Venus
Type	Radial aircraft engine
National origin	Czechoslovakia
Manufacturer	Walter Aircraft Engines
First run	1929

The Walter Venus was a seven-cylinder, air-cooled, radial engine for aircraft use, built in Czechoslovakia in the late 1920s.

Applications

• Aero A.34
• ANBO V
• Savoia-Marchetti S.56A

Specifications

Data from Flight.^[1]

General characteristics

• Type: seven-cylinder radial engine
• Bore: 105 mm (4.1 in)
• Stroke: 120 mm (4.7 in)
• Dry weight: 178 kg (393 lb)

Components

• Valvetrain: Overhead valve, one inlet and one exhaust valve per cylinder
• Fuel system: Zenith Type 50J carburettor
• Fuel type: Petrol
• Oil system: Pressure and scavenge pump
• Cooling system: Air-cooled
• Reduction gear: Direct-drive

Performance

• Power output: 82 kW (110 hp) at 1,750 rpm
• Compression ratio: 5.15:1
• Power-to-weight ratio: 0.46 kW/kg (0.28 hp/lb)