roles, but did not reach production as airlines moved from biplanes to monoplanes. Nonetheless, it remained in commercial use well into the 1930s.
The Surrey Flying Services AL.1 was a single-engined side-by-side two-seat training biplane, built at a UK flying club in 1929. Only one was built, but it was flying until the outbreak of war in 1939 and remains in storage.
The Wendt W-2 Swift was a two-seat, single-engine, braced high-wing monoplane built in the United States just before World War II. Only one was built.
The Tachihi R-53 was amongst the first aircraft built in Japan after the relaxation of the ban imposed at the end of World War II. It is a parasol-wing, two seat, training aircraft powered by a British engine. Only one was produced.
The Koolhoven F.K.44 was a two-seat, single engine sport monoplane designed and built in the Netherlands in the early 1930s. It was built to order, but only one was completed.
The Hanriot HD.15 was a French two-seat fighter aircraft fitted with a supercharger for good high altitude performance, built in the 1920s. Three were ordered by Japan but lost at sea during delivery.
The Caudron C.74 was a ten-seat, four engine passenger biplane built in France in 1922. It showed promise but the sole prototype crashed fatally in a competition and no more were completed.
The S.A.B.C.A. S.XII or S.A.B.C.A S.12 was a four-passenger light transport aircraft with three engines and a high wing, built in Belgium in the early 1930s.
The Albert A-10 was a four-seat French transport aircraft which could be rapidly converted into an air ambulance. Two or three examples were built between 1929 and 1932, using at least two different engines, but neither variant reached production.
The Zalewski W.Z.XII Kogutek II was a Polish single-seat sports aircraft. Construction was started in 1932 but not completed and flown until 1937. Only one was built.
The LKL IV and LKL V were a pair of very similar Polish parasol wing two-seaters, built in the early 1930s. They differed primarily in their engines.
The Gabriel Śląsk (Silesia) was a Polish light aircraft designed and built by an amateur in the mid-1930s. After two flights the Polish authorities banned further development.
The Ogden Osprey was a three engine, high wing monoplane airliner which seated six. Designed in the United States and first flown in the spring of 1930 or earlier, six were built and some used commercially before Ogden Aeronautical ceased trading in the Great Depression.
The Ishikawajima R-3 was a Japanese training biplane seating two in tandem. Two were built, one of which made a tour of Western and Central Europe in 1932.
The Tokyo Koku Aiba-Tsubame or Tokyo Aviation Aiba-Swallow was a 1930s Japanese civil transport with seats for three passengers. It was intended to be cheap to produce so, although its fuselage was a new design, its wings and undercarriage were those of another Japanese aircraft. Two were built and flew taxi services and joyrides.
The Tokyo Koku Aiba 11 was a 1940s Japanese civil transport aircraft derived from the Tokyo Koku Aiba 10 trainer. Its cabin accommodated three passengers on taxi or sight-seeing flights. Though well-regarded, developing military demands prevented its production.
The Kawanishi K-3 was a Japanese, fast, multi-purpose civil transport aircraft from the early 1920s. Despite its good performance it was eclipsed by the release of Army surplus machines and only one was built.
The Itoh Emi 30 was a small, single-engined, sports biplane built in Japan in 1922. Though it attracted attention by being the smallest Japanese aircraft of its time, the sole example was mostly used as an aerobatics trainer.
The Fukunaga Tenryu 10 was the largest Japanese civil passenger aircraft when it first flew in 1922. Its passenger cabin seated four.
The Mulot AM-20 was a Belgian single seat aerobatic trainer displayed at the 1937 Brussels Salon. Two were built.