In 1924 Alexander Film Co., producer of short movies, found OX-5 Swallow such asset that they entered aircraft business, Alexander Aircraft being formed Denver, April 1925. August 1925 produced Eaglerock, 3/4-seat biplane (OX-5) designed by Daniel Noonan, later assisted by Albert W. Mooney. There followed 455 of over 30 variations by 1928, when moved to Colorado Springs. Produced redesigned A-series Eaglerocks with Whirlwind, Salmson, Hispano, Siemens and Comet engines. Despite 'largest commercial aircraft factory in USA' failed 1931, becoming Aircraft Mechanics.