 Some changes were made from series 1 to 2, most notably a raised bow, redesigned torpedo tubes closed by hatches, and the addition of a pair of MAS-type 450 mm torpedo launchers at the rear of the hull.In August 1942, during Operation Pedestal (referenced in Italian sources as "Battaglia di Mezzo Agosto") two motor torpedo boats—"MS 16" and "MS 22"—sank, in a night action, the British light cruiser off Cap Bon.This 11,000-ton cruiser was the largest warship sunk by fast torpedo craft of any nation in the Second World War.