Sauer S 1800
The Sauer S 1800 is a family of German four-stroke aircraft engines, certified according to JAR 22-HThe engine is based on the Volkswagen air-cooled engine, extensively modified for aircraft use and all the parts are custom made. They are certified according to CS-22 subpart H and can therefore be used in motorgliders and light aircraft that are certified as CS-VLA and CS-LSAVariants
;Sauer S 1800-1-ES1:
;Sauer S 1800-1-ES1C:
;Sauer S 1800-1-RS1:Applications