Boeing XP-8
| XP-8 | |
|---|---|
|   Boeing XP-8 (U.S. Air Force photo)  | |
| General information | |
| Type | Fighter | 
| Manufacturer | Boeing | 
| Primary user | United States Army Air Corps | 
| Number built | 1 | 
| History | |
| Introduction date | Cancelled | 
| First flight | January 1928 | 
| Developed from | PW-9 | 
| Variants | Boeing F2B | 
The Boeing XP-8 (Boeing Model 66) was a prototype American biplane fighter of the 1920s, notable for its unusual design incorporating the engine radiator into the lower wing.