{{Short description|Aircraft engine}} <!-- This article is a part of Wikipedia:WikiProject Aircraft. Please see Wikipedia:WikiProject Aircraft/page content for recommended layout. --> {{infobox aero engine | name=Sauer S 2100 | image= | caption= |engine_type=Horizontally opposed piston engine |manufacturer=Sauer Flugmotorenbau GmbH |designer= |national_origin=Germany |first_run= |major_applications=Motorgliders and VLA |produced= |number_built= |developed_from=Volkswagen air-cooled engine |variants_with_their_own_articles= }}
The '''Sauer S 2100''' is a family of four-stroke aircraft engines, certified according to JAR 22-H (CS-22 subpart H)<ref name="Sauer_Flugmotorenbau_GmbH">[http://www.sauer-flugmotorenbau.de], Sauer Flugmotorenbau GmbH</ref><ref name="CS-22">[http://www.easa.europa.eu/certification-specifications/cs-22-sailplanes-and-powered-sailplanes CS-22], CS-22</ref>
==Design and development== The engine is based on the Volkswagen air-cooled engine, extensively modified for aircraft use and all the parts are custom made.<ref name="Sauer_Flugmotorenbau_GmbH" /> They are certified according to CS-22 subpart H<ref name="CS-22" /><ref name="LBA">[https://www2.lba.de/data/bb/Motoren/en_4608_01.pdf LBA 4608], LBA</ref> and can therefore be used in motorgliders and light aircraft that are certified as CS-VLA<ref name="CS-VLA">[http://www.easa.europa.eu/document-library/certification-specifications/cs-vla-amendment-1 CS-VLA], CS-VLA</ref> and CS-LSA<ref name="CS-LSA">[http://www.easa.europa.eu/document-library/certification-specifications/cs-lsa-amendment-1 CS-LSA], CS-LSA</ref> <!-- ==Operational history== -->
==Variants== ;Sauer S 2100-1-AS1: ;Sauer S 2100-1-SS1:
==Applications== *Scheibe SF 36 <!-- Survivors --> <!-- Engines on display== -->
==Specifications==
{{pistonspecs |<!-- If you do not understand how to use this template, please ask at Wikipedia talk:WikiProject Aircraft --> <!-- Please include units where appropriate (main comes first, alt in parentheses). If data are missing, leave the parameter blank (do not delete it). For additional lines, end your alt units with </li> and start a new, fully formatted line with <li> --> |type= |ref= |bore=90mm |stroke=84mm |displacement=2136cc |length= |diameter= |width= |height= |weight= 64 kg |valvetrain=Single overhead exhaust valve, single overhead inlet valve per cylinder |supercharger= |turbocharger= |fuelsystem=Bing carburetor with altitude compensation |fueltype=min 98 RON |oilsystem= |coolingsystem=Air-cooled |power=80hp at 3000 rpm |specpower= |compression=8.8:1 |fuelcon= |specfuelcon= |oilcon= |power/weight= |designer= |reduction_gear=
|general_other= |components_other= |performance_other=
}}
==See also== *Sauer Engines {{aircontent <!-- include as many lines are appropriate. additional lines/entries with carriage return. --> |see also= |related=<!-- related developments --> |similar aircraft=<!-- similar or comparable aircraft --> |lists= }}
==References== {{Reflist}}
==External links== *{{Official website|http://www.sauer-flugmotorenbau.de/}} {{Sauer aeroengines}}
S2100 Category:Boxer engines Category:Air-cooled aircraft piston engines