Regulus
Walter Regulus II
Type Radial aero engine
National origin Czechoslovakia
Manufacturer Walter Aircraft Engines
First run 1934

The Walter Regulus was a Czechoslovakian five-cylinder, air-cooled radial engine for powering light aircraft that first ran in 1934. The engine produced 186 kW (250 hp).[1][2]

Engines on display

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

Specifications (Regulus)

Data from Jane's all the World's Aircraft 1931[3]

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

Related lists

References

Wikimedia Commons has media related to Walter Regulus.
  1. ↑ Gunston, Bill (1989). World encyclopaedia of aero engines (Fully rev. 2nd ed.). P. Stephens. p. 174. ISBN 1-85260-163-9.
  2. ↑ "ENGINES AT THE SHOW" (pdf). Flight. XXVI (1352): 1250–1255. 22 November 1934. Retrieved 26 December 2018.
  3. ↑ Grey, C.G., ed. (1931). Jane's all the World's Aircraft 1931. London: Sampson Low, Marston & company, ltd. p. 29d.


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