In 1947, Continental introduced the C90, a four-cylinder version of the C145.
Later, Continental adopted U.S. military designation conventions and renamed the C90 the O-200. The U.S. military; however, designated this engine the O-205 to avoid confusion with the similarly designated Franklin O-200.

models

• C90-12F: 90 hp (67 kW)
• O-200: 100 hp (75 kW)

specifications

• 4-cylinder, horizontally-opposed, air-cooled piston engine
• Displacement: 201 cubic inches  (3.3 litres)
• Bore x stroke: 4.0625 x 3.875 inches

used by

• Aeronca 7EC Champion
• Cessna 150