W.Green, G.Swanborough The Complete Book of Fighters
CAUDRON TYPE O France
An unequal-span single-bay single-seat biplane designed by Paul Deville in 1917 for the high-altitude fighter role, the Caudron Type O (all Caudron types were initially assigned letter-type designations in sequence) was originally flown with a 120 hp Le Rhone nine-cylinder air-cooled rotary although designed for the 150 hp Gnome Monosoupape 9N or 170 hp Le Rhone 9R rotaries. Examples fitted with the higher-powered engines were flown during the spring of 1918. Armament comprised either one or two 7,7-mm Vickers machine guns and the aerofoil employed for the wings was of special flat section and was expected to enable the fighter to reach altitudes of the order of 29,530 ft (9 000 m). Only prototypes were completed and the following data relate to the version powered by the 170 hp Le Rhone 9R rotary.
Max speed, 130 mph (210 km/h) at 13,125 ft (4 000 m).
Time to 13,125 ft (4 000 m), 10 min.
Empty weight, 882 lb (400 kg).
Loaded weight, 1,433 lb (650 kg).
Wing area, 182.99 sq ft (17,00 m2).