The Pennsylvania class consisted of two super-dreadnought battleships built for the United States Navy just before the First World War. Named Pennsylvania and Arizona, after the American states of the
Arizona at the United States' post-First World War naval review in New York, December 1918
The Nevada class, represented here by Oklahoma in 1916, were the first American battleship class with triple gun turrets, the "all or nothing" armor concept, oil fuel, and steam turbines with geared cruising turbines (albeit the latter only in Nevada); all of these innovations were continued in the Pennsylvania class.
Arizona's starboard propeller shaft
Pennsylvania on a visit to Australia, 1925
USS Arizona
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USS Arizona was a Standard-type battleship built for the United States Navy in the mid-1910s. Named in honor of the 48th state, she was the second and last ship in the Pennsylvania class. After being
Pennsylvania-class battleship
…Pennsylvania class consisted of two super-dreadnought battleships built for the United States Navy just before the First World War. Named Pennsylvania and Arizona, after the American states of the same names, the two battleships were the United States' second battleship design to adhere to the "all or nothing…
Arizona during the 1920s
Arizona's launch, 19 June 1915
Arizona on the East River, New York City (1916)
Arizona at the New York City naval review, leading ten dreadnoughts that paraded past Secretary of the Navy Josephus Daniels