of of fuel oil which was intended to give a range of at a speed of , but they proved top-heavy in service and 30% of the fuel had to be retained as ballast low in the ship. The effective range proved to be only at 19 knots. The crew of the Type 34 class ships numbered 10 officers and 315 enlisted men, plus an additional four officers and 19 enlisted men if serving as a flotilla flagship. The Type 34s carried five SK C/34 guns in single mounts with gun shields, two each superimposed, fore and aft. The fifth gun was carried on top of the aft superstructure. The guns were numbered from one to five from front to rear. Their anti-aircraft armament consisted of four SK C/30 guns in a pair of twin mounts abreast the rear funnel and six C/30 guns in single mounts. The ships carried eight torpedo tubes in two power-operated mounts. A pair of reload torpedoes was provided for each mount. Leberecht Maass had four depth charge launchers mounted on the sides of her rear deckhouse, which was supplemented by six racks for individual depth charges on the sides of the stern, with either 32 or 64 charges carried. Mine rails could be fitted on the rear deck that had a maximum capacity of 60 mines. A system of passive hydrophones designated as 'GHG' (Gruppenhorchgerät) was fitted to detect submarines. Construction and career Z1 Leberecht Maass, named after Rear Admiral (Konteradmiral) Leberecht Maass, who was killed while commanding German forces in the Battle of Heligoland Bight in August 1914, was the first destroyer to be built in Germany since World War I. She was ordered on 7 July 1934 and laid down at Deutsche Werke, Kiel, on 10 October 1934 as yard number K232. The ship was launched on 18 August 1935 and completed on 14 January 1937, under the command of Lieutenant Commander (Korvettenkapitän) Friedrich T. Schmidt. As the first ship of her class to be completed, Leberecht Maass became the flagship of the Leader of Torpedo-boats (Führer der Torpedoboote (FdT)) on 1 May and spent much of her first year training in the eastern Baltic Sea, before making a port visit in Gothenburg, Sweden, in early April 1938. Upon her return, the ship was turned over to her builders to have her bow rebuilt to fix the large amount of water that