Rahul Sharma

Sunbeam Spartan

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The Sunbeam Spartan was a British 12-cylinder aero-engine designed and built in 1916.

Contents

Design and development

Louis Coatalen concentrated on water-cooled engines for the most part, but did design an air-cooled V-12 named Spartan. Little is known of this engine which had a bore of 105 mm (4 in) and stroke of 130 mm (5 in), capacity of 14.03 l (856 cu in) and output of 149 kW (200 hp) driving a propeller through a reduction gearbox. The single overhead camshaft operated two inlet and two exhaust valves per cylinder via rockers and ignition was supplied by two 6-cyl. Magnetos supplying spark to one spark-plug per cylinder.

Specifications (Spartan)

Data from Sunbeam Aero-Engines

General characteristics

  • Type: V-12 air-cooled piston engine
  • Bore: 105 mm (4 in)
  • Stroke: 130 mm (5 in)
  • Displacement: 14.03 l (856 cu in)
  • Designer: Louis Coatalen
  • Components

  • Valvetrain: Single overhead camshaft, two exhaust and two inlet valves per cylinder
  • Fuel system: gravity fed
  • Fuel type: Gasoline
  • Oil system: Dry sump, pressure fed
  • Cooling system: Air-cooled
  • Reduction gear: ratio not known
  • Performance

  • Power output: 149 kW (200 hp)
  • References

    Sunbeam Spartan Wikipedia


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