Bulgarian Polar Research Vessel (ex-Stad Sleipner 1984-1990, Far Sleipnir 1990-2011, Iskatel 2011-2021) Sv. Sv. Kiril i Metodiy (RSV-421) 2021-

Varna, Bulgaria July 2023

Bulgaria-flagged, MMSI 207506400 and call sign LZBQ. Ceremoniously christened and commissioned into the Bulgarian Navy inventory on 27 July 2021. Owned by a consortium consisting of the Naval Academy, the St Kliment Ohridski University of Sofia and the Bulgarian Antarctic Institute. In February 2021 was started with the procedure for purchasing a research/survey vessel, As Iskatel Russia-flagged, homeport Murmansk, supply vessel, IMO 8112586, MMSI 273352240 and call sign UBTH9, owner/manager Subsea Survey Solution, Moscow, Russia. Built by Simek, Flekkefjord, Norway in 1984. Ex-Stad Sleipnir renamed January 1990 and Far Sleipnir renamed June 2011.