Continental O-200
Description

The Continental C90 and O-200 are a family of air-cooled, horizontally opposed, four-cylinder, direct-drive aircraft engines of 201 in³ (3.29 L) displacement, producing between 90 and 100 horsepower (67 and 75 kW). Built by Continental Motors these engines are used in many light aircraft designs of the United States, including the early Piper PA-18 Super Cub, the Champion 7EC, the Alon Aircoupe, and the Cessna 150.

General characteristics

  • Type: Four-cylinder air-cooled horizontally opposed piston engine
  • Bore: 4.06 in (103.1 mm)
  • Stroke: 3.88 in (98.6 mm)
  • Displacement: 201 in³ (3.29 L)
  • Length: 28.53 in (724.7 mm)
  • Width: 31.56 in (801.6 mm)
  • Height: 23.18 in (588.8 mm)
  • Dry weight: 170.18 lb (77.19 kg) dry, without accessories

Performance

  • Power output: 100 hp (75 kW)
  • Specific power: 0.5 hp/in³ (23 kW/L)
  • Compression ratio: 7.0:1

Components

  • Valvetrain: Hydraulic lifters, two pushrod-actuated valves—one intake, one exhaust—per cylinder
  • Fuel system: Updraft carburettor with manual mixture control
  • Fuel type: 80/87 avgas minimum
  • Oil system: 6 US quart (5.7 L), wet sump