The submarine could also carry a diver in the nose rather than a magnetic mine.
Less than three months after the outbreak of war the Germans had come up with a rather unpleasant device - the magnetic mine.
One became stuck in a tank trap and another was knocked out by a magnetic mine.
"That demagnetized the whole ship so you didn't attract magnetic mines," he said.
They didn't need their flashlights to tell it wasn't a magnetic mine.
They who survived war played an active part for minesweeping of magnetic mines.
She struck a magnetic mine and sunk on 4 November.
Perhaps his most significant contribution was the design of an effective counter-measure to the German magnetic mines.
Hitler's 'secret weapon' of the time was the magnetic mine.
A degaussing station was built to provide protection for ships against magnetic mines.
Wörterbuch für Militärbegriffe