| 1914: |
Part of the 1rd Battleship Squadron at the outbreak of the war. |
| 05-06.03.1916: |
Operations at the Hoofoten. |
| 24.04.1916: |
Covers battlecruiser coastal bombardment of Yarmouth and Lowestoft. |
| 31.05.1916: |
Battle of Jutland: Ostfriesland
stays undamaged |
| 01.06.1916: |
On its way back to Germany, the battleship is hit by a mine. |
| -26.07.1916: |
Repairs at Wilhelmshaven. |
| 18-19.08.1916: |
Unsuccessful North Sea Raid. |
| 18-20.10.1916: |
Unsuccessful North Sea Raid. |
| 23.04.1918: |
Unsuccessful raid in the northern North Sea at the area of Stavanger. |
| 05.11.1919: |
Decommissioned. |
| 07.04.1919: |
Taken over by the USA and transferred to the American East Coast. |
| 20.07.1921: |
Used as a target ship for bombing attacks near Cape Henry, Virginia. 13 of the 69 bombs dropped hit, bomb size varies from 115 to 1000 kg. |
| 21.07.1921: |
Hit by three 500 kg bombs (of 11 bombs dropped), which cause floddings. After 4 hours the ships is down by 1 meters at the stern and 0.3 meters at the bow. A second wave of six 1000 kg bombs archive no direct hits, but caused by a near miss the ship sinks after 10 minutes. Ostfriesland
is the first battleship sunk by bombs only. |
