launched 1847 : armoured corvette, launched 1872 : 5,700 ton protected cruiser, launched 1898 (auxiliary cruiser): 19,200 ton unique auxiliary merchant cruiser Hansa (1957): minesweeper : minelayer Harz (1953): tanker Harz: (H31): supply ship Havel (1919): tender Havelland (H51): supply ship : gunboat, launched 1860 : gunboat, launched 1881 Hay (1907): artillery tender and training vessel Hecht (1917): experimental craft : Type 240 submarine, former Kriegsmarine : 3,700 ton , launched 1892 Heimdall: training craft Heinrich Dorrenbach (711): missile boat Heinz Kapelle (823): torpedo boat Heinz Kapelle (811): torpedo boat Heinz Roggenkamp (1952): experimental craft : schooner, launched 1853 : 2,000 ton unique aviso, launched 1895 Hela (1919): fleet tender Hela (1938): fleet tender (battleship): 23,000 ton , launched 1909 : (Type 720) tug, decommissioned 1997 Heppens: harbour tug; Neuende-class Herbert Balzer (825): torpedo boat Herbert Norkus (1939): sailing school ship Herkules (1960): minesweeper : Type 1936 destroyer : Type 1934A destroyer Hermann von Helmholtz (1943): experimental craft Hermann von Wissmann (1940): tender : (Type 142) fast attack craft, commissioned 1962—1983 : (Type 143A) fast attack craft : captured Greek destroyer Vasilefs Georgios : submarine chaser, launched 1960 : (Type 332) minehunter : frigate, launched 1864 : 5,700 ton protected cruiser, launched 1897 Hertha (1961): minesweeper (battleship): 13,000 ton , launched 1903 : (Type 101A) destroyer, decommissioned : (Type 124) frigate, commissioned 2006 Hettstadt (315): minesweeper Hiddensee: Project 35 tanker Hiddensee: corvette; Tarantul-I-class : 3,700 ton , possibly not completed Hildebrand (1921): training craft Hille (1917): minesweeper tender : 27,000 ton , launched 1915 : frigate, former Royal Navy , commissioned 1959 to 1964 Hohenzollern (1876): imperial yacht Hohenzollern (1892): imperial yacht Hohenzollern (1914): imperial yacht Holnis (1965): minesweeper : (Type 332) minehunter Horst Wessel: Sail training ship, launched 1936, became United States Coast Guard Hoyerswerda: landing craft Hoyerswerda (611): landing craft Hugin (1917): training craft : Nasty class (Type 152) fast attack craft, commissioned 1960 to 1973 Hugo Ecken (A114): air control vessel Hugo Zeye' (1940): torpedo training vessel : armoured gunboat, launched 1881 Hummel (1940): escort vessel : gunboat, launched 1860 : gunboat, launched 1878 : (Type 142) fast attack craft, commissioned 1963—1984 : (Type 143A) fast attack craft Hydrograph: survey vessel I Ida (1859): armed steam ship Ill (1928): supply ship Ilmenau: minesweeper : gunboat (gunboat): , launched 4 August 1898, commissioned 1 December 1898 to 28 August 1914 Iltis (1905): auxiliary cruiser Iltis (1927): torpedo boat