Walter Regulus

Regulus
File:Letecké muzeum Kbely (73).jpg Walter Regulus II
Type	Radial aero engine
National origin	Czechoslovakia
Manufacturer	Walter Aircraft Engines
First run	1934

The Walter Regulus was a Czechoslovak five-cylinder, air-cooled radial engine for powering light aircraft that first ran in 1934. The engine produced 186 kW (250 hp).

Engines on display

A preserved example of the Walter Regulus engine is on display at the following museum:

• Prague Aviation Museum, Kbely

Specifications (Regulus)

Data from Jane's all the World's Aircraft 1931

General characteristics

• Type: 5-cylinder radial piston engine
• Bore: 135 mm (5.3 in)
• Stroke: 160 mm (6.3 in)
• Displacement: 11.45 L (699 cu in)
• Length: 1,104 mm (43.5 in)
• Diameter: 1,185 mm (46.7 in)
• Dry weight: 191 kg (421 lb)

Components

• Valvetrain: One intake and one exhaust valve per cylinder operated by pushrods and rockers
• Fuel system: One Zenith double 50DCJ carburettor
• Fuel type: Benzine / Benzol 50:50
• Oil system: dry sump, pressure system
• Cooling system: Air-cooled

Performance

• Power output: Normal:138 kW (185 hp) at 1,800 rpm; Maximum 170 kW (230 hp)
• Compression ratio: 5.7:1
• Specific fuel consumption: 0.282 kg/kWh (0.464 lb/(hp⋅h))
• Oil consumption: 0.013 kg/kWh (0.022 lb/(hp⋅h))

See also

Comparable engines

• Armstrong Siddeley Mongoose
• Kinner R-5

Related lists

• List of aircraft engines