| Engine name | manufacturer | configuration | cylinders |
|---|---|---|---|
| P.XI R.C.50 | Piaggio | Radial | 14 |
| P.XI R.C.60 | Piaggio | Radial | 14 |
| P.XI R.C.72 | Piaggio | Radial | 14 |
| P.XII R.C.35 | Piaggio | Radial | 18 |
| P.XIX R.C.45 Turbine | Piaggio | Radial | 14 |
| P.XIX R.C.50 | Piaggio | Radial | 14 |
| Pegasus 21 | Bristol | Radial | 9 |
| Pegasus 22 | Bristol | Radial | 9 |
| Pegasus 23 | Bristol | Radial | 9 |
| Pegasus 24 | Bristol | Radial | 9 |
| Pegasus 25 | Bristol | Radial | 9 |
| Pegasus 26 | Bristol | Radial | 9 |
| Pegasus 27 | Bristol | Radial | 9 |
| Pegasus 29 | Bristol | Radial | 9 |
| Pegasus 30 | Bristol | Radial | 9 |