Jarlsberg Airsport Center is an airfield close to the city of Tønsberg, 90 km southwest of Oslo, coordinates 59 18 N 010 22 E. The airfield has two runways, with concrete and grass.
The field is operated by 5 clubs as a foundation: Tønsberg flying club, Tønsberg parashooting club, Tønsberg sailplane club, Tønsberg microlight Club, and Tønsberg model aircraft club all has the airfield as their home base.
The city of Tønsberg is in the county of Vestfold. Tønsberg is the oldest town in Norway. The first excavations for vikingships was done in Tønsberg.