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Porter-class destroyer

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Title: Porter-class destroyer  
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Subject: Farragut-class destroyer (1934), Mahan-class destroyer, Destroyer leader, Fletcher-class destroyer, World War II destroyers of the United States
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Porter-class destroyer

Class overview
Name: Porter class
Operators: United States Navy
Preceded by: Farragut class
Succeeded by: Mahan class
Built: 1933–37
In commission: 1936–50
Completed: 8
Lost: 1
Retired: 7
General characteristics
Type: Destroyer
  • 1,850 tons standard,
  • 2,663 tons full load
Length: 381 ft (116 m)
Beam: 36 ft 2 in (11.02 m)
Draft: 10 ft 5 in (3.18 m)
Installed power:
Propulsion: 2 shafts
Speed: 37 kn (69 km/h; 43 mph)
Range: 6,380 nautical miles (11,820 km; 7,340 mi) at 12 kn (22 km/h; 14 mph)
  • 13 officers, 193 enlisted (peacetime)
  • 290 (wartime)
Notes: Armament varied greatly from ship to ship during World War II.1

The Porter-class destroyers were a class of eight 1,850-ton large destroyers in the United States Navy. Like the preceding Farragut Class, their construction was authorized by Congress on 26 April 1916, but funding was delayed considerably. They were designed based on an 1,850-ton standard displacement limit imposed by the London Naval Treaty; the treaty's tonnage limit allowed 13 ships of this size, and the similar Somers class was built later to meet the limit. The first four Porters were laid down in 1933 by New York Shipbuilding in Camden, New Jersey and the next four in 1934 at Bethlehem Steel Corporation in Quincy, Massachusetts. All were commissioned in 1936 except Winslow, which was commissioned in 1937. They were built in response to the large destroyers that the Imperial Japanese Navy was building at the time, and were initially leaders of destroyer flotillas. They served extensively in World War II, in the Pacific War, the Atlantic, and in the Americas. Porter was the class's only loss, in the Battle of the Santa Cruz Islands on 26 October 1942.


  • Design 1
    • Engineering 1.1
  • Armament 2
  • Service 3
  • Ships in class 4
  • See also 5
  • References 6
  • External links 7


The larger destroyer leader type had been under active consideration since 1921. Indeed the General Board recommended the construction of five of the type in that year. One factor in favor of leaders was the Navy's total lack of modern light cruisers, only partly alleviated by the ten Omaha-class ships built in the 1920s. Naval historian Norman Friedman believed that the great number of Wickes and Clemson-class destroyers hindered the U.S. Congress from purchasing new leaders. The General Board was very interested in equipping such a type with the new higher pressure and higher temperature steam propulsion equipment also proposed for the Farragut-class destroyers; this would extend the ships' range.[1] The London Naval Treaty and large French destroyers (France did not sign the treaty and built ships well in excess of its limits) seem to have become the tipping points, with the 1930 recommendations beginning the cycle to actually build ships.[2] The Geneva proposals for destroyers also seem to have influence the design, as the Destroyer Leader proposals limited themselves to 1,850 tons per the proposals; these tonnage limits were eventually included in the London treaty.[2]


The Porters had the same propulsion technology as the immediately preceding Farraguts, with 400 psi (2,800 kPa) steam superheated to 645 °F (341 °C). The plant was somewhat larger than in the Farraguts, with designed horsepower increased from 42,800 shaft horsepower (31,900 kW) to 50,000 shaft horsepower (37,000 kW), resulting in a speed of 37 kn (69 km/h; 43 mph).[3] Along with the improved fuel efficiency resulting from superheated steam, the four boilers included economizers to further extend the ships' range by preheating incoming feedwater. The main steam turbines were manufactured by New York Shipbuilding in the case of the ships built by that yard. However, as in the Farraguts, the main turbines had single reduction gearing and no cruising turbines, limiting their efficiency.[4]


USS Phelps (DD-360) in November 1944, with five dual-purpose 5 inch guns

There were extensive discussions about the armament, the 5-inch/25 caliber anti-aircraft (AA) gun being favored as being easy to work and train in a fast moving and lively type of ship. The other candidate was the 5-inch/51 caliber surface type, being very powerful but all but useless against aircraft. It was a discussion made more interesting as the 5-inch/38 caliber dual purpose gun became available in the early 1930s and the Ordnance Department favored it rather strongly. The 5-inch/38 gun was simply a 5-inch/25 gun with the same projectiles and a longer barrel, but that significantly increased its range against both air and surface targets.[5][2] The class was originally built with eight Mk 12 5-inch/38 caliber (127 mm) guns in four Mark 22 single purpose (surface action only) twin enclosed mounts; the single purpose weapons were adopted to save weight.[5] Anti-aircraft protection was provided by two quadruple 1.1-inch (28 mm) mounts; in the 1930s this was considered sufficient. Although the Porters had the same eight 21-inch (533 mm) torpedo tubes as the Farraguts, a full set of reloads was carried. The class was initially equipped with the Mark 11 torpedo or Mark 12 torpedo, which were replaced by the Mark 15 torpedo beginning in 1938.[6] The heavy armament proved to be top-heavy, and aircraft were becoming a greater threat, so during World War II on most of the class, mounts 51 and 54 were replaced with dual purpose (surface action and air action) twin mounts,[5] and the original 1.1-inch guns were replaced with 40 mm Bofors and 20 mm Oerlikon weapons. In some ships, mount 52 was replaced by a quad 40 mm mount, and mount 53 became a single 5 in/38 (127/38 mm) dual purpose mount for a total of five 5-inch dual purpose guns. Additional 40 mm guns were added amidships along with 20 mm weapons. On most ships four K-gun depth charge throwers were added to augment the as-built pair of depth charge racks. In some cases late in the war, (DD-357, DD-359, DD-360) the torpedo tubes, two K-guns, and one depth charge rack were removed to accommodate additional light AA armament, for a total of 16 40 mm (3 × 4, 2 × 2) and 4 20 mm (2 × 2).[7][8][9]


McDougal, Winslow, and Moffett were among the ships that supported the Roosevelt-Churchill conference at Placentia Bay near Argentia, Newfoundland that resulted in the Atlantic Charter in August 1941. Selfridge and Phelps were in port during the attack on Pearl Harbor on 7 December 1941 and engaged enemy aircraft. The class served in the Battle of the Atlantic, in the Pacific War, and escorted convoys in the Americas. Phelps was at the Battle of the Coral Sea and the Battle of Midway, scuttling the disabled USS Lexington (CV-2) with torpedoes at the former battle. Balch rescued survivors of USS Yorktown (CV-5) at Midway. While operating out of Trinidad in the Caribbean, Moffett assisted in sinking two U-boats, U-128 and U-604. Notable engagements for other ships of the class included the invasion of Guadalcanal and the Marianas campaign. By September 1944 the class was concentrated in the Atlantic. Porter was the class's only loss, in the Battle of the Santa Cruz Islands on 26 October 1942. Selfridge lost her bow to a torpedo in the Naval Battle of Vella Lavella on 6 October 1943, but was repaired. McDougal and Winslow were reclassified as AG-126 and AG-127 in September 1945 and modified for anti-kamikaze research in a similar configuration to Gearing-class radar picket destroyers. All except Winslow were scrapped shortly after the war; Winslow remained in service as a training ship until 1950 and was scrapped in 1959.[10]

Ships in class

The eight ships of the Porter class were:[11]

Name and hull number Builder Laid Down Launched Commissioned Fate
Porter (DD-356) New York Shipbuilding, Camden, New Jersey 18 December 1933 12 December 1935 27 August 1936 Lost 26 October 1942 to a torpedo, either from Japanese submarine I-21[12] or "friendly fire" from a ditching TBF Avenger[13]
Selfridge (DD-357) New York Shipbuilding 18 December 1933 18 April 1936 25 November 1936 Scrapped 1946
McDougal (DD-358) New York Shipbuilding 18 December 1933 17 July 1936 23 December 1936 Reclassified AG-126 17 September 1945, scrapped 1949
Winslow (DD-359) New York Shipbuilding 18 December 1933 21 September 1936 17 February 1937 Reclassified AG-127 17 September 1945, decommissioned 28 June 1950, scrapped 1959
Phelps (DD-360) Fore River Shipbuilding 2 January 1934 18 July 1935 26 February 1936 Scrapped 1947
Clark (DD-361) Fore River Shipbuilding 2 January 1934 15 October 1935 20 May 1936 Scrapped 1946
Moffett (DD-362) Fore River Shipbuilding 2 January 1934 11 December 1935 28 August 1936 Scrapped 1947
Balch (DD-363) Fore River Shipbuilding 16 May 1934 24 March 1936 20 October 1936 Scrapped 1946

See also


  1. ^ Friedman, p.77
  2. ^ a b c Friedman, p.79
  3. ^ Friedman, pp. 84, 464
  4. ^ General Information Book with as-built dataWinslow, and USS McDougal, USS Selfridge, USS PorterUSS at Destroyer History Foundation
  5. ^ a b c "DiGiulian, Tony, 5"/38 (12.7 cm) Mark 12 at". Retrieved 2007-08-29. 
  6. ^ "Torpedo History: Torpedo Mk 11, Mk 12 and Torpedo Mk 15". Retrieved 2015-07-07. 
  7. ^ Bauer and Roberts, pp. 183-184
  8. ^ Gardiner and Chesneau, p. 125
  9. ^ Friedman, p. 219
  10. ^ Bauer and Roberts, pp. 183-184
  11. ^ Bauer and Roberts, pp. 183-184
  12. ^ Hammel, Eric (1987). Guadalcanal: The Carrier Battles. New York: Crown Publishers, Inc. pp. 411–413. 
  13. ^  
  • Gardiner, Robert and Chesneau, Roger, Conway's All the World's Fighting Ships 1922-1946, London: Conway Maritime Press, 1980. ISBN 0-83170-303-2.
  • Silverstone, Paul H. (1965). U.S. Warships of World War II. London: Ian Allan Ltd. 
  • This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.

External links

  • -class destroyersPorter at Destroyer History Foundation
  • General Information Book with as-built dataWinslow, and USS McDougal, USS Selfridge, USS PorterUSS at Destroyer History Foundation
  • "Goldplater" destroyers at Destroyer History Foundation
  • 1850-ton leader classes] at Destroyer History Foundation
  • NavSource Destroyer Photo Index Page
  • This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.
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