Could the United States have obtained British torpedoes early in the Second World War and made them work in American submarines?
Short answerYes in an emergency, though adapting fire-control and weapon interfaces would require local engineering and discreet command cooperation.
NotesDifferent fire-control computers would have complicated the use of British torpedoes in American submarines. Under urgent operational pressure, engineers and senior weapons ratings could probably have worked out the necessary adaptations. The imagined exchange would remain with local flotilla commanders or their chiefs of staff, avoiding higher-level scrutiny from London, Washington and the Bureau of Ordnance. Even an informal conversation between senior flag officers could attract attention through their staffs. The joking exchange of torpedoes for ice cream illustrates this proposed local workaround, rather than documenting an actual transfer. British and American equipment offered complementary advantages because finite interwar budgets had concentrated development in different fields.