
Built between 1951 and 1956, the Halland-class destroyers proved to be too large and expensive. Therefore, to complete the two planned destroyer flotillas, a cheaper project based on the previous Öland class was chosen. The lead ship, Östergötland, was built in Gothenburg. In 1961, together with destroyer Öland, she made a long trip through European waters, stopping at nine ports. In 1965, the destroyer was equipped with Robot-07 anti-aircraft missiles (the Swedish version of the British-made Sea Cats).