In the 1860s and 1870s, the German navy had three elderly ships that were used to train gunners for the fleet: , , and ; these ships were of increasingly little use, as their wooden hulls were ageing and the types of guns fitted were shifting into obsolescence. In addition, they had insufficient accommodations for the crew, instructional staff, and trainees. As a result, the navy realized by the mid-1870s that a new, purpose-built, iron-hulled gunnery training ship would be required, with design work for the new vessel being done in 1876. Since the ship would not be expected to be used in combat, her speed would not need to be high, and she would carry no armor protection. Her resemblance to contemporary broadside ironclad warships led to her being nicknamed the "rubber battleship". She nevertheless proved to be quite effective as a training ship.
