Swordfish and torpedo evolve as one weapon system

The Royal Navy treated the torpedo and aircraft as a single delivery problem, refining both weapon behavior and airframe handling. Multiple torpedo-bomber types and repeated weapon trials placed reliable hits above headline speed or warhead size. A tension wire could control the torpedo's attitude for shallow-water attack, while flares silhouetted a harbor target from behind and made the approaching aircraft harder to see. Aircrew had to deliver the weapon at the correct speed and altitude in darkness, turning engineering reliability into a demanding training requirement. The Swordfish embodied lessons accumulated from earlier aircraft such as the Blackburn Dart and made a carefully rehearsed night attack like Taranto possible.