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.

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.

Variants

Menasco A6 Buccaneer

Menasco B6 Buccaneer

Menasco C6 Buccaneer

Menasco C6S Super Buccaneer

Menasco D6 Super Buccaneer

Specifications (Menasco B6S Buccaneer)

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)

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: 200hp at 2,250 RPM max/150hp at 2,025 RPM cruise
• Compression ratio: 5.5:1
• Power-to-weight ratio: 2.82 lb/hp at cruise

See also

Comparable engines

• Alfa Romeo 115
• de Havilland Gipsy Queen
• de Havilland Gipsy Six
• Hirth HM 506
• Napier Javelin
• Ranger L-440

Related lists

• List of aircraft engines

References

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