Caudron G.IV

G.4
Caudron G-4 on reconnaissance near Verdun in 1917
Role	Bomber
Manufacturer	Caudron
Designer	Caudron Frères
First flight	1915
Primary users	French Air Force Corpo Aeronautico Militare RNAS Finnish Air Force
Number built	1,421
Developed from	Caudron G.3

The Caudron G.4 was a French biplane with twin engines, widely used during World War I as a bomber aircraft. It was designed by René and Gaston Caudron as an improvement over their single engined Caudron G.3. The aircraft employed wing warping for banking. The first G.4 was built in 1915, and it was manufactured in France, England and Italy.

The Caudron G.4 was used as a reconnaissance bomber into the heart of Germany. Later, when Germany developed a fighter force, the aircraft had to be used for night bombings.

The G.4 was in use in Belgium, France, Finland, Italy, the United Kingdom, and the United States.

While the Caudron G.3 was a reliable reconnaissance aircraft, it could not carry a useful bombload, and owing to its design, was difficult to fit with useful defensive armament. In order to solve these problems, the Caudron G4 was designed as a twin engined development of the G.3, first flying in March 1915. While the G.4 had a similar pod and boom layout to the G.3, it has two Le Rhône rotary or Anzani 10 radial engines mounted on struts between the wings instead of a single similar engine at the front of the crew nacelle, while wingspan was increased and the tailplane had four rudders instead of two. This allowed an observer/gunner position to be fitted in the nose of the nacelle, while the additional power allowed it to carry a bombload of 100 kg.

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Wikipedia