The MBoot 43 was the enlarged successor of the mine hunter type MBoot 40. To speed up the construction, those mine hunter were not build in the conventional way anymore, but by separate pre-fabricated sections which were only put together in the shipyard (like the Type XXI submarine).
Although the primary objective for these vessels was mine hunting, they could also be equipped with depth charges and used as submarine hunters, some were also used as torpedo training ships and had two torpedo tubes installed.
Like their predecessors, the MBoot 43 had coal fired steam engines, which made those vessels easier operational in the last years of the war.
Over 160 ships of the MBoot 43 class were ordered from 1942 on, but only 17 were completed until the end of the war. All but one survived the war and were taken over by the allies, some of them serving until the late 1960s.