Cobb County Airport - McCollum Field - RYY is a public airport located 21 miles (34 km) northwest of the central business district of Atlanta, immediately south of the city of Kennesaw in Cobb County, Georgia, United States.
It is also designated as a weather station,although it does not operate between the hours of midnight and 6:00 a.m.
The airport is located on nearly 320 acres of land, has one runway which is 6,305 feet (1,921 m) long, and is east-west oriented, with headings of 089 and 269. Cobb Place is at the east end, with Cobb Parkway and old 41 intersecting McCollum Parkway on the west end.
The airfield sits at 1,040 feet (317 m) above mean sea level somewhat above average terrain for the area.
There are over 350 aircraft based at McCollum, most of them being single-engine. The airport has a control tower.
The airport has 358 aircraft based on it: 251 single engine, 55 multi-engine, 39 jet aircraft and 13 helicopters. 49 percent of operations are single engine and 49 percent are multi-engine. Only 1 percent of operations are air taxi. No major commercial airlines service Cobb County Airport, but there are two charter companies and two major fixed-base operators. Aerial tours are very popular at the airport, as the Appalachian Mountains are less than a 30-minute flight away.
McCollum Field is owned by Cobb County, operated by the County Department of Transportation characterizing it as a municipal airport. It is managed by a full-time, professional airport manager. The airport employs almost 185 people, and had an annual economic impact of more than $47 million to the local economy in 2002.