SMS Gneisenau
SMS "Gneisenau" was an armored cruiser of the German navy, part of the two-ship . She was named after August von Gneisenau, a Prussian general of the Napoleonic Wars. The ship was laid down in 1904 at the AG Weser dockyard in Bremen, launched in June 1906, and completed in March 1908, at a cost of over 19 million goldmarks. She was armed with a main battery of eight guns, had a top speed of , and displaced at full combat load.
German battleship Gneisenau
By early 1943, the ship had been sufficiently repaired to begin the conversion process, but Hitler, angered by the failure of German surface raiders at the Battle of the Barents Sea in December 1942 ordered the cessation of all work. "Gneisenau" was disarmed and her 28 cm and 15 cm gun turrets were used in shore batteries. Turret Caesar was installed in Austrått Fort in Trondheim as the coastal battery "Orlandet".