Menasco Buccaneer

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National origin United States of America
Manufacturer Menasco Motors Company

The Menasco Buccaneer was a series of popular six-cylinder, air-cooled, in-line, inverted, aero-engines, that were manufactured by Menasco Motors Company for light general aviation and sport aircraft during the 1930s and 1940s.

The six-cylinder Menasco engines had the name Buccaneer, while the four-cylinder engines had the name Pirate. The Menasco engines came in both supercharged and normally aspirated models. The supercharged models, with the S suffix added to their designation, had superior performance at higher altitudes with a relatively small increase in dimensions and weight.


Menasco A6 Buccaneer
Menasco B6 Buccaneer
Menasco C6 Buccaneer
Menasco C6S Super Buccaneer
Menasco D6 Super Buccaneer

Specifications (Menasco B6S Buccaneer)[edit]

General characteristics

  • Type: 6-cylinder, air-cooled, in-line, inverted engine
  • Bore: 4.5 in (114 mm)
  • Stroke: 5.125 in (130 mm)
  • Displacement: 489 cu in (8 L)
  • Length: 60.125 in (1,527 mm)
  • Width: 15 in (381 mm)
  • Height: 28.3 in (719 mm)
  • Dry weight: 423 lb (192 kg)


  • Valvetrain: 1 inlet and 1 exhaust valve per cylinder
  • Fuel system: 1 Stromberg Carburetor
  • Fuel type: 73 octane
  • Cooling system: Air


See also[edit]

Comparable engines
Related lists


  • Engine Data Sheets
  • Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 115.