High Quality Content by WIKIPEDIA articles! The Roon class was a pair of armored cruisers built for the German Imperial Navy after the turn of the 20th century. The class comprised Roon and Yorck, which closely resembled the earlier Prinz Adalbert class ships, but incorporated slight incremental improvements. The ships were easily distinguished from their predecessors by the addition of a fourth funnel. Like all of the armored cruisers built by Germany, they were intended to serve as station ships in Germany`s overseas possessions. The ships did not compare well with their British rivals.