Editing Oslo Airport, Gardermoen (section)

===Military and secondary===
[[File:Soldiers at Gardermoen, 1904.jpg|thumb|Gardermoen in 1904, while it was still an army camp]]
The Norwegian army started using Gardermoen as a camp in 1740, although it was called '''Fredericksfeldt''' until 1788. It was first used by the [[cavalry]], then by the [[dragoon]]s and in 1789 by the riding marines.<!--Ridende Jegerkorps--> The base was also taken into use by the infantry from 1834 and by the artillery from 1860. Tents were solely used until 1860, when the first barracks and stalls were taken into use. Insulated buildings were built around 1900, allowing the camp to be used year-round. By 1925, the base had eleven camps and groups of buildings.<ref name="bredal100">Bredal, 1998: 100</ref> The first flight at Gardermoen happened in 1912, and Gardermoen became a station for military flights.<ref>Bredal, 1998: 13</ref>

During the [[occupation of Norway by Nazi Germany]], the ''[[Luftwaffe]]'' took over Gardermoen, and built the first proper airport facilities with hangars and two crossing runways, both {{convert|2000|m}} long. After [[World War II]], the airport was taken over by the Norwegian Air Force and made the main air station. Three fighter and one transport squadron were stationed at Gardermoen.<ref name="bredal100" />

[[Braathens ASA|Braathens SAFE]] established their technical base at the airport in 1946, but left two years later. Gardermoen also became the reserve airport for Oslo Airport, Fornebu, when the latter was closed due to fog. From 1946 to 1952, when a longer runway was built at Fornebu, all intercontinental traffic was moved to Gardermoen. Gardermoen grew up as a training field for the commercial airlines and as local airport for [[general aviation]]. Some commercial traffic returned again in 1960, when SAS received its first [[Sud Aviation Caravelle]] jet aircraft, that could not use the runway at Fornebu until it was extended again in 1962. SAS introduced a direct flight to New York in 1962, but it was quickly terminated.<ref>Bredal, 1998: 14–16</ref>

In 1972, capacity restraints forced the authorities to move all charter traffic from Fornebu to Gardermoen. However, SAS and Braathens SAFE were allowed to keep their charter services from Fornebu, so they would not have to operate from two bases.<ref>Wisting, 1989: 63–65</ref> A former hangar was converted to a terminal building and in 1974 passenger numbers were at 269,000 per year. In 1978, SAS started a weekly flight to New York. In 1983, further restrictions were enforced, and also SAS and Braathens SAFE had to move their charter operations to Gardermoen, increasing passenger numbers that year to 750,000. Several expansions of runway were made after the war, and by the 1985-extension the north–south runway was {{convert|3050|m}}.<ref>Bredal, 1998: 16</ref>