The Aviatik (Berg) D.I, was a single-engine, single-seater biplane fighter that was developed and manufactured by the Austro-Hungarian branch of German aircraft company Aviatik. It was also known as Berg D.I or the Berg Fighter, because it was designed by Dipl. Ing. Julius von Berg, and to distinguish it from the D.I fighter built by the parent Aviatik firm in Germany.
The Friedrichshafen G.I was a prototype heavy bomber aircraft that was built in Germany by Flugzeugbau Friedrichshafen in 1915. It was Karl Gehlen's first design for the company, and although it was not produced in quantity, it provided the foundation for the later, highly successful bombers culminating in the G.III.
The Austro-Daimler 6 was a series of Austrian six-cylinder water-cooled inline SOHC aero engines first produced in 1910 by the Austro-Daimler company.
The Friedrichshafen FF.34 was a German biplane floatplane of the 1910s produced by Flugzeugbau Friedrichshafen.
The Bristol Gordon England biplanes were a series of early British military biplane aircraft designed by Gordon England for the Bristol Aeroplane Company that first flew in 1912. Designed for easy ground transport, the aircraft could be quickly disassembled.
The Hansa-Brandenburg C.I, also known as Type LDD, was a 2-seater armed single-engine reconnaissance biplane designed by Ernst Heinkel, who worked at that time for the parent company in Germany. The C.I had similarities with the earlier B.I, including inward-sloping interplane bracing struts. Like other early-war Austro-Hungarian reconnaissance aircraft, such as C-types of Lloyd or Lohner, the Type LDD had a communal cockpit for its crew.
The Hansa-Brandenburg D.I, also known as the KD was a German fighter aircraft of World War I. Despite poor handling characteristics it was put into service by Austria-Hungary, where some aircraft served until the end of the war.
The Hansa-Brandenburg G.I was a bomber aircraft used to equip the Austro-Hungarian aviation corps in World War I. It was a mostly conventional large, three-bay biplane with staggered wings of slightly unequal span. The pilot and bombardier sat in a large open cockpit at the nose of the aircraft, with a second open cockpit for a gunner in a dorsal position behind the wings. An unusual feature was the placement of the twin tractor engines. While the normal practice of the day was to mount these to the wings, either directly or on struts, the G.I had the engines mounted to the sides of the fuselage on lattices of steel struts. This arrangement added considerable weight to the aircraft and transmitted a lot of vibration to the airframe.
The Knoller C.II was a reconnaissance aircraft built in Austria-Hungary during World War I for use by the Austro-Hungarian army. It was a conventional biplane design with staggered wings, and seated the pilot and observer in tandem in an open cockpit. Like Knoller's preceding C.I design, the upper wing was swept back, but not as far as it had been on the earlier aircraft. The structure was wooden throughout, with the wings skinned in fabric and the fuselage in plywood. The interplane struts were made of steel and arranged in a warren truss configuration.
The Lohner B.I was a military reconnaissance aircraft produced in Austria-Hungary during World War I. As Lohner strove to perfect the design, a variety of increasingly powerful engines were fitted, reflected in a range of military designations from B.II through to B.VI until the definitive B.VII was finally produced. This last version was also produced in an armed variant, designated the C.I.
The unarmed Lohner B.VII and its armed derivative the C.I were military reconnaissance aircraft produced in Austria-Hungary during World War I. They were the ultimate developments in a family of aircraft that had begun with the B.I prior to the outbreak of war, and were the first members of that family that proved suitable for front-line service during the conflict. Like their predecessors, the B.VII and C.I were conventional biplanes with characteristic swept-back wings.
The Blackburn Triplane was a single-engine pusher single-seater, designed specifically to attack Zeppelins. It flew in 1917, but was not successful.
The Handley Page Type B was an unusual single-engined pusher biplane built by Handley Page at the commission of a Liverpool patent agent. Damaged before its first flight, Handley Page disowned it, but it was rebuilt and flew for a time in 1910 as the Planes Limited Biplane.
The Latécoère 4 was a three-engined, 15-passenger biplane built in France in the early 1920s. It proved difficult to fly and was discontinued, though a second machine was completed as the Latécoère 5 bomber.
The Sopwith Admiralty Types 137 and 138 were a pair of single-engine, two-seat naval biplane floatplanes, built to a British Admiralty order in 1914. They were similar in design, but having a more powerful engine the Type 138 was the larger and heavier. They were used in early torpedo dropping experiments in 1914.
The Grahame-White Type VI was an early British military aircraft manufactured by the Grahame-White Aviation Company. Only one was built but after an abortive flight development was abandoned.
The Pfalz D.XV was a German single seat fighter aircraft which was approved for production right at the end of World War I, too late to enter service.
The LFG Roland D.XV was a World War I German single seat fighter aircraft, ordered as a test-bed for engine comparisons. It was distinguished from earlier Roland biplane designs by the elimination of flying wires. Two later aircraft, also called LFG Roland D.XV, were completely different designs with slab sided fuselages.
The Gribovsky G-25 was a Russian tandem seat biplane basic trainer built in the late 1930s. It was hoped to minimize unit costs by using a modified automobile engine but the G-25 did not reach production.
The Lohner Type AA were a series of prototype fighters built during World War I. The program would eventually be cancelled due to inherent instability concerns of the design.
