Collegedale Municipal Airport is a city owned, public use airport located two nautical miles (4 km) southeast of the central business district of the Collegedale, a city in Hamilton County, Tennessee, United States.Collegedale Municipal is one of the busiest general aviation airports in the state of Tennessee with an average of 120 aircraft stationed there. It won the Tennessee Aeronautics Commission's "Airport of the Year" award in 2003. The airport does not provide scheduled commercial service. However, charter service is provided by Aviation Specialists, Inc., a private company located at the airport, that offers flight instruction and a banner towing operation.This airport is assigned a three-letter location identifier of FGU by the Federal Aviation Administration, but it does not have an International Air Transport Association (IATA) airport code (the IATA assigned FGU to Fangatau Airport in French Polynesia).HistoryBegun as a flying club in 1965 by pilot and mechanic John Linn and Ellsworth McKee—son of the founders of the McKee Foods Corporation, the Collegedale Airport was originally a 1200ft grass strip on a farm. It was purchased by pilot-entrepreneur Aubrey Kinzer in 1969 and turned into a commercial venture with a flight school, rental aircraft, and aircraft maintenance. In 1972, the City of Collegedale obtained the property, and over the years the asphalt paved runway has been extended to 4,700 feet (1400 m) from its nominal 3,500-foot (1150 m) length and widened to 75 feet (23 m) with a parallel taxiway. In 1995, the airport was rededicated and renamed Linn Field in honor of John Linn. Renovations and additions to the terminal, lobby, and Fixed-Base Operations (FBO) office were completed in 2003.