The Franklin O-225 (company designation 4A/4A4) was an American air-cooled aircraft engine that first ran in the mid-1940s.
The engine was of four-cylinder, horizontally-opposed layout and displaced 225 cu in (4 L).
The power output was between 75 hp (56 kW) and 125 hp (93 kW) depending on the version.
Data from [citation needed] Comparable engines Related lists