{{Short description|Piston 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=RotorWay RW133 | image= | caption= |engine_type=Horizontally opposed piston aircraft engine |manufacturer=RotorWay International |designer= |national_origin=United States |first_run= |major_applications=RotorWay Scorpion |produced= |number_built= |developed_from= |variants_with_their_own_articles= }}

The '''Rotorway RW133''' is a piston engine designed for use in helicopters and homebuilt aircraft.

==Design and development== The '''RW-133''' was developed in 1979 as an all-new piston engine for amateur-built aircraft, including a new crankcase oil system. The helicopter version features a dry sump oil system and a turbocharger option increasing power to {{convert|160|hp|kW|0|abbr=on}}.<ref>{{cite journal|journal=Air Progress|date=November 1978|page=12}}</ref> All components of the engine are cast and manufactured at RotorWay Foundries, except the Mallory Ignition and Dell'Orto carburetor.<ref>{{cite journal|journal=Air Progress|date=August 1989|title=Executive Privellege|author=Peter Lert}}</ref> <!-- ==Operational history== --> <!-- ==Variants== --> <!-- ==Applications== --> <!-- Engines on display== -->

==Specifications (variant) == {{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=Four-cylinder air-cooled horizontally opposed piston engine |bore={{convert|4|in|mm|0|abbr=on}} |stroke= |displacement= |length= |diameter= |width= |height= |weight={{convert|160|lb|kg|0|abbr=on}} with propeller |valvetrain= |supercharger= |turbocharger= |fuelsystem=Updraft carburetor with manual mixture control |fueltype=80/87 avgas minimum |oilsystem= |coolingsystem=Water-cooled |power={{convert|100|hp|kW|0|abbr=on}} @2700rpm |specpower= |compression= |fuelcon= |specfuelcon= |oilcon= |power/weight= }}

<!-- ==See also== --> {{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}}

{{RotorWay aircraft}}

Category:1970s aircraft piston engines