Incorporated 1922 at St Louis, Missouri, known originally as Ryan Airlines. Developed Ryan M-1 mailplane from which, in 1927, was derived Spirit of St Louis, built for Charles Lindbergh's New York-Paris flight; commercial development produced as Ryan Brougham.

Purchased Ryan Aircraft Co as B F (Ben Franklin) Mahoney Aircraft Co, later B F Mahoney-Ryan Aircraft Co, San Diego, in 1927.

 

1929: Ryan Aircraft Corp.

 

Company merged with Detroit Aircraft Corporation May 24, 1929.