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The Sauer S 2200 UL is a 4 stroke aircraft engine designed for homebuilt and ultralight aircraft.[1][2]

Sauer S 2200 UL
Type	Horizontally opposed piston engine
National origin	Germany
Manufacturer	Sauer Flugmotorenbau GmbH
Major applications	Ultralights and Experimental Aircraft
Developed from	Volkswagen air-cooled engine

Design and development

The engine is based on the Volkswagen air-cooled engine. It is extensively modified for aircraft use and all the parts are custom made. The engine is derived from the certified engines produced by the same manufacturer and used in several motorgliders and light aircraft.[1]

Applications

• Groppo Trial[3]
• Rans S-6 Coyote II[4]

Specifications (variant)

General characteristics

• Bore: 92mm
• Stroke: 84mm
• Displacement: 2234cc
• Dry weight: 66 kg

Components

• Valvetrain: Single overhead exhaust valve, single overhead inlet valve per cylinder
• Fuel system: Bing carburetor with altitude compensation
• Fuel type: min 98 RON
• Cooling system: Air-cooled

Performance

• Power output: 85hp at 3000 rpm
• Compression ratio: 8.8:1

References

External links

• Official website

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