Leonides 521/2 is a piston engine model used in aircraft.
Engine Family: piston
Bore: 122 millimetre
Compression ratio: 6.8
Cooling system: Air
Cylinder configuration: Radial
Cylinder count: 9
Displacement: 11783 cubic-centimetre
Fuel grade: 100/130
Fuel type: Avgas
Max. continuous RPM: 2800
Max. continuous hp: 400 horsepower
Max. takeoff RPM: 3000
Max. takeoff hp: 500 horsepower
Stroke: 112 millimetre
