Would an early American homing torpedo make much difference if available at the start of the Second World War?
Short answerIts reliable detonator alone would improve on early Mark 13 and Mark 14 performance, but it would not by itself transform the war's overall outcome.
NotesThe weapon would offer immediate value because its detonator worked more reliably than the troubled American aerial and submarine torpedoes of the period. Homing guidance would add further utility in individual attacks. The answer still rejects it as a single war-changing device because the wider Allied and Axis balance ran much deeper.