Engineering:Amphibious transport dock

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Short description: Transport ship for carrying and landing amphibious forces
The interior configuration of the United States Navy's San Antonio-class amphibious transport dock shows features common to most LPDs

An amphibious transport dock, also called a landing platform dock (LPD),[1] is an amphibious warfare ship, a warship that embarks, transports, and lands elements of a landing force for expeditionary warfare missions.[2] Several navies currently operate this kind of ship. The ships are generally designed to transport troops into a war zone by sea, primarily using landing craft, although invariably they also have the capability to operate transport helicopters.

Amphibious transport docks perform the mission of amphibious transports, amphibious cargo ships, and the older dock landing ships (LSD) by incorporating both a flight deck and a well deck that can be ballasted and deballasted to support landing craft or amphibious vehicles. The main difference between LSDs and LPDs is that while both have helicopter landing decks, the LPD also has hangar facilities for protection and maintenance.[3] In the United States Navy, the newer class of LPD has succeeded the older classes of LSDs, and both the Navy and United States Marine Corps are looking to the LPD to be the basis of their new LX(R) program to replace their LSDs.[4]

LPD classes

Country Class In service Commissioned Length Beam Draft Displacement (mt) Note Image
 Algeria Kalaat Béni Abbès 1 2015 143 m (469 ft) 21.5 m (71 ft) 5.3 m (17 ft) 9,000 Improved San Giorgio-class built in Italy. BDSL-474.png
 Australia Choules 1 2011 176.6 m (579 ft) 26.9 m (88 ft) 5.8 m (19 ft) 16,160 Ex-British Largs Bay (L3006) sold to Australian Navy in 2011, renamed Choules (L100). HMAS Choules FBE 2014.JPG
 Brazil Bahia 1 2016 168 m (551 ft) 23.5 m (77 ft) 5.2 m (17 ft) 12,000 Ex-French Siroco (L9012) sold to Brazil Navy in 2015, renamed Bahia (G40). Siroco toulon.jpg
 Chile Sargento Aldea 1 2011 168 m (551 ft) 23.5 m (77 ft) 5.2 m (17 ft) 12,000 Ex-French Foudre (L9011) sold to Chile Navy in 2011, renamed Sargento Aldea (LSDH-91). USS America (LHA-6) and Sargento Aldea (LSDH-91) underway off Chile in August 2014.JPG
 China Type 071 (Yuzhao) 8 2007 210 m (690 ft) 28 m (92 ft) 7 m (23 ft) 25,000 Yuzhao (Type 071) Class Amphibious Ship.JPG
 India Jalashwa 1 2007 173.7 m (570 ft) 32 m (105 ft) 6.7 m (22 ft) 16,600 Ex-USS Trenton (LPD-14) sold to the Indian Navy in 2007, renamed INS Jalashwa (L41). INS Jalashwa.jpg
 Indonesia Makassar 5 2007 122–125 m (400–410 ft) 22 m (72 ft) 4.9 m (16 ft) 11,394 Designed by Daesun Shipbuilding & Engineering Co., first two units were built in South Korea. Kri makassar-590.PNG
 Italy San Giorgio 3 1987 133 m (436 ft) 20.5 m (67 ft) 7,650 (San Giorgio and San Marco)
7,980 (San Giusto)
San Marco (L9893) underway in the Mediterranean Sea on 16 June 2016.JPG
 Japan Ōsumi 3 1998 178 m (584 ft) 25.8 m (85 ft) 6.0 m (19.7 ft) 14,000 LST-4003 Kunisaki.jpg
 Myanmar Makassar 1 2019 122–125 m (400–410 ft) 22 m (72 ft) 4.9 m (16 ft) 11,394 UMS Moattama, built in South Korea.
 Netherlands Rotterdam 2 1997 166 m (545 ft) 27 m (89 ft) 6.0 m (19.7 ft) 12,750 (Rotterdam)
16,800 (Johan de Witt)
Johan de Wit L801.JPG
 Peru Makassar 2 on order[5] 122 m (400 ft) 22 m (72 ft) 4.9 m (16 ft) 11,394 Built in Peru. Kri makassar-590.PNG
 Philippines Tarlac 2 2016[6] 123 m (404 ft) 21.8 m (72 ft) 5.0 m (16.4 ft) 11,583 Subclass of the Makassar-class built in Indonesia. BRP Tarlac homebound.jpg
 Qatar Al Fulk 1 fitting out 143 m (469 ft) 21.5 m (71 ft) 5.3 m (17 ft) 9,000 Improved San Giorgio-class built in Italy.
 Singapore Endurance 4 2000 141 m (463 ft) 21 m (69 ft) 5.0 m (16.4 ft) 8,500 Singapore Strait Passing warship.jpg
 Spain Galicia 2 1998 166 m (545 ft) 25 m (82 ft) 5.8 m (19 ft) 13,815 Buque de asalto anfibio(L-51) Galicia santander.JPG
 Taiwan Yushan 1 2021 153 m (502 ft)[7] 23 m (75 ft)[7] 6.0 m (19.7 ft)[7] 10,600[7] 04.13 總統出席「海軍新型兩棲船塢運輸艦命名暨下水典禮」 - Flickr id 51112816358.jpg
 Thailand Angthong 1 2012 141 m (463 ft) 21 m (69 ft) 5.0 m (16.4 ft) 8,500 Based on the Endurance-class, built in Singapore. Thai landing ship Angthong (LPD 791) in February 2016.JPG
Chang 1 sea trials 213 m (699 ft) 28 m (92 ft) 7 m (23 ft) 22,000 Export version of the Chinese Type 071 amphibious transport dock.
 United Kingdom Albion 2 2003 176 m (577 ft) 28.9 m (95 ft) 7.1 m (23 ft) 19,560 HMS Albion MOD 45151289.jpg
Bay 3 2007 176.6 m (579 ft) 26.9 m (88 ft) 5.8 m (19 ft) 16,160 RFA Mounts Bay, a Landing Ship Dock (Auxiliary) (LSD(A)), leaving Portsmouth Dockyard MOD 45145830.jpg
 United States San Antonio 12 2006 208 m (682 ft) 32 m (105 ft) 7.0 m (23.0 ft) 25,300 USS San Antonio

Decommissioned

Country Class Out of service Commissioned Length Beam Draft Displacement (mt) Note
 France Ouragan 2 1963–2007 149 m (489 ft) 21.5 m (71 ft) 5.4 m (18 ft) 8,500 FS Ouragan 2.jpg
Bougainville 1 1988–2008 113.50 m (372.4 ft) 17.00 m (55.77 ft) 4.24 m (13.9 ft) 4,870 Bougainville p1150183.jpg
Foudre 2 1990–2015 168 m (551 ft) 23.5 m (77 ft) 5.2 m (17 ft) 12,000 Sold to Chile and Brazil. Siroco toulon.jpg
 United States Raleigh 3 1962–2005 159 m (522 ft) 30 m (98 ft) 7.0 m (23.0 ft) 13,818 USS La Salle (LPD-3) converted from Landing Platform Dock to Auxiliary Flagship and redesignated as USS La Salle (AGF-3) in 1972. Dedalo (R01) USS Raleigh (LPD-1) and USS Saipan (LHA-2) at Rota 1982.JPEG
Austin 3 1965–2007 173 m (568 ft) 32 m (105 ft) 6.7 m (22 ft) 16,914 120828-N-YG591-126.jpg
Austin (Cleveland subclass) 7 1967–2014 173 m (568 ft) 32 m (105 ft) 6.7 m (22 ft) 16,914 Some sources consider Cleveland (seven built) to be a part of the Austin class. USS Coronado (LPD-11) converted from Landing Platform Dock to Auxiliary Flagship and redesignated as USS Coronado (AGF-11) in 1980. USS Cleveland LPD-7.jpg
Austin (Trenton subclass) 2 1971–2017 173 m (568 ft) 32 m (105 ft) 6.7 m (22 ft) 16,914 Some sources consider Trenton (two built) ships to be a part of the Austin class. Ex-USS Trenton (LPD-14) sold to the Indian Navy and in active service with Indian Navy. USS Ponce (LPD-15) converted (AFSB(I)-15). USS Trenton LPD-14 fleetweek2004.jpg
 Indonesia Tanjung Dalpele 1 2003-2007 122 m (400 ft) 22 m (72 ft) 4.9 m (16 ft) 11,394 Converted to a hospital ship in 2007, renamed KRI Dr Soeharso (990). 015BANGGA.jpg
 United Kingdom Fearless 2 1965-2002 158.5 m (520 ft) 24.4 m (80 ft) 6.3 m (21 ft) 16,950 Scrapped between 2002 and 2008. HMS Ocean provided amphibious cover until the two ships of the Albion class were available. HMS Fearless (L10) off North Carolina 1996.JPEG

Gallery

See also

References