Commanders-in-Chief of the Fleet (1914–1918) (in German Flottenkommandant) Anton Haus, Adm./GAdm (July 1914–February 1917) Maximilian Njegovan, Adm. (February 1917–February 1918) Miklós Horthy, KAdm./VAdm. (February 1918–November 1918) Heads of the Naval Section at the War Ministry (in German Chef der Marinesektion at the Kriegsministerium) Ludwig von Fautz, VAdm. (March 1865–April 1868) Wilhelm von Tegetthoff, VAdm.(March 1868–April 1871) Friedrich von Pöck, Adm. (October 1872–November 1883) Maximilian Daublebsky von Sterneck, Adm. (November 1883–December 1897) Hermann von Spaun, Adm. (December 1897–October 1904) Rudolf Montecuccoli, Adm. (October 1904–February 1913) Anton Haus, Adm./GAdm. (February 1913–February 1917) Karl Kailer von Kaltenfels, VAdm. (February 1917–April 1917) Maximilian Njegovan, Adm. (April 1917–February 1918) Franz von Holub, VAdm. (February 1918–November 1918) Constructors General (in German Generalschiffbauingenieur) Josef von Romako A. Waldvogel Siegfried Popper, (1904–April 1907) Franz Pitzinger, (November 1914–1918) Naval ensign Until Emperor Joseph II authorized a naval ensign on 20 March 1786, Austrian naval vessels used the yellow and black imperial flag. The flag, formally adopted as Marineflagge (naval ensign) was based on the colours of the Archduchy of Austria. It served as the official flag also after the Ausgleich in 1867, when the Austrian navy became the Austro-Hungarian Navy. During World War I, Emperor Franz Joseph approved of a new design, which also contained the Hungarian arms. This flag, officially instituted in 1915, was however little used, and ships continued displaying the old Ensign until the end of the war. Photographs of Austro-Hungarian ships flying the post-1915 form of the Naval Ensign are therefore relatively rare. In popular culture British author John Biggins wrote a series of four serio-comic historical novels concerning the Austro-Hungarian Navy and a fictional hero named Ottokar Prohaska, although genuinely historical individuals, such as Georg Ludwig von Trapp and Archduke Franz Ferdinand of Austria make appearances. Published by McBooks Press, the novels are: A Sailor of Austria: In Which, Without Really Intending to, Otto Prohaska Becomes Official War Hero No. 27 of the Habsburg Empire The Emperor's Coloured Coat: In Which Otto Prohaska, Hero of the Habsburg Empire, Has an Interesting Time While Not Quite Managing to Avert the First World War The Two-Headed Eagle: In Which Otto Prohaska Takes a Break as the Habsburg Empire's Leading U-boat Ace and Does Something Even More Thanklessly Dangerous Tomorrow the World: In which Cadet Otto Prohaska Carries the Habsburg Empire's Civilizing Mission to the Entirely Unreceptive Peoples of Africa and Oceania See also The Adriatic Campaign