Designed in 1916 by Geoffrey de Havilland, the D.H.4 was the only British design manufactured by the Americans. It was easily identified by its rectangular fuselage and deep frontal radiator. Versatile, heavily armed and equipped with a powerful twelve cylinder engine, this biplane daylight bomber was fast. Sometimes called the "Flaming Coffin," its huge fuel tank was dangerously positioned between the pilot and observer, hindering communication. Produced in vast numbers, many D.H.4s were modified for civilian air service after the war.

Country: Great Britain
Manufacturer: Aircraft Manufacturing Co. Ltd.
Type: Bomber
Entered Service: March 1917
Number Built: 6295, of which 4846 were built in the United States
Engine(s): Rolls-Royce Eagle VII, 12 cylinder, liquid cooled inline V, 375 hp [275 kW]
Liberty 12, 12 cylinder, liquid cooled, inline V, 395 to 421 hp (USA)
Wing Span: 42 ft 4½ in [12.92 m]
Length: 30 ft 8 in [9.35 m]
Height: 11 ft [3.35 m]
Empty Weight:
Gross Weight: 3,472 lb [1,575 kg]
Max Speed: 143 mph [230 km/h] at sea level
Ceiling: 23,500 ft [7,163 m]
Endurance: 6 hr 45 min
Crew: 2
Armament: 2-4 machine guns
460 lb [208.7 kg] of bombs