{{Short description|Four-cylinder, air-cooled, in-line, inverted aero-engine series}} {{Use mdy dates|date=January 2022}} {{Use American English|date=January 2022}} <!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> {{infobox aero engine |name = Pirate |image = Menasco C-4 Pirate.jpg |caption = |engine_type= [[Reciprocating engine|Piston]] [[Aircraft engine|aero engine]] |manufacturer=[[Menasco Motors Company]] |national_origin=[[United States]] |first_run=1930s |major_applications= {{ubl | [[Great Lakes Sport Trainer|Great Lakes 2T-1MS]] | [[Ryan ST]] }} |number_built = |developed_from = |variants_with_their_own_articles = |developed_into = }}
The '''Menasco Pirate''' series are four-cylinder, air-cooled, in-line, inverted aero-engines, built by the [[Menasco Motors Company]] of [[Burbank, California]], for use in light general and sport aircraft during the 1930s and 1940s.<ref name="Menasco Pirate">{{cite web |url=http://www.bombercommandmuseum.ca/engine_menasco.html |title=Menasco Pirate |publisher=www.bombercommandmuseum.ca |year=2011 |access-date=2011-05-26 |archive-date=March 24, 2012 |archive-url=https://web.archive.org/web/20120324181243/http://www.bombercommandmuseum.ca/engine_menasco.html |url-status=dead }}</ref> The Menasco engines came in both normally aspirated and supercharged forms, with the supercharged models exhibiting superior performance at higher altitudes, with a relatively small increase in dimensions and weight. The supercharged models had the ''S'' suffix added to their designation to show supercharging.<ref>Parker, Dana T. ''Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II,'' pp. 122–24, Cypress, CA, 2013.</ref>
==Variants== ;Menasco A-4 Pirate (also listed as Menasco 4A) :90 hp.<ref name="Pirate Book">{{cite book |last= Herschel |first= Smith. |title= A History of Aircraft Piston Engines |publisher= Sunflower University Press |year=1986 |isbn= 0-07-058472-9}}</ref> ;Menasco B-4 Pirate :95 hp.<ref name="Pirate Book"/> ;Menasco C-4 Pirate (Military designation L-365) :125 hp.<ref name="Pirate Book"/> Compression ratio 5.8: 1, dry weight 300 lb<ref name="Pirate">{{cite web |url=http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/4dfcd1343268dfe18525670c0070d375/$FILE/ATTS25DY/TC67.pdf |title=Menasco Pirate |publisher=rgl.faa.gov |access-date=2011-05-26}}</ref> ;Menasco Pirate C-4S :Super-charged 150 hp.<ref name="Pirate Book"/> ;Menasco D-4 Pirate :125 hp, compression ratio 5.5:1, dry weight 311 lb<ref name="Pirate"/> ;Menasco D-4-87 Super Pirate :134 hp, Compression ratio 6:1, dry weight 310 lb<ref name="Pirate"/> ;Menasco L-365-1: military designation for the C4-4LA{{Citation needed|date=September 2015}} ;Menasco L-365-3: similar to -1 but changes to cylinder heads, lubrication and carburettor{{Citation needed|date=September 2015}}
==Applications== *[[Argonaut Pirate]] *[[Aeroneer 1-B]] *[[Great Lakes Sport Trainer|Great Lakes 2T-1MS]] *[[de Havilland DH.82 Tiger Moth#Production|de Havilland Canada DH.82C ''Menasco Moth'']] (Canada, 136 built) *[[Fairchild 22|Fairchild 22 C7B]] *[[Granville Gee Bee Sportster|Gee Bee Sportster Model D]] *[[Jones S-125]] *[[Ryan ST]] *[[Stearman-Hammond Y-1]] *[[VEF I-17]] *[[Willoughby Delta 8]]
==Specifications (Menasco C4S Pirate)== {{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=4-cylinder, air-cooled, in-line, inverted engine |bore=4.75 in (120.65 mm) |stroke=5.125 in (130.18 mm) |displacement=363.27 cu in (5.95 L) |length=47.5 in (1,206 mm) |diameter= |width=17.7 in (449 mm) |height=28.5 in (724 mm) |weight=299 lb (135 kg) |valvetrain=1 inlet and 1 exhaust valve per cylinder |supercharger= |turbocharger= |fuelsystem=1 Stromberg Carburetor |fueltype=73 octane |oilsystem= |coolingsystem=Air |power=150 hp at 2,260 RPM max/112hp at 2,025 RPM cruise |specpower= |compression=5.5:1 |fuelcon= |specfuelcon= |oilcon= |power/weight= 0.37hp/lb at cruise }}
==See also== {{aircontent <!-- other related articles that have not already linked: --> |see also=
<!-- designs which were developed into or from this aircraft: --> |related=
<!-- relevant lists that this aircraft appears in: --> |lists= *[[List of aircraft engines]]
<!-- For aircraft engine articles. Engines that are of similar to this design: --> |similar engines= *[[Alfa Romeo 115|Alfa Romeo 110]] *[[Argus As 8]] *[[Blackburn Cirrus Major]] *[[de Havilland Gipsy Major]] *[[Elizalde Tigre IV]] *[[Hirth HM 504]]
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==References== {{reflist}} * {{cite book |last= Gunston |first= Bill |title=World Encyclopedia of Aero Engines |year=1986 |publisher=Patrick Stephens |location= Wellingborough |pages=115}}
==External links== {{Commons category|Menasco Pirate}} * [http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/4dfcd1343268dfe18525670c0070d375/$FILE/ATTS25DY/TC67.pdf TC67.pdf] * [http://www.bombercommandmuseum.ca/engine_menasco.html www.bombercommandmuseum.ca] {{Webarchive|url=https://web.archive.org/web/20120324181243/http://www.bombercommandmuseum.ca/engine_menasco.html |date=March 24, 2012 }} * [http://www.aircraft-manuals.com/c4c4spirate.html www.aircraft-manuals.com] * [http://www.oldengine.org/members/diesel/Duxford/usaero8.htm www.oldengine.org] {{Webarchive|url=https://web.archive.org/web/20070804010147/http://www.oldengine.org/members/diesel/Duxford/usaero8.htm |date=August 4, 2007 }}
{{Menasco aeroengines}}
[[Category:Aircraft air-cooled inline piston engines]] [[Category:1930s aircraft piston engines]] [[Category:Inverted aircraft piston engines]] [[Category:Menasco aircraft engines|Pirate]] [[Category:Straight-four engines]]