was the most suitable, based on traffic, military and financial considerations. Several locations were considered. Kongsgårdbakken was selected, costing 2 million Norwegian krone (NOK) less than Kjevik. The municipality and the state formalized construction in April 1936, where the former would provide the land and the construction costs of NOK 2.4 million would be split. Construction commenced soon afterwards. Meanwhile, a group started looking at Kjevik as a suitable site, led by aviator Bernt Balchen, industrialist Rolf Petersen and Lawyer Hartmann. They presented detailed plans and agreed prices for purchase of lands. Based on this Kristiansand Municipal Council accepted on 5 August 1936 to reconsider Kjevik. Kjevik was passed in the council on 30 September 1937 with 34 against 26 votes. Construction commenced in November and was contracted to Høyer-Ellefsen. The same year the Norwegian Army Air Service used the fields at Kjevik for training. The airport originally consisted of a concrete runway connected to the apron with a wide taxiway. A small, wooden terminal building was built of a shed and a nearby residential house was used as a restaurant. Seaplanes were served with a floating dock and a slipway. Kjevik opened on 1 June 1939, the same day as Oslo Airport, Fornebu. The first aircraft to land was a Douglas DC-2 of KLM. They started an international route from Oslo via Kristiansand to Amsterdam, while Danish Air Lines operated to Copenhagen. DNL opened a domestic seaplane route from Oslo via Kristiansand to Stavanger Airport, Sola. Second World War Kjevik was captured by the Luftwaffe during the German invasion on 9 April 1940. The first aircraft landed at Kjevik as an emergency landing on the first day of the invasion. Later it was used by Junkers Ju 52 transport aircraft, flying in troops. From 11 April a squadron of Messerschmitt Bf 109s were stationed at Kjevik. Luftwaffe immediately started upgrading the aerodrome. They began by removing a hill at the east end of the runway, followed by an extension of the runway. Tveit was transformed with military structures built throughout the village. In the east a minefield was laid and several fuel tanks were built around the airfield. Two large hangars were built, along with a large number of sheds. In the course of the war the runway was extended to . The German military planned a large expansion of the airport from 1945, which would have included new