- Source: Rotax 277
The Rotax 277 is a 26 hp (19 kW), single-cylinder, two-stroke aircraft engine, that was built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.
Development
The Rotax 277 features a single piston ported, air-cooled cylinder head and cylinder, utilizing either a fan or free air for cooling. Lubrication is pre-mixed fuel and oil. The 277 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.
The Rotax 277 is no longer in production.
Applications
Specifications (277)
Data from ROTAX 277 UL Data Sheet
= General characteristics
=Type: two-stroke air-cooled aeroengine
Bore: 72 mm (2.83 in)
Stroke: 66 mm (2.60 in)
Displacement: 268.7 cc (16.40 cu in)
Dry weight: 29.5 kg (65 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: 19 kW (26 hp) at 6250 rpm
Compression ratio: Theoretical 11.8, effective 6.7
Power-to-weight ratio: 0.64 kW/kg (0.40 hp/lb)
See also
Hirth F-30
KFM 107
Zanzottera MZ 34
References
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