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Sunday 25 December 2016

American armoured cruiser USS Tennessee (ACR-10) 1903-1916 and Memphis 1916-1922

Pennsylvania-class

Tennessee-class

Part of the Tennessee-class consisting of the Tennessee, Washington, North Carolina and Montana, preceded by the Pennsylvania-class but never succeeded. There were none armoured cruisers further built as believed that an armoured cruiser became an obsolete design replaced by the battle cruiser concept like that of the British Invincible-class. Also referred to as Armored Cruiser No. 10. Building ordered on 1 July 1902, building awarded on 9 February 1903, laid down at William Cramp&Sons, Philadelphia, USA on 20 June 1903, launched by miss Annie K. Frazier on 3 December 1904, commissioned on 17 July 1906, renamed Memphis on 25 May 1916, wrecked in the harbour of Santo Domingo, Dominican Republic on 29 August 1916 and sold to A.H. Radetsky Iron and Metal Company, Denver, Colorado, USA be broken up on 17 January 1922. Not earlier as in 1938 was she complete broken up.

General technical specifications of this class. With a displacement of 14.730 (standard)-15.964 (full load) tons and as dimensions 153 (between perpendiculars)-153,75 (over all) x 22,2 x 7,6 metres or 502”-504’5” x 72’10” x 25”. The machinery consisted of 2 vertical triple steam engines and 16 Babcock&Whitecox boilers supplying 23.000 ihp allowing a speed of 22 (design) knots. Crew numbered 887 men. The armour consisted of a 7,6cm/3”-12,7cm/5”thick waterline belt, a 3,8cm/1.5”-10,2cm/4” thick deck with the conning tower and turrets protected by respectively 22,9cm/9” and 6,4cm/2.5”-22,9cm/9”. The armament consisted of 2x2-25,4cm/10” /40 Mark 3 guns, 16x1-15,2cm/6” /50 Mark 8 guns, 22x1-7,6cm/3” /50 guns, 12-3pd guns, 4-1pd guns, 2-7,6cm/3” field guns, 2-30cal machineguns, 6-30 cal automatic guns and 4-53,3cm/21” torpedo tubes. The machinery consisted of 2 vertical triple steam engines and 16 Babcock&Whitecox boilers supplying 23.000 ihp allowing a speed of 22 (design) knots. During a 4 hours trial was a speed of 22,16 knots with a horse power 25.892ihp achieved. During the 24 hours trial was a speed of 21,28 knots with a horsepower of 21.600ihp achieved.