Rotax 277
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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.[1][2]
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.[1][2]
The Rotax 277 is no longer in production.[1]
Applications
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Specifications (277)
Data from ROTAX 277 UL Data Sheet[1]
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
References
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- ^ a b c d Page Module:Citation/CS1/styles.css has no content.BRP-Rotax GmbH & Co. KG (n.d.). "ROTAX 277 UL - 26 hp Fan Cooled" (PDF). Retrieved 14 March 2009.
- ^ a b Raisner, William: LEAF catalog, pages 6-105. Leading Edge Airfoils, 1995.
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