The Arado Ar 80 was a pre-World War II fighter aircraft, designed by Arado Flugzeugwerke to compete for the Luftwaffe's first major fighter contract. The Ar 80 was uninspiring in terms of performance and also suffered a number of failures. The contest was eventually won by the Messerschmitt Bf 109, and the Ar 80 prototypes ended their days as test aircraft.
The Arado Ar 196 was a shipboard reconnaissance low-wing monoplane aircraft built by the German firm of Arado starting in 1936. The next year it was selected as the winner of a design contest and became the standard aircraft of the Kriegsmarine throughout World War II.
The Arado Ar 68 was a German single-seat biplane fighter developed in the mid-1930s. It was among the first fighters produced when Germany abandoned the restrictions of the Treaty of Versailles and began rearming.
The Heinkel He 51 was a German single-seat biplane which was produced in a number of different versions. It was initially developed as a fighter; a seaplane variant and a ground-attack version were also developed. It was a development of the earlier He 49.
The Blériot SPAD S.510 was the last French biplane fighter to be produced.
The Heinkel He 114 was a sesquiwing reconnaissance seaplane produced for the Kriegsmarine in the 1930s for use from warships. It replaced the company's He 60, but did not remain in service long before being replaced in turn by the Arado Ar 196 as Germany's standard observation seaplane.
The Arado Ar 65 was the single-seat biplane fighter successor to the Ar 64. Both looked very similar. The only major difference was the use of a 12-cylinder inline engine versus the Ar 64's radial. The wingspan was also increased.
The Arado Ar 66 was a German single-engined, two-seat training biplane, developed in 1933. It was also used for night ground-attack missions on the Eastern Front. It was engineer Walter Rethel's last design in collaboration with Arado, before Walter Blume, assigned as Arado Flugzeugwerke's chief design engineer in 1933, took over the bulk of the Arado firm's design duties.
The Arado Ar 197 was a German World War II-era biplane, designed for naval operations for the never-completed German aircraft carrier Graf Zeppelin. Only a few prototypes were built; the project was abandoned in favour of the Messerschmitt Bf 109T and Me 155.
The Focke-Wulf Fw 56 Stösser was a single-engine, parasol monoplane advanced trainer, built in the 1930s in Germany.
The Arado Ar 76 was a German aircraft of the 1930s, designed as a light fighter with a secondary role as an advanced trainer in mind.
The Arado S I was a biplane trainer built in Germany in 1925. The first of three prototypes was powered by a Bristol Lucifer radial engine, while the other two Arado S.Ia aircraft were fitted with the Siemens-Halske Sh 12. The Siemens-Halske Sh 11 powered the Arado S III, a virtually identical aircraft of which only a single prototype was constructed and sold to Turkey.
The Arado SD II was a fighter biplane developed in Germany in the 1920s. Like the preceding SD I, it was intended to equip the clandestine air force that Germany was assembling at Lipetsk and was hoped to overcome the shortcomings of that type. Although it shared the same basic configuration, the SD II was an all-new design. A considerably larger and heavier aircraft, it had wings of less stagger, braced with conventional wires. The landing gear and tailplane were of far stronger construction.
The Heinkel HD 42 50, later designated the Heinkel He 42 was a German two-seat biplane seaplane originally designed for the Deutsche Verkehrsfliegerschule, and later built for the German Luftwaffe. The aircraft was used until the end of World War II as a trainer for maritime pilots.
The Heinkel He 74 was a light fighter aircraft developed in Germany in the early 1930s. It was a conventional, single-bay biplane with staggered, unequal-span wings braced with an I-type interplane strut. The pilot sat in an open cockpit, and the undercarriage was of the fixed, tailskid type.
The Heinkel HD 26 was a reconnaissance seaplane developed in Germany during the 1920s for production in Japan. It was intended as a smaller, single-seat counterpart to the HD 25, to provide a spotter aircraft for warships, to take off from a short ramp. The HD 26 was a conventional biplane with staggered wings, twin float undercarriage, and an open cockpit.
The Heinkel HD 38 was a fighter aircraft developed in Germany in the late 1920s. It was a compact, single-bay biplane with staggered wings of unequal span, braced with N-type interplane struts, a refined version of the HD 37 that had been evaluated and rejected by the Reichswehr for use at the secret training facility at Lipetsk. The HD 38 was designed in the hope of capturing a different niche - that of a seaplane fighter, and was designed with a twin pontoon undercarriage that could be quickly removed and replaced with wheels. It was accepted in this role, but did not serve in it for long before being relegated to general training duties. Even then, it was not long before Germany abandoned the Lipetsk base to the Soviet Union.
The Heinkel Doppeldecker 43 was a prototype German fighter aircraft of the 1930s. A single-engined, single-seat biplane, the HD 43 was designed to meet a secret German Reichswehr requirement for a single-seat fighter. It had two-bay wooden wings with a steel-tube fuselage, and was powered by a 750 hp (600 kW) BMW VI engine. The single prototype flew in 1931.
The Focke-Wulf Fw 62 was a reconnaissance floatplane, designed and built by Focke-Wulf for use by Nazi Germany's Kriegsmarine. Only four were built.
The Arado Ar 81 was a German prototype dive bomber. Because the Reich Air Ministry decided to purchase the competing Junkers Ju 87, only three prototypes of the Ar 81 were completed.
