Chicago/Aurora Municipal Airport, opened in April 1966, serves as a key reliever airport for Chicago's O'Hare and Midway, located in Sugar Grove, Illinois, about 50 miles west of the city. Interestingly, it uses the FAA code ARR while its IATA code is AUZ, and it is home to the Air Classics Museum of Aviation. Spanning 1,100 acres, the airport features three runways and supports a bustling general aviation community, recording over 76,000 annual operations and housing nearly 200 aircraft. Two fixed-base operators, J.A. Air Center and Revv Aviation, provide services like fuel, maintenance, and flight training, while recent funding from the Rebuild Illinois program has helped upgrade its roadways and facilities. In a notable incident, a B-17 Flying Fortress named Liberty Belle crashed in a cornfield shortly after takeoff in 2011, though all seven people on board survived safely.