- Published: Friday, 12 November 1999 00:00
Following her participation in Fleet Problem IX (January 1929), ARIZONA transited the Panama Canal on 7 February 1929 for Guantanamo Bay, whence she operated through April. She then proceeded to Norfolk Navy Yard, entering it on 4 May 1929 to prepare for modernization.
Placed in reduced commission on 15 July 1929, ARIZONA remained in yard hands for the next 20 months; tripod masts, surmounted by three-tiered fire control tops, replaced the old cage masts; 5-inch, 25-caliber antiaircraft guns the 3-inch, 50s with which she had been equipped. She also received additional armor to protect her vitals from the fall of shot, and blisters to protect her from torpedo or near-miss damage from bombs. In addition, she received new boilers as well as new main and cruising turbines. Ultimately, she was placed in full commission on 1 March 1931.
A little over two weeks later, on 19 March 1931, President Herbert C. Hoover embarked on board the recently modernized battleship, and sailed for Puerto Rico and the Virgin Islands, standing out to sea from Hampton Roads that day. Returning on 29 March 1931, ARIZONA disembarked the Chief Executive and his party at Hampton Roads and then proceeded north to Rockland, Maine, to run her post-modernization standardization trials. After a visit to Boston, the battleship dropped down to Norfolk, whence she sailed for San Pedro on 1 August 1931, assigned to Battleship Division 3, Battle Force.