Pennsylvania-class cruiser

Color-tinted postal card of USS Pennsylvania, circa 1905–1908
Class overview
Operators:	United States Navy
Succeeded by:	Tennessee class
Built:	1901–1908
In commission:	1905–1927
Completed:	6
Lost:	1
General characteristics
Displacement:	13,680 tons
Length:	504 ft (153.6 m)
Beam:	69 ft 6 in (21.2 m)
Draft:	26 ft 1 in (7.95 m)
Propulsion:	2 × vertical, inverted, triple expansion engines 23,000 ihp 2 screws
Speed:	22 knots (25 mph; 41 km/h)
Complement:	830
Armament:	4 × 8 in (203 mm)/40 caliber 14 × 6 in (152 mm)/50 18 × 3 in (76 mm)/50 12 × 3 pounders 2 × 1 pounders 2 × 18 in (457 mm) torpedo tubes
Armor:	Belt: 6 in (152 mm) Turrets: 6.5 in (165 mm) Deck: 4 in (102 mm) Conning Tower: 9 in (229 mm)

The Pennsylvania class of six armored cruisers were built by the United States Navy between 1901 and 1908. All six were later renamed for cities, to make the state names available for new battleships. All of them served during World War I, with the California (then San Diego) being the only ship of its class to be lost. The remaining five armored cruisers were scrapped between 1930 and 1931 in accordance with the London Naval Treaty.

Ships of the class

Original Name	Commission Date	Renamed	Rename Date	Reclassed	Reclassed Date
USS Pennsylvania (ACR-4)	9 March 1905	Pittsburgh (ACR-4)	27 August 1912	Pittsburgh (CA-4)	17 July 1920
USS West Virginia (ACR-5)	23 February 1905	Huntington (ACR-5)	11 November 1916	Huntington (CA-5)	17 July 1920
USS California (ACR-6)	1 August 1907	San Diego (ACR-6)	1 September 1914	sunk before reclassified	N/A
USS Colorado (ACR-7)	19 January 1905	Pueblo (ACR-7)	9 September 1916	Pueblo (CA-7)	17 July 1920
USS Maryland (ACR-8)	18 April 1905	Frederick (ACR-8)	9 November 1916	Frederick (CA-8)	17 July 1920
USS South Dakota (ACR-9)	27 January 1908	Huron (ACR-9)	on 7 June 1920	Huron (CA-9)	17 July 1920

External links

• Pennsylvania-Class armored cruisers (Archive from 16-Sep-2008)
• hazegray.org: US Cruisers List: Armored Cruisers (Pre-1920 ACR Series)