|Type||Four-stroke aircraft engine|
|Manufacturer||Italian American Motor Engineering|
The engine was designed and produced by the KFM (Komet Flight Motor) Aircraft Motors Division of Italian American Motor Engineering of Italy as a follow-on engine to their KFM 107 series and has been out of production since 1990.
The KFM 112 is a conventional four-cylinder engine that is very compact and lightweight at only 54 kg (119 lb), including the starter, alternator and carburetor. The engine features dual electronic ignition, a single OVC carburetor, hydraulic valve lifters, nickel-silicon treated cylinders and bi-metallic valves with chromed stems. It was offered without a reduction system. Starting is electric starter only.
The engine produces 62 hp (46 kW) at 3400 rpm for three minutes for take-off, 60 hp (45 kW) at 3200 rpm for five minutes and 54 hp (40 kW) at 3090 rpm continuous.
Data from Black
- Type: Four-cylinder, horizontally opposed, four-stroke aircraft engine
- Bore: 90 mm (3.54 in)
- Stroke: 64 mm (2.52 in)
- Displacement: 1628.60 cc (99.38 cu in)
- Length: 583 mm (22.95 in)
- Width: 603 mm (23.74 in)
- Height: 380 mm (14.96 in)
- Dry weight: 54 kg (119 lb)
- Fuel type: premium auto fuel or avgas
- Oil system: pressurized
- Cooling system: air-cooled
- Reduction gear: none
- Power output: 62 hp (46 kW) at 3400 rpm for three minutes for take-off, 60 hp (45 kW) at 3200 rpm for five minutes and 54 hp (40 kW) at 3090 rpm continuous
- Compression ratio: 9.5:1
- Fuel consumption: 16.3 L/h (4.3 US gal/h) at full power, 11.2 L/h (2.97 US gal/h) at 70% power.
- Specific fuel consumption: 212 g/(hp·h)(horsepower-hour) (0.46 lb/(hp·h)) at 90% power, 185 g/(hp·h) ((0.42 lb/(hp·h)) at 70% power
- Power-to-weight ratio: 0.90 kg/hp (1.98 lb/hp)