British boffins hit back at the mine threat by fitting the hulls of most large British ships with degaussing cable
. This greatly reduced the threat from magnetic mines.
announced that it had successfully demonstrated a full-scale HTS-based degaussing cable
. Its laboratory setup uses a gaseous helium-cooled 40-meter bismuth calcium copper oxide HTS cable to produce 4100 amp-turns, a magnetic flux that is comparable to the existing copper-based degaussing cables
used in military ships.
Like himself, my father was a discharged regular soldier doing whatever work he could get, which during the war included the back-breaking labour of fitting degaussing cables
around ships to repel magnetic mines.