4A4-100-B2 is a piston engine model used in aircraft.
Engine Family: piston
Bore: 114.3 millimetre
Compression ratio: 7
Cooling system: Air
Cylinder configuration: Horizontally opposed
Cylinder count: 4
Displacement: 3687 cubic-centimetre
Dry weight: 87 kilogram
Fuel grade: 80
Fuel type: Avgas
Max. continuous RPM: 2550
Max. continuous hp: 100 horsepower
Max. takeoff RPM: 2550
Max. takeoff hp: 100 horsepower
Stroke: 88.9 millimetre