The Albatros L 100 was a light aircraft built in Germany to compete in the Europarundflug air-race. It was a low-wing braced monoplane of conventional taildragger configuration.
The DFS 331 was a transport glider prototype developed in a collaboration between DFS and Gotha. It was a twenty-seat troop transport designed by Hans Jacobs, who had previously produced the successful, nine seat DFS 230.
Focke-Wulf Project VIII was a design study for a turboprop-powered fighter-bomber, undertaken in Germany during World War II.
The Fokker D.IV was a German fighter biplane of World War I, a development of the D.I.
The Weserflug We 271 was a German flying boat active during World War II.
The Focke-Wulf Fw 43 Falke - known internally to Focke-Wulf as the A 43 - was a light utility aircraft developed in Germany in 1932. The last project undertaken by the company under the technical direction of Henrich Focke, it was a high-wing strut-braced monoplane of conventional design, with fixed tailwheel undercarriage. The pilot and two passengers sat in a fully enclosed cabin. Only a single example was built.
The Gotha Go 146 was a twin-engine utility aircraft developed in Germany in the mid-1930s. It was a conventional low-wing cantilever monoplane with tailwheel undercarriage, the main units of which retracted into the engine nacelles on the wings. It was offered to the Luftwaffe as a high-speed courier aircraft, but the Siebel Fh 104 was selected instead. With Gotha unable to attract other customers, no serious production was undertaken and a small number of prototypes were the only examples built.
The Gotha Go 149 was a military aircraft developed in Germany in the mid-1930s for training fighter pilots. It was a conventional low-wing cantilever monoplane with tailwheel undercarriage, the main units of which retracted inwards. The wing was wooden, while the monocoque fuselage was metal. Two prototypes were constructed, and an armed version was also proposed as a light home-defence fighter (Heimatschutzjäger) armed with two 7.92 mm (.312 in) MG 17 machine guns, but the Luftwaffe did not purchase either version of the design, and no further examples were built.
The Heinkel He 62 was a reconnaissance seaplane designed in Germany in the early 1930s. It was a conventional, single-bay biplane with unstaggered wings of equal span. The pilot and gunner sat in tandem, open cockpits. A few aircraft were supplied to Japan, where Aichi built a version as the AB-5, and used it as the basis for the AB-6, but no series production took place. The AB-5 used a locally produced Nakajima Kotobuki in place of the Siemens engine fitted to the German-built aircraft.
The Heinkel He 63 was a trainer biplane built in Germany in the early 1930s. It was a largely conventional design with single-bay wings, fixed tailskid undercarriage, and two open cockpits in tandem. An unusual feature of the design was the highly swept, arrow-shaped upper wing, braced to the lower wing by N-type struts. Prototypes of the He 63 were built in both landplane and seaplane form, but no production ensued.
The Hopfner HA-11/33 was an amphibious flying boat built in Austria in 1933 to a specification by the Dr. Oetker company. The result was a conventional, high-wing cantilever monoplane with a stepped flying boat hull and pontoons on struts under the wings at mid-span. The cabin was fully enclosed, and the twin engines were mounted tractor-fashion on struts above the wing.
The Klemm Kl 31 was a touring aircraft, developed in Germany in the early 1930s. It was a conventional, low-wing cantilever monoplane with four seats in an enclosed cabin. The fixed, tailskid undercarriage had divided mainwheel units. The fuselage was built from welded steel tube, while the wings were wooden. Some Kl 31s saw service with the Luftwaffe as training and liaison aircraft.
The Klemm Kl 105 was a two-seat sport aircraft developed in Germany in 1938. It was a low-wing cantilever monoplane of conventional design with fixed, tailskid undercarriage, and side-by-side seating for two within an enclosed cockpit. Construction throughout was of wood, with the fuselage built using a new semi-monocoque technique which Klemm patented. Plans to produce the design in series were abandoned with the outbreak of the Second World War.
The Fieseler Fi 158 was a civilian research aircraft designed and built in Germany from 1938.
The Arado Ar 77 was a German twin-engined monoplane, designed as an advanced training aircraft from 1934.
The Fieseler Fi 253 Spatz,, was a light civilian aircraft, manufactured by the German company Fieseler in Nazi Germany. Only six units were produced, however, due to the Second World War.
The Fieseler Fi 99 Jungtiger was a German sports aircraft prototype, produced by Fieseler company. The aircraft was a low-wing two-seat aircraft with an enclosed cabin. It was powered by a Hirth HM 506A engine, producing 160 hp (119 kW).
The Albatros L102 / Albatros Al 102, was a German trainer aircraft of the 1930s. It was a parasol-wing landplane, seating the student pilot and instructor in separate, open cockpits. A biplane floatplane version was also built as the Al 102W, with strut-braced lower wings.
The Albatros L 103 / Albatros Al 103 was a German experimental aircraft of the 1930s. It was a parasol-wing landplane of conventional configuration, seating the pilot and flight test observer in separate, open cockpits. The Al 103 was used to test variations in sweepback, dihedral and tailplane area.
The Gotha Go 241 was a low-wing twin-engined four-seat transport aircraft manufactured by Gothaer Waggonfabrik in the early 1940s and intended for the general aviation market.
