Curtiss O-40 Raven

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.

O-40 Raven
The original prototype YO-40
Role Observation aircraft
National origin United States of America
Manufacturer Curtiss-Wright
First flight 1932
Introduction 1933
Retired 1939
Primary user United States Army Air Corps
Number built 5
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