How a handful of biplanes ended the reign of the battleship at Taranto
On the night of 11 November 1940, the British Royal Navy launched a daring aerial torpedo strike against the Italian fleet at anchor. Using obsolete biplanes, they crippled Italy's naval power in a single stroke, forever changing maritime warfare and providing a blueprint for the attack on Pearl Harbor.
The Battle of Taranto, or Operation Judgement, saw 21 Fairey Swordfish biplanes from the carrier HMS Illustrious strike the Italian Regia Marina in their home harbour. Despite the water being only about 39 feet deep—far shallower than the 75 feet previously thought necessary for torpedo drops—the British succeeded by attaching wire drums to their torpedoes to prevent deep diving. This innovative tactic allowed them to bypass inadequate anti-torpedo nets that covered only a third of the required 12.8 kilometers of the harbour perimeter.
The results were devastating for the Italian fleet. Three battleships were hit, with the Conte di Cavour and Duilio forced to run aground to avoid sinking, while the Littorio suffered extensive flooding. The attack effectively halved the Italian capital ship strength in one night, forcing the remainder of the fleet to retreat to Naples. Admiral Andrew Cunningham, the British commander, hailed the Fleet Air Arm as the Navy's most devastating weapon, marking the definitive ascendancy of naval aviation over the traditional big-gun battleship.
The strategic implications rippled far beyond the Mediterranean. The raid served as a critical case study for the Imperial Japanese Navy, which sent officers to investigate the harbour's defences before planning the attack on Pearl Harbor. While the British operation was a tactical triumph, some historians argue it was a missed opportunity to deliver a knockout blow. Regardless, the defeat embarrassed the Italian military, hardened German attitudes toward their subordinate ally, and fundamentally altered the trajectory of naval doctrine for the remainder of the Second World War.
Source: Battle of Taranto
