| 14.06.1913: |
First unsuccessful attempt to launch the ship, but it got stuck on the shipyard. |
| 12.07.1913: |
Successful launch. |
| 27.07 - 30.07.1914: |
Although not commissioned yet, the Derfflinger
is part of the naval defenses of Kiel. |
| 01.09.1914: |
Part of the 1st Reconnaissance Group (1. Aufklärungsgeschwader) after commissioning. |
| 20.11.1914: |
First operational action, NW of Helgoland. |
| 16.12.1914: |
Operation J2: Coastal bombardment of Hartlepool. |
| 24.01.1915: |
Battle at the Doggerbank against British battlecruisers, Derfflinger
is hit once, but damages the British BC Lion
. |
| -14.02.1915: |
Repairs. |
| March - May 1915: |
Participation in several fleet actions in the North Sea. |
| 28.06.1915: |
Mayor turbine breakdown. |
| August 1915: |
Derfflinger
is used to test alternative courses to enter the Baltic Sea. |
| 05-06.03.1916: |
Operations at the Hoofoten. |
| 24.04.1916: |
Coastal bombardment of Yarmouth and Lowestoft. |
| 31.05.1916: |
Battle of Jutland: Derfflinger
sinks British battlecruisers Queen Mary
and Invincible
. The ship is badly
damaged (17 heavy and 4 medium hits) and returns to Wilhelmshaven with 3000 t water in the ship and 157 crew casualties. |
| -15.10.1916: |
Repairs at Howaldtswerke, Kiel. |
| 23.04.1918: |
Unsuccessful raid in the Northern North Sea. |
| 24.11.1918: |
Interned at Scapa Flow. |
| 21.06.1919: |
Scuttled by own crew. |
| 1939: |
Wreck raised. |
| -1946: |
Broken down at Rosyth. |
