Menasco Buccaneer


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.

Menasco C6S-4 Super Buccaneer inline aircraft engine (23642738282).jpg
Menasco C6S-4 Super Buccaneer inline, Pima Air Museum, Tucson AZ
National origin United States of America
Manufacturer Menasco Motors Company

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 B6S 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 alsoEdit

Comparable engines

Related lists


  • "Engine Data Sheets". Archived from the original on February 25, 2020. Retrieved April 10, 2022.
  • Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 115.