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Zürich Airport (LSZH), Switzerland's principal international gateway, lies some nine kilometres north of the city centre amid the municipalities of Kloten, Rümlang, Oberglatt, Winkel and Opfikon in the canton of Zurich. It is a fully controlled, high-density commercial hub with three long paved runways, extensive radar and approach services, and instrument approaches on several runway directions, making it a demanding but rewarding destination for the simulator pilot flying under IFR or heavy VFR traffic conditions.
Zürich Airport, known locally as Flughafen Zürich or historically as Kloten Airport, is the largest international airport in Switzerland and the principal hub of Swiss International Air Lines. Operated by Flughafen Zürich AG, it serves the Zurich metropolitan area, Liechtenstein and parts of Vorarlberg in Austria. For the simulator pilot it offers a classic big-airport experience: three substantial hard runways, a dense multi-sector radar and approach environment, and full ILS coverage on several approach directions, all set against the backdrop of the rolling countryside north of Zurich.
The airport sits within controlled airspace nine kilometres north of central Zurich, spread across the municipalities of Kloten, Rümlang, Oberglatt, Winkel and Opfikon in the canton of Zurich. As Switzerland's busiest airport it is served by a comprehensive approach and radar structure, with dedicated Terminal, Approach (including a separate Final and East sector) and multiple Radar sectors (North, East, West and M1 through M6) managing traffic converging on the field.
Zürich has three physical hard-surfaced runways, all lit. Runway 16/34 is the longest, with runway 16 measuring 12,100 feet and offering an ILS approach, while runway 34 measures 10,611 feet and is also equipped with ILS. Runway 14/32 provides 10,294 feet on runway 14, with ILS, against 10,800 feet on runway 32, which has no ILS listed. Runway 10/28 is the shortest pairing, with both directions at 8,155 feet; runway 28 is equipped with ILS while runway 10 is not. Field elevation is 1,398 feet.
Air traffic control at Zürich is provided across a full suite of frequencies. Clearance Delivery operates on 121.925 MHz, Ground on 121.902 MHz, and Tower on 118.1 MHz. ATIS is broadcast on 125.725 MHz. Departure works on 125.95 MHz, with Approach on 125.325 MHz and a separate Approach East sector on 135.225 MHz; a Terminal (TMA) frequency is available on 127.755 MHz. Radar coverage is split into several sectors: North on 136.155 MHz, East on 133.9 MHz, West on 135.68 MHz, and sectors M1 through M6 on 133.05, 133.405, 132.815, 134.6, 132.833 and 133.69 MHz respectively. Apron control is divided into North (121.855 MHz) and South (121.755 MHz) frequencies. The airport is equipped with ILS on runways 16, 34, 14 and 28.
Before Zürich Airport existed, mixed civil and military air traffic in the Zurich area was concentrated at Dübendorf airfield, northeast of the city, which from 1919 was home to Ad Astra Aero and, from 1932, Swissair. The first regular international flight from the area began on 1 June 1922, an Ad Astra service to Fürth in Germany. The outbreak of the Second World War forced the suspension of civil air traffic in 1939, though Swissair resumed a modest scheduled service from September 1940. As Dübendorf proved inadequate for a major commercial airport, the canton of Zurich commissioned a study in March 1943 that recommended a new civil airport on moorland between Kloten and Oberglatt, rather than expanding Dübendorf. A series of increasingly cost-constrained plans followed, from the 472-hectare Project I of December 1943 through Projects II and III, the latter costing CHF 54.4 million over 215 hectares while still meeting the requirements of an intercontinental airport. The Zurich project won federal backing over a rival scheme near Bern, and in December 1944 the responsible Federal Councillor, Enrico Celio, formally supported Zurich-Kloten. Switzerland's federal parliament confirmed Zurich as the site of the country's major airport in 1945, and 655 hectares of the former Kloten-Bülach Artillery Garrison passed to the canton of Zurich. Construction began in 1946 after cantonal voters approved a CHF 36.8 million building loan by a large majority in a May 1946 referendum. The airport opened on 14 June 1948. It was later privatised, with the Parliament of the canton of Zurich approving the change in 1999 and Flughafen Zürich AG, trading as "Unique" from 2000 to 2010, taking over as operator.
Zürich Airport remains Switzerland's principal international gateway and the main hub for Swiss International Air Lines, as well as an operating base for Edelweiss Air and Condor, and a hub for Chair Airlines and Helvetic Airways. It is owned and operated by Flughafen Zürich AG, a company listed on the SIX Swiss Exchange, with the canton of Zurich and the city of Zurich among its principal shareholders. As a large, fully controlled commercial hub it operates with round-the-clock air traffic control services and a dense multi-sector radar and approach structure; visiting simulator pilots should expect standard procedures for a major international airport rather than informal general aviation access.
