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.
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]
- 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
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
See also
References
- Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 115.
External links
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