The Sleipner class was a series of corvettes ordered as part of the Royal Norwegian Navy's 1960 fleet plan.

[1] It was intended to build five ships of the class, but because of economic problems only two were built; Sleipner and Æger.

[2] Sleipner was built by Nylands Mekaniske Verksted, Oslo, and Æger by Aker Mekaniske Verksted, Oslo, and handed over to the Royal Norwegian Navy between 1965 and 1967.

[3] The ships were armed with an American 3 in (76.2 mm) gun forward and a Bofors 40 mm gun aft, with a Terne III anti-submarine rocket launcher ahead of the 40 mm gun.

[2][4] They were again modernised between 1988 and 1989, with new sonar and gun fire control systems fitted.