During the war, some Do 23s were used as minesweepers, known as Minensuch — literally, "mine-search" aircraft in German — and fitted with a current-carrying degaussing ring under the airframe to create a magnetic field that triggered submerged naval mines. These aircraft were usually given an -"MS" suffix to designate them, as had been done with the similarly equipped Bv 138 MS or Ju 52MS aircraft.
