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The Sauer S 2700 UL were a 4 stroke aircraft engine for homebuilt aircraft[1][2]

Sauer S 2700UL
Type	Horizontally opposed piston engine
National origin	Germany
Manufacturer	Sauer Flugmotorenbau GmbH
Major applications	Experimental Aircraft
Developed from	Wasserboxer

Design and development

The engine is based on the Wasserboxer. It is extensively modified for aircraft use and all the parts are custom made. These engines are derived from the certified engines produced by the same manufacturer and used in several motorgliders and small aircraft.[1] This particular engine must be one of the largest displacement VW conversions that have been built, but it is unknown if it ever entered production.

Specifications (S 2700 UL)

General characteristics

• Bore: 97mm
• Stroke: 90mm
• Displacement: 2660cc
• Dry weight: 75 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: 105hp at 3000 rpm
• Compression ratio: 10:1

See also

Sauer engines

References

External links

• Official website

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