1 quadruple Seacat SAM launcher replaced 3 - 40mm guns in 1960's
Notes
Ships of the class took part in a number of incidents and confrontations involving Soviet incursions into Swedish waters during the late 1970s and early 1980s, most notably the Whiskey on the rocks incident in 1981.
The Östergötland class were a class of destroyers built for the Swedish Navy in the late 1950s. They were smaller and less capable than the preceding Halland class and were decommissioned in 1982. The class were the last destroyers built by Sweden in the 20th century. They were sometimes referred to as Light destroyers.
The general layout of an Östergötland destroyer, prior to the class being modernised between 1963 and 1967Södermanland testing its newly installed Sea Cat launcher sometime during 1963. The linked CRBFD used a variant of the M4 radar manufactured by Hollandse Signaalapparaten.[2]
Notes
^In the case of the Södermanland, unlike her sister ship Hälsingland, Eriksbergs Mekaniska Verkstad just built the hull, with completion and fitting out done by Kockums Mekaniska Verkstads AB. The reasons for this are unclear, though it may possibly have been part of a work share agreement.
References
^Conway's All the World's Fighting Ships 1947-1995
