Piaggio Stella P.IX
| Piaggio P.IX | |
|---|---|
| P.IX mounted on the IMAM Ro.37 at the Italian Air Force Museum, Vigna di Valle | |
| Type | Air cooled radial |
| National origin | Italy |
| Manufacturer | Piaggio |
| Designer | Renzo Spolti |
| First run | 1933 |
| Major applications | |
| Developed from | Gnome-Rhône 9K |
| Developed into | Piaggio P.X |
The Piaggio P.IX, or Piaggio Stella P.IX, was an Italian nine-cylinder radial aircraft engine produced by Rinaldo Piaggio S.p.A. Based on the Gnome-Rhône 9K, the engine was rated at 600 hp (447 kW). Production was used to power a number of other aircraft developed in Italy. The main users were the Savoia-Marchetti SM.81 transport and the IMAM Ro.37bis, the main reconnaissance aircraft in the Regia Aeronautica during the Second Italo-Ethiopian War, Spanish Civil War and Second World War, but the engine was also used by other designs, including the prototype Savoia-Marchetti SM.79.