Which infamous military product recall during WWII involved a torpedo that frequently circled back to strike the launching submarine, earning it the nickname 'circular run' among US submariners?

Throughout military history, there have been numerous instances where equipment and weapons systems needed to be recalled due to design flaws, manufacturing defects, or unexpected performance issues. These product recalls not only affected military readiness but sometimes changed the course of conflicts and influenced military procurement practices. This trivia question explores one of the most significant military product recalls that had far-reaching consequences.

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• The Mark 14 torpedo (1941-1943)
• The M1 Garand rifle (1940)
• The P-51 Mustang oxygen system (1942)
• The M4 Sherman tank fuel system (1943)

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