Tonnage: 10,060 tonnes
Length: 115.7 m.
Beam: 19.5 m.
Draught: 7.6 m
Engines: 2 triple 3 cyl, 10,110 hp, Vulcan
Speed: 10 kts.
Armament: 4-280 mm L/40, Krupp |  2-280 mm L/35, Krupp | 6-105 mm L/35 quick firing guns, Krupp | 6-88 mm L/35 quick firing guns, Krupp | 3 torpedo tubes 450 mm, Schwartzkopf

• Launched on June 30, 1891.
• Commissioned by the German Navy on April 24, 1894, named Kurfürst Friedrich Wilhelm.
• Sold to the Turkish Navy in August 1910, and renamed Barbaros Hayreddin.
• Took part in the Balkan War.
• On February 18, 1915, Barbaros Hayreddin anchored off the coast in the Dardanelles to be used as a floating battery.
• On March 11, 1915, Barbaros Hayreddin returned to Istanbul.
• On April 25, 1915, Barbaros Hayreddin shelled the British landings in Gallipoli.
• On August 1915, while off Bolayır north of the Gallipoli peninsula, Barbaros Hayreddin was torpedoed by the British submarine E11. 21 officers and 237 sailors lost their lives. 51 officers and 347 sailors were rescued by Sivrihisar and Basra.