Frasca International, Inc., is a United States manufacturer of flight simulation training devices, with over 2600 training devices delivered in approximately 70 countries throughout the world. Now based in Urbana, Illinois, Frasca International was founded in Champaign, Illinois in 1958 by Rudy Frasca. Frasca flight simulators are used in all segments of the aviation industry, including their extensive use in many prominent college aviation programs, including Purdue University, Indiana State University, Embry-Riddle Aeronautical University, University of North Dakota, Louisiana Tech University, University of Illinois, and Western Michigan University. In 1949, Rudy Frasca joined the United States Navy, where he first experienced flight simulation as a Link Trainer instructor. Following his service, and a period of research at the University of Illinois Institute of Aviation, Frasca founded Frasca Aviation (later renamed to Frasca International) in 1958. All early Frasca training devices used mechanical computers exclusively. After working out of various locations for several years (including his home garage), Frasca established a permanent manufacturing plant in downtown Champaign, IL. In the late 1970s, Frasca devices were converted to use analog electronic computers, allowing for devices that were more simple and cost-effective to manufacture, operate, and maintain. The electronic transition began a period of rapid technological development, culminating in the transition to a digital, PC-based simulation architecture in 1983.