ANCIENT CRUISER OF THE ITALIAN ROYAL NAVY Dimensions: L = 96, H = 38 cm The Zara class was a class of heavy cruisers of the Royal Navy, used during the Second World War; the class consisted of four ships, Zara, Fiume, Pola and Gorizia. The Zara class was the evolution of the Trento class and belonged to that category of heavy 10000 t cruisers. defined by the Washington Naval Treaty of 1921. Among the Washington-type 10,000-ton heavy cruisers, the Zara-class cruisers are universally considered the most successful and most balanced in armor, armament and speed