1937: formed as Air Cooled Motors; employees of the bankrupt H. H. Franklin Co. purchased the assets of the company; engines continued to be marketed under the Franklin name; 1945: Air Cooled Motors purchased by Republic; 1948: purchased by Tucker Industries; 1961: Aero Industries purchased Air Cooled Motors and renamed it the Franklin Engine Co. 1975: Government of Poland purchased the company and relocated production to Rzeszów, originally under the name PZL-Franklin, and later simply PZL-F