Torpex is described as about 50 percent more powerful pound for pound than TNT. That advantage matters in torpedoes because the weapon can gain destructive effect without enlarging the warhead space. Applying the same weapons to British destroyer and aircraft torpedo attacks from the beginning of the war raises a much more damaging counterfactual. That scenario depends on a production transition that had yet to happen, isolating explosive performance from the industrial delay discussed later.
Notable Point ยท 25:39-26:20
Torpex raises torpedo blast effect by half
Torpex's roughly fifty-percent advantage over TNT lets an unchanged torpedo warhead deliver a much larger blast effect.