Keystone XLB-3
| XLB-3 | |
|---|---|
| XLB-3A | |
| General information | |
| Type | Light bomber |
| National origin | United States |
| Manufacturer | Keystone Aircraft |
| Primary user | United States Army Air Corps |
| Number built | 1 |
| History | |
| First flight | ca. December 1927 |
The Keystone XLB-3 (originally built under the Huff-Daland name) was a prototype bomber biplane developed in the United States in the late 1920s. It was a twin-engine development of the single-engine LB-1, brought about by a change in policy by the United States Army Air Corps (USAAC).