Sister ship USS New Mexico
An item referred to the magazine Marine Rundschau dated April 1945 reporting that the American battleship USS Idaho in the last 3,5 years was modernized with costs 8 million US dollars. The elevation of the main guns was increased from 15 to 30 degrees, fire control improved, 8-12,7cm/4” guns added to the anti aircraft armament and the protection considerably strengthened. The result was an increase of the displacement with 3.000 tons making more powerful machinery needed to obtain a speed of 21 miles.(1)
Note
1. Part of the New Mexico-class consisting of the New Mexico, Mississippi and Idaho, preceded by the Pennsylvania-class and succeeded by the Tennessee-class, laid down by New York Shipbuilding Corporation on 20 January 1915, launched on 30 June 1917, commissioned on 24 March 1919, decommissioned on 3 July 1946 and sold to be broken up on 24 November 1947.
