Piaggio P.XI
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Template:Infobox Aircraft Engine
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.[1]
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
- P.XI
- P.XIbis
- P.XI R.C.15
- (geared, rated altitude Script error: No such module "convert".)
- P.XI R.C.30
- (geared, rated altitude Script error: No such module "convert".)
- P.XI R.C.40D
- [2]
- P.XI R.C.40S
- Script error: No such module "convert". (geared, rated altitude Script error: No such module "convert".), opposite rotation to 40D.
- P.XI R.C.40bis
- (geared, rated altitude Script error: No such module "convert".)
- P.XI R.2C.40
- Script error: No such module "convert"., (geared, rated altitude Script error: No such module "convert".), two-speed supercharger.
- P.XI C.40
- (direct drive, rated altitude Script error: No such module "convert".)
- P.XI R.C.44
- (geared, rated altitude Script error: No such module "convert".)
- P.XI R.C.50
- (geared, rated altitude Script error: No such module "convert".)
- P.XI R.C.60
- (geared, rated altitude Script error: No such module "convert".)
- P.XI R.C.72
- (geared, rated altitude Script error: No such module "convert".)
- P.XI R.C.100
- P.XI R.C.100/2v
- (geared, rated altitude Script error: No such module "convert".)
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)
Data from Italian Civil & Military Aircraft 1930-1945 and Aircraft Engines of the World 1945.[3][4]
General characteristics
- Type: 14-cylinder radial engine
- Bore: Script error: No such module "convert".
- Stroke: Script error: No such module "convert".
- Displacement: Script error: No such module "convert".
- Length: Script error: No such module "convert".
- Diameter: Script error: No such module "convert".
- Dry weight: Script error: No such module "convert".
- Frontal Area: Script error: No such module "convert".
Components
- Valvetrain: 2 x overhead valves per cylinder operated by rockers and pushrods
- Supercharger: Centrifugal compressor, geared to 7.9:1
- Fuel system: 1 x Piaggio T2-100 dual downdraught carburettor with automatic boost and mixture control
- Fuel type: 87 octane
- Oil system: Pressure fed at Script error: No such module "convert"., dry sump
- Cooling system: Air
- Reduction gear: Epicyclic reduction gear ratio 0.62:1
- Starter: Garelli compressed air starter
- Ignition: 2 x Marelli MF14 magnetos, 2 x spark plugs per cylinder fed by a shielded ignition harness.
Performance
- Power output:
- Take-off: Script error: No such module "convert". at 2,200rpm
- Military: Script error: No such module "convert". at 2,200rpm at Script error: No such module "convert".
- Cruising: Script error: No such module "convert". at 1,800rpm at Script error: No such module "convert".
- Specific power: 19.1 kW/L (0.49 hp/cu in)
- Compression ratio: 6.0:1
- Specific fuel consumption: 0.292 kg/kW/hr (0.48 lb/hp/hr)
- Oil consumption: 0.0134 kg/k/w/hr (0.022 lb/hp/hr)
- Power-to-weight ratio: 1.15 kW/kg (0.699 hp/lb)
See also
Related development
Related lists
References
Notes
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Script error: No such module "Check for unknown parameters".
Bibliography
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- Script error: No such module "citation/CS1".
- Script error: No such module "citation/CS1".
- Script error: No such module "citation/CS1".
- Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. Template:ISBN