| Engine name | manufacturer | configuration | cylinders |
|---|---|---|---|
| R-3350-57 | Wright | Radial | 18 |
| R-3350-8 | Wright | Radial | 18 |
| R-3350-85 | Wright | Radial | 18 |
| R-3350-89A | Wright | Radial | 18 |
| R-3350-93W | Wright | Radial | 18 |
| R-4360-17 | Pratt & Whitney | Radial | 28 |
| R-4360-20 | Pratt & Whitney | Radial | 28 |
| R-4360-31 | Pratt & Whitney | Radial | 28 |
| R-4360-4 | Pratt & Whitney | Radial | 28 |
| R-4360-69 | Pratt & Whitney | Radial | 28 |
| R-4360-8 | Pratt & Whitney | Radial | 28 |
| R-680-11 | Lycoming | Radial | 9 |
| R-680-9 | Lycoming | Radial | 9 |
| R-760-2 | Wright | Radial | 7 |
| R-975-28 | Wright | Radial | 9 |