| Manufactor Serial Number | Type | Serial / Registration Number | Owner | Fate |
| G & A (Firestone) XR-9B | 46-00001 | United States Air Force (Army Inc) | ||
| G & A (Firestone) XR-14 | 46-00527 | United States Air Force (Army Inc) | Not Built | |
| G & A (Firestone) XR-14 | 46-00528 | United States Air Force (Army Inc) | Not Built | |
| G & A (Firestone) XR-14 | 46-00529 | United States Air Force (Army Inc) | Not Built | |