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The Heinkel He 111 was a German bomber aircraft designed by Siegfried and Walter Günter at Heinkel Flugzeugwerke in 1934. Through development it was described as a "wolf in sheep's clothing". Due to restrictions placed on Germany after the First World War prohibiting bombers, it masqueraded as a civil airliner, although from conception the design was intended to provide the nascent Luftwaffe with a fast medium bomber.
The Albatros L 59 was a single-seat German utility aircraft of the 1920s. It was a single-engine low-wing cantilever monoplane with large, spatted wide track undercarriage attached, unusually for the time not to the fuselage but to the wing roots. The whole aircraft was covered in 3-ply.
The Albatros L 68 Alauda was a two-seat German trainer aircraft of the 1920s. It was a single-engine biplane of conventional configuration that seated the pilot and instructor in tandem, open cockpits. The wings were of unequal span and had a pronounced stagger.
The Friedrichshafen G.II was a medium bomber aircraft that was designed and manufactured in Germany during World War I by Flugzeugbau Friedrichshafen. The plane was used by the Luftstreitkräfte for tactical and limited strategic bombing operations.
The Gotha G.IV was a heavy bomber used by the Luftstreitkräfte during World War I. It is the world's first large-size airplane in mass production.
The Focke-Wulf A 38 Möwe was an airliner, produced in Germany in the early 1930s. It was a final development of the family of designs that commenced with the A 17 in 1927. The A 38 used the same high-mounted, cantilever wing as the A 29, but mated this to an all-new fuselage design with enclosed seating for ten passengers and three crew. Unlike earlier members of the family, the flight deck was not joined to the cabin, separated now by a lavatory and baggage compartment. The main undercarriage was strengthened and the mainwheels fitted with brakes, while the tailskid was replaced with a tailwheel. All four A 38s were originally fitted with Siemens- or Gnome et Rhône-built Bristol Jupiter engines, but in April 1933, all aircraft were refitted with Siemens Sh 20 powerplants. By mid-1934, they had been relegated to training duties.
The Focke-Wulf S 2 was a trainer aircraft built in Germany in the late 1920s. It was a conventional parasol-wing monoplane with fixed tailskid undercarriage. The pilot and instructor sat side by side in an open cockpit. Only a single example was built.
The Heinkel HE 5, produced in Sweden as the Svenska S 5 and nicknamed the "Hansa", was a reconnaissance floatplane built during the 1920s. It was a further development of the HE 1, sharing its same basic configuration as a low-wing, strut-braced monoplane. The HE designation also refers to the monoplane construction, standing for Heinkel Eindecker.
The Heinkel HD 32 was a trainer developed in Germany in the 1920s, a derivative of the HD 21. Like that aircraft, it was a conventional, single-bay biplane, but had only two cockpits rather than the three that the HD 21 had. The other significant change was the use of a Siemens radial engine in place of the inline units that powered most of the HD 21 family.
The Heinkel HD 55 was a biplane flying boat produced in Germany in the early 1930s for use as a reconnaissance aircraft aboard Soviet warships. The design was based on the HD 15 mail plane of 1927 and was a conventional design for its time, with equal span, unstaggered wings, and an engine mounted tractor-wise on struts above the pilot's open cockpit. A second open cockpit was added on the rear fuselage to provide a position for a tail gunner.
The Junkers S 36 was a twin-engine mail plane developed in Germany in the late 1920s that was further developed in Sweden as a multi-role military aircraft, albeit unsuccessfully, under the designation K 37. The design itself was a low-wing cantilever monoplane of largely conventional design, featuring twin tails and fixed, tailwheel undercarriage. Construction was metal throughout and skinned, in typical Junkers fashion, with corrugated duralumin. The engines were mounted in nacelles on the wings, and the crew was accommodated in three open cockpits, including one in the very nose of the aircraft.
The Junkers A 32 was a mail plane built in prototype form in Germany in the late 1920s, and later developed as a prototype reconnaissance-bomber under the designation K 39. The design was a conventional low-wing cantilever monoplane with fixed tailskid undercarriage. Construction was metal throughout, with corrugated duralumin skin. Three open cockpits were provided in tandem; the third seat intended from the outset to accommodate a tail gunner for a military version of the aircraft. In fact, the militarised version developed in Sweden by AB Flygindustri featured a fourth crew position as well, for a bombardier. This version featured twin machine guns built into the engine cowling, and a trainable machine gun for the tail gunner.
Kochyerigin DI-6 was a two-seat fighter biplane produced in the Soviet Union in the 1930s.
The Lioré et Olivier LeO 12 was a night bomber built in France in 1924.
The Aichi AB-4 was a Japanese flying boat of the 1930s. A single engined biplane, the AB-4 was intended to carry out night reconnaissance for the Imperial Japanese Navy. Six were built and accepted into service as the Experimental 6-Shi Night Reconnaissance Flying boat, three of which were converted to civil transports.
The BFW M.22 was a twin-engined medium bomber, designed by Willy Messerschmitt for the German Ministry of Transport. It was one of only two biplanes Messerschmitt designed, both unsuccessful.
The Albatros C.II was a 1910s German military pusher reconnaissance biplane designed and built by Albatros Flugzeugwerke. Only one aircraft was built and the type did not enter production.
The Focke-Wulf GL 18 was a 1920s German light transport monoplane, designed and built by Focke-Wulf.
The SAB AB-20 was a large four engine twin boom French bomber built in the early 1930s as a development of the Dyle et Bacalan DB-70 airliner. It featured a lifting body of thick airfoil section between the inner engines. It was later modified for the attack role; a second aircraft, the AB-21, had different engines and cleaner aerodynamics but no more were built.
The Siemens-Schuckert L.I was a large, three-engined biplane bomber aircraft, built in Germany towards the end of World War I. It was a twin boom design, strongly influenced by the successful Caproni Ca.3. Three were built but not used operationally.
References
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 501.
- Nowarra, Heinz (1983). Die deutsche Luftrüstung 1933-1945. Bonn: Bernard and Graefe. pp. Teil 2, p.173.