| XB-31 | |
|---|---|
| General information | |
| Type | Heavy bomber |
| Manufacturer | Douglas Aircraft |
| Status | Design only |
| Primary user | United States Army Air Forces |
| Number built | 0 |
The Douglas XB-31 (Douglas Model 332) was the design submitted by Douglas after the request by the United States Army Air Forces for a very heavy bomber aircraft, the same request that led to the Boeing B-29 Superfortress, Lockheed XB-30, and Consolidated B-32 Dominator.