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The Rotax 377 is a 35 hp (26 kW), twin-cylinder, two-stroke aircraft engine, that was built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.[1][2]
| 377 | |
|---|---|
| Type | Piston aero-engine |
| National origin | Austria |
| Manufacturer | Rotax |
| Major applications | Ultralight aircraft |
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The Rotax 377 features piston-ported, air-cooled cylinder heads and cylinders, utilizing either a fan or free air for cooling. Lubrication is by use of pre-mixed fuel and oil. The 377 has a single Bosch Flywheel Magneto Generator 12 volt ignition system and is equipped with a 36 mm Bing double float carburetor, with either a hand lever or cable choke.[1][2]
The Rotax 377 is no longer in production.[1]
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Data from ROTAX 377 UL Data Sheet[1]
General characteristics
- Type: two-stroke air-cooled aeroengine
- Bore: 62 mm (2.44 in)
- Stroke: 61 mm (2.40 in)
- Displacement: 368.3 cc (22.48 cu in)
- Dry weight: 38.4 kg (84.6 lb) (complete including reduction drive and exhaust system)
Components
- Valvetrain: piston ports
- Fuel system: pneumatic pump pressurized
- Fuel type: premium unleaded autofuel
- Oil system: premixed in the fuel at 50:1
- Cooling system: fan or free air
Performance
- Power output: 26 kW (35 hp) at 6500 rpm
- Power-to-weight ratio: 0.67 kW/kg (0.41 hp/lb)
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