Piaggio P.XII
| Industry | Aerospace |
|---|---|
| Founded | 1884 |
| Founder | Rinaldo Piaggio |
| Headquarters | Italy |
The Piaggio P.XII represents an Italian 18-cylinder radial aircraft engine conceived during the 1930s by Rinaldo Piaggio S.p.A.. Essentially, it combined two Piaggio P.X engines arranged in tandem; these were themselves licensed adaptations of the French Gnome-Rhône 9K Mistral, which had been extensively modified from the Gnome-Rhône 9A—a licensed version of the Bristol Jupiter.
This powerplant was installed in several Italian aircraft models from 1940 through to the conclusion of World War II, notably powering the Piaggio P.108. A more powerful iteration was evaluated under the designation Piaggio P.XXII.
Variants
The Piaggio P.XII was produced in several configurations: (R - Riduttore, indicating reduction gearing; C - Compressore, signifying supercharging)
- P.XII R.C.35
- Equipped with reduction gearing, optimized for an operational altitude of 3,500 m (11,500 ft)
- P.XII R.C.40
- Featuring geared drive, rated for service at 4,000 m (13,000 ft)
- P.XII R.C.100/2v
- Geared variant designed for a rated altitude of 10,000 m (33,000 ft)
- P.XV R.C.60/2v
- Geared engine with a rated altitude of 6,000 m (20,000 ft)
- P.XXII R.C.35D
- An enhanced rating version with marginally increased displacement compared to the P.XII series (geared, rated altitude 3,500 m (11,500 ft))
- P.XXII R.C.35R
- Identical to the P.XXII R.C.35D but featuring a propeller rotating in the reverse direction
- P.XXII R.C.60
- Geared configuration rated for an altitude of 6,000 m (20,000 ft)
Applications
- CANT Z.1015
- CANT Z.1018
- CANT Z.511
- Caproni Ca.169
- Piaggio P.108
- Savoia-Marchetti SM.84
- Savoia-Marchetti SM.89
Specifications (P.XII R.C.35)
See also
References
Notes
Bibliography
- Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
- Wilkinson, Paul H.. Aircraft Engines of the World. 1941