# Menasco Pirate > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Menasco_Pirate > Markdown URL: https://mediated.wiki/source/Menasco_Pirate.md > Source: https://en.wikipedia.org/wiki/Menasco_Pirate > Source revision: 1352308412 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Four-cylinder, air-cooled, in-line, inverted aero-engine series Pirate Type Piston aero engine National origin United States Manufacturer Menasco Motors Company First run 1930s Major applications Great Lakes 2T-1MS Ryan ST The **Menasco Pirate** series are four-cylinder, air-cooled, in-line, inverted aero-engines, built by the [Menasco Motors Company](/source/Menasco_Motors_Company) of [Burbank, California](/source/Burbank%2C_California), for use in light general and sport aircraft during the 1930s and 1940s.[1] 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.[2] ## Variants **Menasco A-4 Pirate (also listed as Menasco 4A)** - 90 hp.[3] **Menasco B-4 Pirate** - 95 hp.[3] **Menasco C-4 Pirate (Military designation L-365)** - 125 hp.[3] Compression ratio 5.8: 1, dry weight 300 lb[4] **Menasco Pirate C-4S** - Super-charged 150 hp.[3] **Menasco D-4 Pirate** - 125 hp, compression ratio 5.5:1, dry weight 311 lb[4] **Menasco D-4-87 Super Pirate** - 134 hp, Compression ratio 6:1, dry weight 310 lb[4] **Menasco L-365-1** - military designation for the C4-4LA[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*] **Menasco L-365-3** - similar to -1 but changes to cylinder heads, lubrication and carburettor[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*] ## Applications - [Argonaut Pirate](/source/Argonaut_Pirate) - [Aeroneer 1-B](/source/Aeroneer_1-B) - [Great Lakes 2T-1MS](/source/Great_Lakes_Sport_Trainer) - [de Havilland Canada DH.82C *Menasco Moth*](/source/De_Havilland_DH.82_Tiger_Moth#Production) (Canada, 136 built) - [Fairchild 22 C7B](/source/Fairchild_22) - [Gee Bee Sportster Model D](/source/Granville_Gee_Bee_Sportster) - [Jones S-125](/source/Jones_S-125) - [Ryan ST](/source/Ryan_ST) - [Stearman-Hammond Y-1](/source/Stearman-Hammond_Y-1) - [VEF I-17](/source/VEF_I-17) - [Willoughby Delta 8](/source/Willoughby_Delta_8) ## Specifications (Menasco C4S Pirate) ### General characteristics - **Type:** 4-cylinder, air-cooled, in-line, inverted engine - **[Bore](/source/Bore_(engine)):** 4.75 in (120.65 mm) - **[Stroke](/source/Stroke_(engine)):** 5.125 in (130.18 mm) - **[Displacement](/source/Engine_displacement):** 363.27 cu in (5.95 L) - **Length:** 47.5 in (1,206 mm) - **Width:** 17.7 in (449 mm) - **Height:** 28.5 in (724 mm) - **[Dry weight](/source/Dry_weight):** 299 lb (135 kg) ### Components - **[Valvetrain](/source/Valvetrain):** 1 inlet and 1 exhaust valve per cylinder - **Fuel system:** 1 Stromberg Carburetor - **Fuel type:** 73 octane - **Cooling system:** Air ### Performance - **Power output:** 150 hp at 2,260 RPM max/112hp at 2,025 RPM cruise - **[Compression ratio](/source/Compression_ratio):** 5.5:1 - **[Power-to-weight ratio](/source/Power-to-weight_ratio):** 0.37hp/lb at cruise ## See also **Comparable engines** - [Alfa Romeo 110](/source/Alfa_Romeo_115) - [Argus As 8](/source/Argus_As_8) - [Blackburn Cirrus Major](/source/Blackburn_Cirrus_Major) - [de Havilland Gipsy Major](/source/De_Havilland_Gipsy_Major) - [Elizalde Tigre IV](/source/Elizalde_Tigre_IV) - [Hirth HM 504](/source/Hirth_HM_504) **Related lists** - [List of aircraft engines](/source/List_of_aircraft_engines) ## References 1. **[^](#cite_ref-Menasco_Pirate_1-0)** ["Menasco Pirate"](https://web.archive.org/web/20120324181243/http://www.bombercommandmuseum.ca/engine_menasco.html). www.bombercommandmuseum.ca. 2011. Archived from [the original](http://www.bombercommandmuseum.ca/engine_menasco.html) on March 24, 2012. Retrieved May 26, 2011. 1. **[^](#cite_ref-2)** Parker, Dana T. *Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II,* pp. 122–24, Cypress, CA, 2013. 1. ^ [***a***](#cite_ref-Pirate_Book_3-0) [***b***](#cite_ref-Pirate_Book_3-1) [***c***](#cite_ref-Pirate_Book_3-2) [***d***](#cite_ref-Pirate_Book_3-3) Herschel, Smith. (1986). *A History of Aircraft Piston Engines*. Sunflower University Press. [ISBN](/source/ISBN_(identifier)) [0-07-058472-9](https://en.wikipedia.org/wiki/Special:BookSources/0-07-058472-9). 1. ^ [***a***](#cite_ref-Pirate_4-0) [***b***](#cite_ref-Pirate_4-1) [***c***](#cite_ref-Pirate_4-2) ["Menasco Pirate"](http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/4dfcd1343268dfe18525670c0070d375/$FILE/ATTS25DY/TC67.pdf) (PDF). rgl.faa.gov. Retrieved May 26, 2011. - Gunston, Bill (1986). *World Encyclopedia of Aero Engines*. Wellingborough: Patrick Stephens. p. 115. ## External links Wikimedia Commons has media related to [Menasco Pirate](https://commons.wikimedia.org/wiki/Category:Menasco_Pirate). - [TC67.pdf](http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/4dfcd1343268dfe18525670c0070d375/$FILE/ATTS25DY/TC67.pdf) - [www.bombercommandmuseum.ca](http://www.bombercommandmuseum.ca/engine_menasco.html) [Archived](https://web.archive.org/web/20120324181243/http://www.bombercommandmuseum.ca/engine_menasco.html) March 24, 2012, at the [Wayback Machine](/source/Wayback_Machine) - [www.aircraft-manuals.com](http://www.aircraft-manuals.com/c4c4spirate.html) - [www.oldengine.org](http://www.oldengine.org/members/diesel/Duxford/usaero8.htm) [Archived](https://web.archive.org/web/20070804010147/http://www.oldengine.org/members/diesel/Duxford/usaero8.htm) August 4, 2007, at the [Wayback Machine](/source/Wayback_Machine) v t e Menasco Motors Company aero engines Menasco designs A-4 Pirate A-6 Buccaneer B-4 Pirate B-6 Buccaneer C-4 Pirate C-6 Buccaneer C-6S Super Buccaneer D-4 Pirate D-4B Super Pirate D-6S Super Buccaneer M-50 Unitwin 2-544 L-365 XIV-2040 XH-4070 RJ37 Licensed designs B-2 O-45 --- Adapted from the Wikipedia article [Menasco Pirate](https://en.wikipedia.org/wiki/Menasco_Pirate) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Menasco_Pirate?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.