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Ashland-class dock landing ship

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USS Ashland underway off Cape Henry, Virginia, 20 May 1953
Class overview
BuildersMoore Dry Dock Company
Operators
Succeeded byCasa Grande class
In commission1943–1985
Planned8
Completed8
Retired8
General characteristics
TypeDock landing ship
Displacement
  • 4,032 tons (light draft),
  • 7,930 tons (loaded)
Length457 ft 9 in (139.52 m)
Beam72 ft 2 in (22.00 m)
Draft15 ft 10 in (4.83 m) max
Propulsion2 Babcock & Wilcox boilers, oil-fired; 2 Skinner Uni-Flow reciprocating engines; Twin screws
Speed17 knots (31 km/h; 20 mph)
Range8,000 nmi (15,000 km; 9,200 mi) at 15 knots (28 km/h; 17 mph)
Complement254
Armament
  • 1 × 5 in/38 cal. DP gun;
  • 2 × 40 mm quad AA guns
  • 2 × 40 mm twin AA guns
  • 16 × 20 mm AA guns

The Ashland-class dock landing ship were the first class of dock landing ship of the United States Navy. They were built during World War II. A dock landing ship (hull classification LSD) is a form of auxiliary warship designed to support amphibious operations. Eight ships were built for the United States Navy and they remained in US service until the 1960s. Two of the class were sold for export overseas, with one joining the Republic of China Navy and the other the Argentinian Navy. The two transferred ships stayed in service until the 1980s. All eight ships were scrapped.

Design and description

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The Ashlands were the first dock landing ships designed and constructed for the United States Navy. Though initially the American planners had no interest in the ship type, a design was developed from a British Staff Requirement which called for a ship with a floodable deck aft to operate at least two British landing craft tanks. The ship type was initially designated "tank landing carrier" (TLC).[1] The dock landing ship was designed with the capability of moving smaller, pre-loaded amphibious warfare craft over long distances.[2] The Ashland-class ships measured 454 feet (138 m) long at the waterline and 457 ft 9 in (139.52 m) overall with a beam of 72 ft 2 in (22.00 m) and a seagoing draft of 15 ft 10 in (4.83 m) and a maximum draft of 18 ft (5.5 m).[2][3] The vessels had a light displacement of 4,032 long tons (4,097 t) and a full load displacement of 5,746 long tons (5,838 t).[2][4] While loaded and seagoing, their displacement is 7,100 long tons (7,200 t) and 13,490 long tons (13,710 t) when the well deck was flooded down.[4] They had a complement of 254.[2]

The vessels were propelled by two shafts powered by two Skinner Uniflow reciprocating engines fed steam by two double boilers creating 7,400 indicated horsepower (5,500 kW). This gave the dock landing ships a maximum speed of 15.4 knots (28.5 km/h; 17.7 mph) and a range of 7,400 nautical miles (13,700 km; 8,500 mi) at 15 knots (28 km/h; 17 mph).[2][3][a] In United States Navy service, the Ashlands were equipped with a single 5-inch (127 mm)/38-caliber gun, two twin-mounted 40-millimeter (1.6 in) guns and two quad-mounted 40 mm guns and sixteen 20 mm (0.79 in) guns.[2][6][b]

Amphibious capabilities

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Their well deck extended three-quarters the length of the ship and measured 337 ft 11 in by 43 ft 8 in (103 by 13.3 m).[3][7] The stern gate that opened onto the well deck measured 19 ft (5.8 m).[6] The original design called for the ability to transport 16 landing craft mechanized (LCMs), with each LCM able to embark a single tank. With four TLCs a medium tank battalion (comprising 48 tanks) could be transported. Furthermore, the ships had to transport the vehicle crews, numbering 280 troops and maintain a sustained speed of 15 knots at full load to keep up with the invasion fleets. The final design allowed for the ships to embark either two British 193 ft (59 m) landing craft tanks (LCT) side by side or three US Mk 5 LCTs with one forward of the other two which were positioned side by side or 14 LCMs or 1,500 long tons (1,500 t) of cargo in the well deck. Furthermore, they could store 12,000 US gallons (45,000 L; 10,000 imp gal) of fuel for the vehicles also with accommodate the crews of up to 24 vehicles in addition to a headquarters staff.[8] Beginning in November 1943 during World War II, a deck was erected over the top of the well deck which doubled the carrying capacity of light vehicles such as trucks and DUKWs. Further additions included the installation of a mezzanine or spar deck beneath the new deck and atop the well deck to increase the carrying capacity of small vehicles again, with the decks being connected by ramps allowing for the vehicles to be driven onto the ship via the stern.[9]

Ships in class

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Ashland class construction data[10]
Hull number Ship name Builder Laid down Launched Commissioned Decommissioned Fate
LSD-1 Ashland Moore Dry Dock Company 22 June 1942 21 December 1942 5 June 1943 22 November 1969 Stricken 25 November 1969
LSD-2 Belle Grove 27 October 1942 17 February 1943 9 August 1943 12 November 1969 Stricken 12 November 1969
LSD-3 Carter Hall 27 October 1942 4 March 1943 18 September 1943 31 October 1969 Stricken 31 October 1969
LSD-4 Epping Forest 23 November 1942 2 April 1943 11 October 1943 31 October 1968 Stricken 1 November 1968
LSD-5 Gunston Hall 28 December 1942 1 May 1943 10 November 1943 25 May 1970 Transferred to Argentina, 1970
LSD-6 Lindenwald 22 February 1943 11 June 1943 9 December 1943 30 November 1967 Stricken 1 December 1967
LSD-7 Oak Hill 9 March 1943 25 June 1943 5 January 1944 26 October 1969 Stricken 31 October 1969
LSD-8 White Marsh 7 April 1943 19 July 1943 29 January 1944 23 January 1957 Transferred to Taiwan, November 1960

Construction and career

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On 26 November 1941, eight LSDs were ordered for construction at the Moore Dry Dock Company yard in Oakland, California for the United States Navy.[1] They entered service at the height of World War II and saw action in the Pacific theater, taking part in several major invasions including the battles of Saipan, Philippines,[11] Okinawa[12] and Iwo Jima.[13] Following the war, the vessels were placed in reserve.[11] During the war, the ability to transport smaller vessels such as PT boats or minesweepers sometimes led to criticism that the Ashland-class ships were not available for their primary jobs. Furthermore, the landing ship docks were fitted with repair shops and some acted as repair ships in forward areas.[9] They were reactivated for the Korean War, taking part in fleet exercises.[13] Epping Forest operated in Korean waters, taking part in minesweeping operations, the first for an LSD.[12] In 1954, Belle Grove was part of the fleet monitoring Operation Castle, a nuclear test at Bikini Atoll and again in 1957 for Operation Hardtack I.[13] In 1956, Ashland was re-configured to operate six Martin P5M-2 Marlin aircraft before being taken out of service again 1957.[11]

In 1956 White Marsh was decommissioned, but remained in active service with a civilian crew as part of the Military Sea Transportation Service (MSTS). White Marsh remained in this service until being transferred to the Taiwan.[14] Lindenwald also saw service with the MSTS but was reacquired by the United States Navy.[15] Belle Grove and Gunston Hall operated off the coast of South Vietnam during the Vietnam War and performed several transport missions in support of operations there.[13][16] Lindenwald also took part in the landings of US troops in the Dominican Republic in 1965.[15]

Export

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Following the Korean War, the Republic of China Navy sought to expand its amphibious capability in case an opportunity arose to invade mainland China. They acquired White Marsh on 17 November 1960 on loan and renamed the ship Tung Hai and gave it the pennant number 191. The vessel was later purchased outright in May 1976 and was renamed Chung Cheng with the pennant number 639. Chung Cheng was discarded in 1988.[17]

On 24 April 1970, Argentina purchased Gunston Hall, renaming the ship Candido de Lasala with the pennant number Q43,[18] later B10.[7] Candido de Lasala was used both as a landing ship dock and as a depot ship for small craft. The vessel was deleted in 1982.[18]

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  • USS Oak Hill (LSD-7) underway off San Francisco in April 1944
    USS Oak Hill (LSD-7) underway off San Francisco in April 1944
  • USS Gunston Hall (LSD-5) underway, soon after recommissioning in March 1949
    USS Gunston Hall (LSD-5) underway, soon after recommissioning in March 1949
  • LSM-175 about to enter the well of USS Carter Hall (LSD-3) in San Diego Bay, Spring 1951
    LSM-175 about to enter the well of USS Carter Hall (LSD-3) in San Diego Bay, Spring 1951
  • USS Gunston Hall (LSD-5) launches PACV c. 1967
    USS Gunston Hall (LSD-5) launches PACV c. 1967

Notes

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  1. ^ Friedman has the Ashlands' maximum speed at 17 knots (31 km/h; 20 mph) but Couhat[5] has states it at 15 knots.
  2. ^ In United States Navy gun nomenclature, the "/38 caliber" denotes the length of the gun. In this case, the /38 gun is 38 caliber, meaning that the gun barrel is 38 times as long as it is in diameter.

Citations

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  1. ^ a b Friedman 2002, p. 127.
  2. ^ a b c d e f Friedman 1980, p. 161.
  3. ^ a b c Blackman 1953, p. 432.
  4. ^ a b Friedman 2002, p. 129.
  5. ^ Couhat 1976, pp. 7, 353.
  6. ^ a b Friedman 2002, p. 130.
  7. ^ a b Couhat 1976, p. 7.
  8. ^ Friedman 2002, pp. 127–128.
  9. ^ a b Friedman 2002, p. 131.
  10. ^ Friedman 2002, p. 519.
  11. ^ a b c DANFS Ashland.
  12. ^ a b DANFS Epping Forest.
  13. ^ a b c d DANFS Belle Grove.
  14. ^ DANFS White Marsh.
  15. ^ a b DANFS Lindenwald.
  16. ^ DANFS Gunston Hall.
  17. ^ Gardiner, Chumbley & Budzbon 1995, pp. 454, 458.
  18. ^ a b Gardiner, Chumbley & Budzbon 1995, p. 12.

References

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Wikimedia Commons has media related to Ashland class dock landing ships.
  • Blackman, Raymond V. B., ed. (1953). Jane's Fighting Ships 1953–54. London: Sampson, Low and Marston. OCLC 913556389.
  • Couhat, Jean Labayle, ed. (1976). Combat Fleets of the World 1976/77: Their Ships, Aircraft, and Armament. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-183-8.
  • "Ashland (LSD-1)". Dictionary of American Naval Fighting Ships. United States Naval History and Heritage Command. Retrieved 30 October 2022.
  • "Belle Grove". Dictionary of American Naval Fighting Ships. United States Naval History and Heritage Command. Retrieved 30 October 2022.
  • "Epping Forest". Dictionary of American Naval Fighting Ships. United States Naval History and Heritage Command. Retrieved 30 October 2022.
  • "Gunston Hall I (LSD-5)". Dictionary of American Naval Fighting Ships. United States Naval History and Heritage Command. Retrieved 30 October 2022.
  • "Lindenwald". Dictionary of American Naval Fighting Ships. United States Naval History and Heritage Command. Retrieved 30 October 2022.
  • "White Marsh". Dictionary of American Naval Fighting Ships. United States Naval History and Heritage Command. Retrieved 30 October 2022.
  • Friedman, Norman (1980). "United States of America". In Chesneau, Roger (ed.). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7.
  • Friedman, Norman (2002). U.S. Amphibious Ships and Craft: An Illustrated Design History. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-250-1.
  • Gardiner, Robert; Chumbley, Stephen & Budzbon, Przemysław, eds. (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
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