Tribune's unsuccessful effort against U-56 introduces a wider Royal Navy interest in submarines hunting submarines. That interest carried into the increasingly streamlined U- and V-class designs, with their greater emphasis on underwater performance. HMS Venturer, a development of the U class, eventually achieved the result the earlier boats sought by sinking another submarine while both vessels were submerged. It is thought to remain the only submarine to have achieved a successful submerged-versus-submerged kill. This links prewar hull-form research to a rare tactical achievement and treats streamlining as a practical combat feature.
Notable Point · 38:17-39:08
Streamlining led toward Venturer's submerged kill
British efforts to improve submerged performance culminated in HMS Venturer's unique underwater destruction of another submerged submarine.