The Kharkiv KhAI-5, was a Soviet reconnaissance and light bomber aircraft, designed in the mid-1930s in the Kharkiv Aviation Institute, under the direction of Iosif Grigorevich Nyeman.
The Tupolev ANT-7, known by the VVS as the Tupolev R-6, was a reconnaissance aircraft and escort fighter of the Soviet Union. The R-6 traces its roots back to early 1928 when the Soviet Air Force needed a long-range multirole aircraft. The requirements were that it could be used for long-range transport, defensive patrolling, reconnaissance, light bombing and torpedo attack.
The Heinkel He 45 was a light bomber produced in Germany in the early 1930s, one of the first aircraft adopted by the newly formed Luftwaffe. Its appearance was that of a conventional biplane and included seating for pilot and gunner in tandem, open cockpits. Developed in parallel with the He 46, it appeared in 1931 as a general-purpose biplane and was employed mainly as a trainer, but was also used by the Luftwaffe for reconnaissance and light bombing duties. Production of this plane totalled 512 aircraft, including those built under licence by Gotha, Focke-Wulf, and BFW.
The Nakajima E4N was a Japanese shipboard reconnaissance aircraft of the 1930s. It was a two-seat, single-engine, equal-span biplane seaplane used primarily by the Imperial Japanese Navy.
The Beriev Be-2 was a two-seat reconnaissance seaplane built for the Soviet Navy shortly before World War II. It was designed to replace the Navy's obsolete license-produced Heinkel He 55 aircraft operating from warships and shore bases.
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 HE 12 was a pontoon-equipped mail plane built in Germany in 1929, designed to be launched by catapult from a liner at sea.
The Heinkel HD 17 was a military reconnaissance aircraft produced in Germany in the late 1920s.
The Heinkel HD 28 was a reconnaissance seaplane developed in Germany in the 1920s for export to Japan. It was a conventional single-bay biplane with equal-span, unstaggered wings and three cockpits in tandem. The fuselage was braced to both the upper and lower wings with a number of struts on its sides, in addition to the normal cabane struts. The rudder extended below the line of the lower fuselage, and there was a large ventral fin fitted. The rearmost cockpit incorporated a ring mount for a gunner.
The Heinkel HD 25 was a two-seat shipboard biplane reconnaissance floatplane developed in Germany during the 1920s for production in Japan.
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 37 was a fighter aircraft, designed in Germany in the late 1920s, but produced in the USSR for Soviet Air Force service. It was a compact, single-bay biplane with staggered wings of unequal span, braced by N-type interplane struts. The pilot sat in an open cockpit, and the main units of the tailskid undercarriage were linked by a cross-axle.
The Heinkel HD 39 was a special-purpose cargo aircraft developed in Germany in the 1920s to distribute the Berlin newspaper B.Z.. It was a conventional single-bay biplane with staggered wings of equal span, and a fuselage that nearly filled the interplane gap. The pilot sat in an open cockpit, and the undercarriage was of fixed, tailskid type with divided main units. The sole example of the type was built after Ernst Heinkel found out, by chance, that B.Z. required such an aircraft and had ordered two machines from Albatros. Heinkel convinced publisher Ullstein-Verlag to purchase a third aircraft from his firm.
The Aichi E3A was a reconnaissance seaplane developed in Germany as the Heinkel HD 56 to operate from warships of the Imperial Japanese Navy, which designated it the Type 90-1 Reconnaissance Seaplane. It was a conventional single-bay biplane with staggered wings braced by N-type interplane struts. The pilot and gunner sat in tandem, open cockpits.
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 Junkers J 21 was a reconnaissance aircraft designed in Germany in the early 1920s and produced in the Soviet Union at the Junkers plant at Fili for use by the Soviet Air Force.
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 Dewoitine HD.730 was a prototype French reconnaissance floatplane of the 1940s. It was a single-engined, low-wing monoplane that was designed as a catapult-launched reconnaissance aircraft to operate from warships of the French Navy. Two flew in 1940, and a third aircraft was built to a modified design in 1941, but no production followed.
The Heinkel HD 16 was a single-engine biplane torpedo aircraft developed by the German aviation company Ernst Heinkel Flugzeugwerke in the nineteen-twenties and produced under license by Svenska Aero in Stockholm, Sweden.
The Heinkel HD 15 was a single-engine biplane seaplane, developed by the German aeronautical company Heinkel Flugzeugwerke in the late 1920s and remained at the prototype stage.
