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 . 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
Applications
Specifications (4A4-100)
See also
References
Notes
Bibliography
- Gunston, Bill. (1986) World Encyclopedia of Aero Engines. Patrick Stephens: Wellingborough. p. 57