Menasco Pirate
{{Short description|Four-cylinder, air-cooled, in-line, inverted aero-engine series}}
{{Use mdy dates|date=January 2022}}
{{Use American English|date=January 2022}}
| {{Infobox aircraft begin
|name = Pirate |image = Menasco C-4 Pirate.jpg |caption = }}{{Infobox aircraft engine |type= Piston aero engine |manufacturer=Menasco Motors Company |national origin=United States |first run=1930s |major applications= Great Lakes 2T-1MS |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.{{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 }} 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.Parker, Dana T. Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II, pp. 122–24, Cypress, CA, 2013.
Variants
;Menasco A-4 Pirate (also listed as Menasco 4A)
;Menasco B-4 Pirate
;Menasco C-4 Pirate (Military designation L-365)
:125 hp. Compression ratio 5.8: 1, dry weight 300 lb{{cite web |url=http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/4dfcd1343268dfe18525670c0070d375/$FILE/ATTS25DY/TC67.pdf |title=Menasco Pirate |publisher=rgl.faa.gov |access-date=2011-05-26}}
;Menasco Pirate C-4S
;Menasco D-4 Pirate
:125 hp, compression ratio 5.5:1, dry weight 311 lb
;Menasco D-4-87 Super Pirate
:134 hp, Compression ratio 6:1, dry weight 310 lb
;Menasco L-365-1: military designation for the C4-4LA{{Citation needed|date=September 2015}}
;Menasco L-365-3: similar to -1 but changes to cylinder heads, lubrication and carburettor{{Citation needed|date=September 2015}}
Applications
Specifications (Menasco C4S Pirate)
{{pistonspecs
|
|type=4-cylinder, air-cooled, in-line, inverted engine
|bore=4.75 in (120.65 mm)
|stroke=5.125 in (130.18 mm)
|displacement=363.27 cu in (5.95 L)
|length=47.5 in (1,206 mm)
|diameter=
|width=17.7 in (449 mm)
|height=28.5 in (724 mm)
|weight=299 lb (135 kg)
|valvetrain=1 inlet and 1 exhaust valve per cylinder
|supercharger=
|turbocharger=
|fuelsystem=1 Stromberg Carburetor
|fueltype=73 octane
|oilsystem=
|coolingsystem=Air
|power=150 hp at 2,260 RPM max/112hp at 2,025 RPM cruise
|specpower=
|compression=5.5:1
|fuelcon=
|specfuelcon=
|oilcon=
|power/weight= 0.37hp/lb at cruise
}}
See also
{{aircontent
|see also=
|related=
|lists=
|similar engines=
- Alfa Romeo 110
- Argus As 8
- Blackburn Cirrus Major
- de Havilland Gipsy Major
- Elizalde Tigre IV
- Hirth HM 504
}}
References
{{reflist}}
- {{cite book |last= Gunston |first= Bill |title=World Encyclopedia of Aero Engines |year=1986 |publisher=Patrick Stephens |location= Wellingborough |pages=115}}
External links
{{Commons category|Menasco Pirate}}
- [http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/4dfcd1343268dfe18525670c0070d375/$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:Air-cooled aircraft piston engines
Category:1930s aircraft piston engines