SMS Ostfriesland

Survived

Type	Dreadnought battleship
Class	Helgoland
War	First World War
Main guns	12 × 12″ guns

Fought at Jutland and struck a mine on the way home. Handed to the United States after the war and sunk in Billy Mitchell's bombing trials in 1921.

For documentary purposes the German Federal Archive often retained the original image captions, which may be erroneous, biased, obsolete or politically extreme. Linienschiff "SMS Ostfriesland" Linienschiff "S.M.S. Ostfriesland" der Helgoland-Klasse auf See, Ansicht der Backbord-Seite Photo: UnknownUnknown, CC BY-SA 3.0 de · Wikimedia Commons

Armament and specifications

Armament

12 × 30.5 cm (12 in) SK L/50 guns
14 × 15 cm (5.9 in) SK L/45 guns
14 × 8.8 cm (3.5 in) SK L/45 guns
6 × 50 cm (19.7 in) torpedo tubes

Armour

Belt: 300 mm (11.8 in) KCA
Turrets: 300 mm KCA
Barbettes: 300 mm KCA
Deck: 63.5 mm (2.50 in) KCA

Builder	Kaiserliche Werft, Wilhelmshaven
Laid down	19 October 1908
Launched	30 September 1909
Commissioned	1 August 1911
Displacement	Normal: 22,808 t (22,448 long tons) Full load: 24,700 t (24,300 long tons)
Length	167.20 m (548 ft 7 in)
Speed	21.2 knots (39.3 km/h; 24.4 mph)
Complement	42 officers 1071 enlisted

As built, from the ship's Wikipedia article. Figures there may cover later refits too.

Career

Launched

30 September 1909

Battle of Jutland

Damaged

31 May – 1 June 1916

Mined on the way home

Fate

Survived

Sunk as a target by aircraft, 21 July 1921