Prinz Heinrich
Prinz-Adalbert-class
Roon-class
Laid down with the contract name Ersatz König Wilhelm by Blohm&Voss, Hamburg, Germany with yard number 155 in 1901, launched on 21 June 1902, commissioned on 12 December 1903 and lost when she hit Russian mines off Memel on the position 55°41 north and 20°11' east on 17 November 1914. After her crew safely abandoned she capsized and sunk. Building costs 15.665.000 German Goldmarks. Of the Prinz Adalbert-class consisting of the Prinz Adalbert and Friedrich Carl. Preceded by the Prinz Heinrich and succeeded by the Roon-class.
General technical specifications of this class. Displacement 9.087 (normal)-9.875 (full load) tons and as dimensions 124,9 (waterline)-126,59 (over all) x 19,61 x 7,8 metres or 410-415.33 x 64.33 x 25.5 feet. Hull was built up from transverse and longitudinal steel made frames connect with the hull plates by riveting. Divided in 14 watertight compartments and with a double bottom over 60% of the hull length. Fitted out with 3-3 cylinder vertical triple expansion steam engines and 14 Dürr boilers. Horsepower 17.o00 ihp (design), a speed of 20,4 (actual)-20,5 (design) knots and with a coal bunker capacity of 750 (design)-1.630 (maximum) and a speed of 12 knots a range of 5.080 nautical miles. The armament consisted of 2x2-21cm/8.3” L/40 quick firing guns, 10-15cm/5.9” L/40 quick firing guns, 12-8,8cm l/35 quick firing guns and 4-45cm/18” torpedo tubes (bow, stern, broadsides). The armour was Krupp steel made consisting of a belt with a thickness of 8cm/4.1” (end)-10cm/3.9” (centre) backed by 5cm/2.0” thick teak, 4-8cm thick armoured deck, main gun turrets protected by 3 (roofs)-15cm/5.9” (sides), forward conning tower by 3cm/1.2” (roofs)-15cm/5.9” (sides), aft conning tower 2cm/0.79” and casemated guns and secondary armament by 15cm.
