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The Sauer S 1900 UL is a 4 stroke aircraft engine for homebuilt and ultralight aircraft.[1]

Sauer S 1900 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

• Skyranger SW[2]

Specifications

General characteristics

• Bore: 94 mm
• Stroke: 69 mm
• Displacement: 1,915 cc
• Dry weight: 64 kg

Components

• Valvetrain: Single overhead exhaust valve, single overhead inlet valve per cylinder
• Fuel system: Bing carburetor with altitude compensation
• Fuel type: min 95 RON
• Cooling system: Air-cooled

Performance

• Power output: 75 hp at 3,200 rpm
• Compression ratio: 8.5:1

See also

• Sauer Engines

References

External links

• Official website

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