SMS Seydlitz
SMS Derfflinger and Lützow
SMS Hindenburg
SMS Mackensen-class
Of the Derfflinger-class, consisting of the Derfflinger, Lützow and the Hindenburg with a modernized design, preceded by the Seydlitz and succeeded by the never built Mackensen-class. Building ordered under 1912-1913 Naval Program, laid down by Blohm&Voss, Hamburg, Germany with yard number 213on 30 March 1912, launching planned on 14 June 1913 but failed when wooden sledges jammed, launched on 17 July 1913, commissioned on 1 September 1914, scuttled at Scapa Flow, Orkney Isles, Scotland on 21 June 1919, wreck salvaged in 1939, anchored in capsized condition off the island of Risa, sent to Faslane Port in 1946 where the breaking was completed in 1948. Nicknamed Iron Dog. Building costs 56 million Mark.
Displacement 26.600 (normal load)-31.2000 (full load) tons and as dimensions 210 (at waterline)- 210,40 (over all) x 29 x 9,20 metres or 689-.2-697.2 x 95.2 x 30.2 feet. The machinery consisted of 2 sets marine turbines, 14 coal-fuelled and 8 oil-fuelled boilers delivering 62.138 (design)-75.586 (trials) ship allowing a speed of 25,5 (trials)-26.5 (design) knots and with a speed of 14 knots a range of 5.600 nautical miles. Crew numbered 1.122 men (included 44 officers). Armour consisted of a 10-30cm/3,9-11.8” thick belt with the gun turrets and conning tower protected by respectively 27cm/11” and 30cm/12”. The armament consisted of 4x2-30,5cm/12” L.50 quick firing guns, 12x1-15cm/5.9” L/45 quick firing guns, 12x1-8.8cm/3.5” /45 guns (after 1916 just 2 left) and 4-50cm/19/7” torpedo tubes.
