![]() Salem on 16 June 1952 | |
Class overview | |
---|---|
Name | Des Moines-class |
Builders | |
Operators | ![]() |
Preceded by | Oregon City class |
Succeeded by | None |
Built | 1945-1949 |
In commission | 1948–1975 |
Planned | 12 |
Completed | 3 |
Cancelled | 9 [1] [2] |
Retired | 3 |
Scrapped | 2 |
Preserved | 1 |
General characteristics (as built) | |
Type | Heavy cruiser |
Displacement | |
Length | |
Beam | 76 ft 6 in (23.3 m) |
Draft | 22 ft (6.7 m) |
Installed power | |
Propulsion | 4 shafts; 4 steam turbine sets |
Speed | 33 kn (61 km/h; 38 mph) |
Range | 10,500 nmi (19,400 km; 12,100 mi) at 15 kn (28 km/h; 17 mph) |
Complement | 1,799 officers and enlisted |
Sensors and processing systems | |
Armament |
|
Armor |
|
Aviation facilities | 2 × aircraft catapults |
The Des Moines-class cruisers were a trio of U.S. Navy heavy cruisers commissioned in 1948 and 1949. Largely based on the earlier Baltimore-class heavy cruisers, [3] the Des Moines-class featured improved torpedo protection and heavier anti-aircraft armament. Relatively well-armored and protected, [4] the class was unique in that it mounted nine of the world’s first auto-loading large-caliber guns, the 8-inch (203 mm) Mark 16 guns. These guns enabled Des Moines-class cruisers to fire two to three times faster than earlier 8 in guns with each barrel capable of 8-10 rounds per minute. [5] They were the last of the “all-gun” heavy cruisers and were exceeded in size within the U.S. Navy only by the 30,000-long-ton (30,481 t) Alaska-class "large cruisers" that straddled the line between heavy cruisers and battlecruisers. Two Des Moines-class cruisers were decommissioned by 1961 but the Newport News (CA-148), served until 1975. USS Salem is a museum ship in Quincy, Massachusetts; the other two were scrapped.
Derived from the Baltimore-class heavy cruisers, they were larger, had an improved machinery layout and carried a new design of auto-loading, rapid-fire 8"/55 gun (the Mk16). [6] [7] [8] The improved Mk16 guns of the main battery were the first auto-loading 8" guns fielded by the US Navy and allowed a much higher rate of fire than earlier designs, capable of sustaining eight shots per minute per barrel, about twice that previous heavy cruisers could. [7] [9] The auto-loading mechanism could function at any elevation, giving some anti-aircraft capability. [7] While the secondary battery of six twin 5"/38 Mk12 DP guns was essentially unchanged from the Oregon City and Baltimore-class cruisers, the Des Moines class carried a stronger battery of small-caliber anti-aircraft guns, including 12 twin 3-inch/50 Mk27 and later Mk33 guns, that were considered superior to the earlier ships' quad-mounted 40mm Bofors against contemporary airborne threats. [7]
Twelve ships of the class were planned, but only three were completed: Des Moines (CA-134), Salem (CA-139) and Newport News (CA-148), with USS Dallas (CA-140) canceled when approximately 28 percent complete.
Their speed made them valuable to escort carrier groups and they were useful in showing the flag in goodwill visits. The first two were decommissioned in 1961 and 1959, respectively, but Newport News remained in commission until 1975, serving for a long period (1962–1968) as United States Second Fleet flagship, and providing valuable gunfire support off Vietnam from 1967 to 1973. The ship's missions included shelling targets close to the North Vietnam shoreline. In August 1972 she raided Haiphong harbor at night with other US Navy ships to shell coastal defenses, surface-to-air missile sites and Cat Bi airfield.
Newport News was the last active all-gun cruiser (serving 25.5 years continuously) and the first completely air-conditioned surface ship in the U.S. Navy. Salem is a museum ship in Quincy, Massachusetts. Newport News was laid up at the Philadelphia Naval Shipyard and scrapped in 1993, while Des Moines was scrapped from 2006–2007. Dallas (CA-140) and eight other ships (CA-141 through CA-143 and CA-149 through CA-153) were canceled at the end of World War II. [2] [7]
Ship | Hull No. | Builder | Laid down | Launched | Commissioned | Decommissioned | Fate |
---|---|---|---|---|---|---|---|
Des Moines | CA-134 | Bethlehem Steel Corporation, Fore River Shipyard, Quincy, Massachusetts | 28 May 1945 | 27 September 1946 | 16 November 1948 | 6 July 1961 | Struck 9 July 1991, scrapped 2007 |
Salem | CA-139 | 4 July 1945 | 25 March 1947 | 14 May 1949 | 30 January 1959 | Struck 12 July 1991, museum ship at Quincy, Massachusetts | |
Dallas | CA-140 | 15 October 1945 | — | Cancelled, 6 June 1946 (28% completed) | |||
— | CA-141 | — | Cancelled, 7 January 1946 | ||||
CA-142 | Cancelled, 12 August 1945 | ||||||
CA-143 | |||||||
Newport News | CA-148 | Newport News Shipbuilding, Newport News, Virginia | 1 October 1945 | 6 March 1948 | 29 January 1949 | 27 June 1975 | Struck 31 July 1978, Sold for scrap, 25 February 1993 |
— | CA-149 | — | Cancelled, 12 August 1945 | ||||
CA-150 | New York Shipbuilding Corporation, Camden, New Jersey | ||||||
CA-151 | |||||||
CA-152 | |||||||
CA-153 |
USS Mississippi (BB-41/AG-128), the second of three members of the New Mexico class of battleship, was the third ship of the United States Navy named in honor of the 20th state. The ship was built at the Newport News Shipbuilding Company of Newport News, Virginia, from her keel laying in April 1915, her launching in January 1917, and her commissioning in December that year. She was armed with a battery of twelve 14-inch (356 mm) guns in four three-gun turrets, and was protected by heavy armor plate, with her main belt armor being 13.5 inches (343 mm) thick.
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USS Des Moines (CA-134) was the lead ship of the class of United States Navy (USN) heavy cruisers. She was the first USN ship to mount the auto-loading 8-inch (203 mm) Mark 16 guns, the first large-caliber auto-loading guns in the world. She was the second ship of the USN to be commissioned with the name of the city of Des Moines, capital of Iowa. Launched 1946, she was commissioned in 1948. She saw duty around the world until her decommissioning in 1961 when she was permanently mothballed. A 1981 survey was done to determine if she was worthy of reactivation for the 600-ship Navy, but the cost was too great so she remained in the reserve. She was struck from the Naval Vessel Register in 1993, which was followed by a campaign to turn her into a museum ship. The campaign failed, and in 2005 she was sold for scrapping, and she was broken up by July 7. Parts of the ship have been donated to various places for display, including at the USS Salem museum, which is the only Des Moines-class ship to avoid the scrapyard.
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