F 11 Nyköping

F 11 Nyköping, Södermanlands Flygflottilj, Södermanland Air Force Wing, or simply "F 11", is a former Swedish Air Force wing with the main base located in south-east Sweden.

History of the airbase
The wing was set up outside Nyköping in 1940 as a long range reconnaissance wing with two squadrons of S 16B. After the war, the aircraft were replaced with J 9 from F 8 Barkarby and an additional squadron of B 3 from F 1 Hässlö.

In 1946, two additional squadrons of S 18 were added.

In 1948, F 11 became the sole Swedish operator of three squadrons of S 31 when the B 3 and J 9 became obsolete.

In 1953, J 28 jet fighters were used for one year to train pilots for the introduction of the S 29 in 1954.

The S 18 squadrons were replaced by the S 32 in 1958 and the S 29s by J 35s in 1964. These four squadrons served until the decommissioning of the wing in 1980.

Current use
The airfield was used as a cargo airport from 1984 and from 1997 serves as Stockholm-Skavsta Airport for international flights.