Sauer Flugmotorenbau (Sauer Aircraft Engines) or "Sauer" is a German manufacturer of aircraft engines based at Ober-Olm in Germany. The first certified 4 stroke engine entered the market in 1987. The 4 stroke engines are certified according to CS-22 Subpart H for use in motorgliders, CS-LSA and CS-VLA type of aircraft. They also makes engines for use in ultralights and Homebuilt aircraft. The production consist of 4 stroke engines based on VW "Type 1" engines (commonly known as air-cooled beetle engines) and based on the later Wasserboxer. Sauer also makes 2-stroke engines. There have been development of a turbocharged 2 cylinder 4 stroke engine based on the Weber MPE "recreational engine" in 2009-2010, but no commercial available engine exists to date. More information...
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