Praga D

The Praga D was a four-cylinder, air-cooled, horizontally opposed aircraft engine first produced in Czechoslovakia in 1936 but which enjoyed its greatest success after World War II due to the explosion in popularity of sports flying.

Applications

• Mráz M-2 Skaut

Specifications (Praga D)

General characteristics

• Type: four-cylinder, air-cooled, horizontally opposed
• Bore: 95mm (3.7 in)
• Stroke: 100mm (3.9 in)
• Displacement: 2.83 Liters (173 cu in)
• Length: 893mm (35 in)
• Width: 810mm (32 in)
• Height: 546mm (21 in)
• Dry weight: 67Kg (148 lb)

Components

• Fuel system: Zenith or Stromberg carburetor
• Fuel type: 72 octane
• Cooling system: air

Performance

• Power output: 56 kW (75 hp) at 2,650 rpm
• Compression ratio: 6.1:1
• Fuel consumption: 235 g/HP hour
• Specific fuel consumption: 220 g/HP hour
• Oil consumption: 2 - 6 g/HP hour

References

• manufacturer's website