Following several production delays, the Caudron G.4 entered service with the French Aviation militarie in 1915 and was soon in use by the British, Russian and Italian air services. In 1916 and early 1917, the G.4 was extensively used by the Royal Flying Corps to bomb the German seaplane and Zeppelin bases in Belgium. Despite its lack of defensive armament, the twin-engine biplane quickly established a reputation as a reliable performer with a good rate of climb.

Country: France
Manufacturer: Caudron Frères
Type: Reconnaissance/Bomber
Entered Service: 1915
Number Built:
Engine(s): 2 Le Rhône rotaries, 9 cylinder, 80 hp
2 Anzani radials, 10 cylinder, 100 hp
Wing Span: 56 ft 5 in [17.2 m]
Length: 23 ft 6 in [7.16 m]
Height: 8 ft 5 in [2.6 m]
Empty Weight:
Gross Weight: 2,932 lb [1,330 kg]
Max Speed: 82 mph [132 km/h] at 6,560 ft [2,000 m]
Ceiling: 14,110 ft [4,300 m]
Endurance: 3½ hours
Crew: 2
Armament: 1 machine gun
249 lb [113 kg] of bombs