article_snippet.sent: The idea of using a human torpedo to attach explosive charges had been around since the end of World War One.
article_snippet.sent: Churchill’s version was attached by frogmen who used the most powerful magnet in the world at the time to attach around 4.5lbs (two kilograms) of explosive to an enemy ship, capable of punching a large hole in the hull.
article_snippet.sent: Divers would carry the limpet mines underwater and attach Divers to ships, causing devastating damage when Divers exploded.
article_snippet.sent: Divers were used in the war to devastating effect.
article_snippet.sent: Seven Japanese ships were sunk or disabled by Allied commandos alone, using limpet mines in Singapore Harbour, 1943.
article_snippet.sent: Churchill’s 'human torpedo' used the most powerful magnet in the world at the time to attach around 4.5lbs (two kilograms) of explosive to an enemy ship, capable of punching a large hole in the hull .