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.

Further development led to the P.XIX. This featured an increased compression ratio from 6:1 to 7:1 and an rpm increase from 2,400 to 2,600.

Variants

1. P.XI:

2. P.XIbis:

3. P.XI R.C.15: (geared, rated altitude )

4. P.XI R.C.30: (geared, rated altitude )

5. P.XI R.C.40D:

6. P.XI R.C.40S : (geared, rated altitude ), opposite rotation to 40D.

7. P.XI R.C.40bis: (geared, rated altitude )

8. P.XI R.2C.40:, (geared, rated altitude ), two-speed supercharger.

9. P.XI C.40: (direct drive, rated altitude )

10. P.XI R.C.44: (geared, rated altitude )

11. P.XI R.C.50: (geared, rated altitude )

12. P.XI R.C.60: (geared, rated altitude )

13. P.XI R.C.72: (geared, rated altitude )

14. P.XI R.C.100:

15. P.XI R.C.100/2v: (geared, rated altitude )

Applications

• Breda Ba.65

• Breda Ba.88

• CANT Z.516

• CANT Z.1007

• Caproni Ca.135

• Caproni Ca.161

• Reggiane Re 2000

• Saab 17C

• Savoia-Marchetti SM.79B

• Savoia-Marchetti SM.84

Specifications (P.XI R.C.40)

See also

References

Notes

Bibliography

• Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989.