The Piaggio P.XI was an Italian 14-cylinder radial aircraft engine. The P.XI was a licensed derivative of the French Gnome-Rhône Mistral Major 14K produced in Italy.Gunston 1989, p.110.

Isotta Fraschini Isotta Fraschini () was an Italian luxury car manufacturer, also producing trucks, as well as engines for marine and aviation use. Founded in Milan, Italy, in 1900 by Cesare Isotta and the brothers Vincenzo, Antonio, and Oreste Fraschini, in 19 ...

also produced a version of the 14K called the K.14. Further development led to the P.XIX. This featured an increased

compression ratio The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it is measured two ways: the stati ...

from 6:1 to 7:1 and an rpm increase from 2,400 to 2,600.

Variants

;P.XI: ;P.XIbis: ;P.XI R.C.15: (geared, rated altitude ) ;P.XI R.C.30: (geared, rated altitude ) ;P.XI R.C.40D: : (geared, rated altitude ) ;P.XI R.C.40S : (geared, rated altitude ), opposite rotation to 40D. ;P.XI R.C.40bis: (geared, rated altitude ) ;P.XI R.2C.40:, (geared, rated altitude ), two-speed supercharger. ;P.XI C.40: (direct drive, rated altitude ) ;P.XI R.C.44: (geared, rated altitude ) ;P.XI R.C.50: (geared, rated altitude ) ;P.XI R.C.60: (geared, rated altitude ) ;P.XI R.C.72: (geared, rated altitude ) ;P.XI R.C.l00: ;P.XI R.C.100/2v: (geared, rated altitude )

Applications

Breda Ba.65 The Breda Ba.65 was an Italian all-metal single-engine, low-wing monoplane used by ''Aviazione Legionaria'' during the Spanish Civil War and '' Regia Aeronautica'' in the first half of World War II. It was the only Italian ground-attack aircr ...

* Breda Ba.88 * CANT Z.1007 *

Caproni Ca.135 The Caproni Ca.135 was an Italian medium bomber designed in Bergamo in Italy by Cesare Pallavicino. It flew for the first time in 1935, and entered service with the Peruvian Air Force in 1937, and with the ''Regia Aeronautica'' (Italian Royal Air ...

* Caproni Ca.161 *

Reggiane Re 2000 The Reggiane Re.2000 ''Falco'' I was an Italian all metal, low-wing monoplane developed and manufactured by aircraft company Reggiane. The type was used by the '' Regia Aeronautica'' (Italian Air Force) and the Swedish Air Force during the first ...

Saab 17 The Saab 17 is a Swedish single-engine monoplane reconnaissance dive-bomber aircraft of the 1940s originally developed by ASJA prior to its merger into Saab. It was the first all-metal stressed skin aircraft developed in Sweden. Design and dev ...

C * Savoia-Marchetti SM.79B *

Savoia-Marchetti SM.84 The Savoia-Marchetti SM.84, not to be confused with the Savoia-Marchetti S.84 airliner prototype, was an Italian bomber aircraft of World War II. It was designed by Savoia-Marchetti as a replacement for its successful SM.79, and shared its thr ...

Specifications (P.XI R.C.40)

References

Notes

Bibliography