- Menasco Pirate
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The Menasco Pirate series were popular 4-cylinder, air-cooled, in-line, inverted, aero-engines, for use in light general and sport aircraft during the 1930s and 1940s.[1] The Menasco engines were interesting in that they 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.
Contents
Variants
- Menasco A-4 Pirate (also listed as Menasco 4A)
- 90hp[2]
- Menasco B-4 Pirate
- 95hp[2]
- Menasco C-4 Pirate (Military designation L-365)
- 125hp[2]
Menasco C-4 Pirate
- compression ratio 5.8: 1, dry weight 300lbs[3]
- Menasco Pirate C-4S
- 150hp[2]
- Menasco D-4 Pirate
- 125hp, compression ratio 5.5: 1, dry weight 311lbs[3]
- Menasco D-4-87 Super Pirate
- compression ratio 6: 1, dry weight 310lbs[3]
- Menasco M-50 Pirate
Applications
- Stearman-Hammond Y-1
- Willoughby Delta 8
Specifications (Menasco C4S Pirate)
General characteristics
- Type: 4-cylinder, air-cooled, in-line, inverted engine
- Bore: 121 mm (4.75 in)
- Stroke: 130 mm (5.125 in)
- Displacement: 5.9 L (363 cu in)
- Length: 1,206 mm (47.5 in)
- Width: 449 mm (17.7 in)
- Height: 724 mm (28.5 in)
- Dry weight: 135 kg (299 lb)
Components
- 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: 5.5:1
- Power-to-weight ratio: 2.67lb/hp at cruise
See also
References
- ^ "Menasco Pirate". www.bombercommandmuseum.ca. 2011. http://www.bombercommandmuseum.ca/engine_menasco.html. Retrieved 2011-26-05.
- ^ a b c d Herschel, Smith. (1986). A History of Aircraft Piston Engines. Sunflower University Press. ISBN 0-07-058472-9.
- ^ a b c "Menasco Pirate". rgl.faa.gov. http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/4dfcd1343268dfe18525670c0070d375/$FILE/ATTS25DY/TC67.pdf. Retrieved 2011-26-05.
- Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. pp. 115.
External Links
Menasco aeroengines A-4 Pirate · A-6 Buccaneer · B-2 · 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 · U-2 Unitwin · Menasco-Salmson B-2 · L-365 · XIV-2040 12 cylinder · XH-4070 24 cylinder · RJ37 'A-J-20'Lists relating to aviation General Aircraft (manufacturers) · Aircraft engines (manufacturers) · Airlines (defunct) · Airports · Civil authorities · Museums · Registration prefixes · Rotorcraft (manufacturers) · TimelineMilitary Accidents/incidents Records Categories:- Aircraft piston engines 1930-1939
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