Berlin Tegel Airport provided the impetus for Dan-Air to take over the failed carrier's charter contracts and to expand its own operations at Tegel. Dan-Air, one of Britain's foremost wholly private, independent airlines during the 1970s and 80s, eventually became the third-biggest operator at Tegel Airport, ahead of Air France. In addition to firmly establishing itself as the airport's and West Berlin's leading charter airline, it also operated scheduled services linking Tegel with Amsterdam Schiphol, Saarbrücken and London–Gatwick, its main operating base. By the time that airline was taken over by British Airways at the end of October 1992, it had served Tegel
Knox County Regional Airport operated by the City of Rockland until 1968. It was then turned over to Knox County and renamed "Knox County Regional Airport". Since that time, the airport has been developed, the runways expanded, and an Instrument Landing System (ILS) was installed. Knox County Regional Airport covers an area of 538 acres (218 ha) at an elevation of 56 feet (17 m) above mean sea level. It has two asphalt paved runways: 13/31 is 5,007 by 100 feet (1,526 x 30 m) and 3/21 is 4,000 by 100 feet (1,219 x 30 m). For the 12-month period ending July 31, 2010,