Franklin O-225
The Franklin O-225 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. The power output was between and depending on the version.
Variants
;4A4-75: at 1,950 rpm;4A4-85: at 2,200 rpm
;4A4-100: at 2,550 rpm
;4A-225: at 2,800 rpm