Curtiss O-40 Raven

O-40 Raven
The original prototype YO-40
General information
TypeObservation aircraft
National originUnited States of America
ManufacturerCurtiss-Wright
Primary userUnited States Army Air Corps
Number built5
History
Introduction date1933
First flight1932
Retired1939

The Curtiss O-40 Raven was an American observation aircraft of the 1930s which was built and used in small numbers. A single example of the YO-40, a single-engined Sesquiplane with a retractable undercarriage was built, followed by four examples of a modified monoplane version, the O-40B, which remained in use until 1939.