Ottoman battleship Mesudiye

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Name: Mesudiye
Builder: Thames Iron Works
Laid down: 1872
Launched: 1874
Commissioned: December 1875
Fate: Sunk, 13 December 1914, by British submarine B-11
General characteristics
Class and type: Central-battery ironclad
Tonnage: 9,250
Speed: 16 kn (30 km/h; 18 mph)
Complement: 673
Armament: 2×240mm 12 x 152mm
14 x 76mm 10×57mm 2×47mm guns
Notes: rebuilt in Italy, 1903

The Mesudiye Zırhlı Firkateyn-i Hümayunu ("The Royal Armoured Frigate Mesudiye") was a central-battery ironclad of the Ottoman Navy, originally commissioned in 1875, and serving until sunk by a British submarine in 1914.


As originally constructed, the Mesudiye was one of a number of armoured warships ordered by Sultan Abdülaziz from Britain, Austria-Hungary and France. She was ordered from the Thames Iron Works in 1871, laid down in 1872, and launched in 1874. Designed by Edward James Reed, she was the largest casemate warship ever constructed and had wrought iron belt and casemate armour up to 12 in (300 mm) thick. She was commissioned in December 1875 following completion of her trials, and at the time was considered one of the most powerful warships in the world.[1]

In 1903 Mesudiye was sent to the Ansaldo shipyards in Genoa, Italy, for a complete rebuild. Her three masts were replaced with a single mast, and two turrets armed with Armstrong guns were fitted.

Balkan Wars

In the First Balkan War, Mesudiye participated in both naval battles with the Royal Hellenic Navy, at Elli on 16 December 1912 and at Lemnos on 18 January 1913. In both engagements, the Ottoman fleet was unable to break the Greek naval blockade of the Dardanelles. Mesudiye was not harmed in the first, but was damaged in the second.

World War I

At the beginning of World War I Mesudiye was ordered to anchor just south of the Dardanelles Narrows at Chanak, in Sarisiglar Bay as a floating battery to protect the minefields. Both the ship's captain, Besiktasli Arif Nebi, and several officers protested this order, but the opinions of the German naval advisors prevailed.

File:Dardanelle raid sinking the Mesudiye.JPG
Overview of the Dardanelle raid leading to the sinking of the Mesudiye


On 13 December 1914 the British submarine B-11 entered the Dardanelles, and torpedoed the Mesudiye from a range of 800 m (2,600 ft) exactly at noon, as the ship's crew gathered belowdecks for lunch. Lookouts saw the torpedo and B-11's periscope, and sounded the alarm, and the Mesudiye’s guns began to fire towards the point where the submarine had been sighted. The impact of the first torpedo caused the Mesudiye to heel severely. She capsized in 10 minutes, trapping most of the crew; however, as she was lying in shoal water, most of the hull was above the surface, so most of her crew were rescued by cutting through the hull. Thirty-seven men were killed in all, 10 officers and 27 men.

The Mesudiye’s guns were salvaged and mounted in a shore battery bearing her name, and later caused substantial damage to the French battleship Bouvet on 18 March 1915.



ja:メスディイェ (装甲艦) tr:Mesudiye (zırhlı)