 Kaiser Barbarossa served with the German navy from her commissioning in 1901 , though her active career was limited by two lengthy stays in dry @-@ dock . The first was for repairs following damage to her rudder in 1903 , which lasted until early 1905 , and the second for a major modernization , which began immediately after the conclusion of repair work in 1905 and lasted until late 1907 . She returned to service for another two years , before being decommissioned in 1909 and placed in the reserve division . She continued to participate in fleet training exercises for the next three years . 
