A dock landing ship (also called Landing Ship, Dock or LSD) is an amphibious warfare ship with a well dock to transport and launch landing craft and amphibious vehicles. Some ships with well decks, such as the Soviet Ivan Rogov class, also have bow doors to enable them to deliver vehicles directly to a beach (like a LST). Modern dock landing ships also operate helicopters.
A ship with a well deck (docking well) can transfer cargo to landing craft in rougher seas than a ship that has to use cranes or a stern ramp.
The US Navy hull classification symbol for a ship with a well deck depends on its facilities for aircraft - a (modern) LSD has a helicopter deck, a LPD also has a hangar, and a LHD or LHA has a full-length flight deck.
The LSD (US Navy hull classification for Landing Ship, Dock) came as a result of a British requirement during the Second World War for a vessel that could carry large landing craft across the seas at speed.
The first LSD came from a design by Sir Rowland Baker who had designed the British Landing Craft, Tank. It was an answer to the problem of launching small craft rapidly. The "Landing Ship Stern Chute", which was a converted train ferry, was an early attempt. Thirteen Landing Craft Mechanized (LCM) could be launched from these ships down the chute. The Landing Ship Gantry was a converted tanker with a crane to transfer its cargo of landing craft from deck to sea - 15 LCM in a little over half an hour.
The design was developed and built in the US for the USN and the Royal Navy. The LSD could carry 36 LCM at 16 knots. It took one and a half hours for the dock to be flooded down and two and half to pump it out. When flooded they could also be used as docks for repairs to small craft.
Vessels of the LSD hull classification 
In the United States Navy, two related groups of vessels classified as LSDs are in service as of 2011, the Whidbey Island and Harpers Ferry classes, mainly used to carry hovercraft (LCACs), operate helicopters, and carry marines. The British Royal Fleet Auxiliary operates three Bay class dock landing ships.
Former US LSDs include: Ashland class, Casa Grande class, Thomaston class and Anchorage class.
See also 
Cited literature 
- Brown, D. K. (November 2006). Nelson to Vanguard. Annapolis, Maryland: US Naval Institute Press. ISBN 1-59114-602-X.
External links 
Size Matters - The Navy's Landing Ship Tanks (Defence Watch Nov 09)
Sail with Mano as he brings you onboard a BIG home on the high seas. View more videos, photos and stories of the SAF at the links below! facebook: https://ww...
Harpers Ferry Class vs. Bay Class
The United States Navy and the Royal Navy of the United Kingdom are the two most powerful Naval Forces in the world, they are both continuously deployed arou...
Time-lapse video shows the amphibious dock landing ship Pre-
NEW YORK (Nov. 2, 2009) Time-lapse video showing the amphibious dock landing ship Pre-Commissioning Unit (PCU) New York (LPD 21) entering New York Harbor. Th...
HMS Albion a view of hms albion with the well dock flooded at sea.avi
well dock flooded hms albion landing craft.
China completes its 3rd largest amphibious dock landing warship
China has completed its 2nd largest amphibious dock landing warship, the 19000 metric ton Changbaishan, in Shanghai. The 689-foot-long warship can carry 1,0...
Chinese type071 Landing Platform Dock Ship
This was filmed at 2007-12-02, when this LPD（998kunlunshan） was going to leave Hudong shipyard and join Chinese navy south sea fleet.
Giant Landing Ship From WWII Making Docks In Pittsburgh
The arrival of a World War II landing ship that's longer than a football field is quite the sight on Pittsburgh's North Shore.
Ambassador Shapiro Visits Amphibious Assault Ship USS Kearsarge in Eilat
Ambassador Dan Shapiro visited the multi-purpose amphibious assault ship USS Kearsarge (LHD 3), on May 16, in Eilat. The shup, along with embarked Marines fr...
LSD - LANDING SHIP DOCK USS TORTUGA 1/288 Radio Control Scale Model running
US Navy: 3 ships visit Hong Kong, USS Peleliu, Rushmore, Green Bay in Victoria Harbor
China: US Navy ship squadron visits Hong Kong port. Amphibious assault ship USS Peleliu (35 choppers), amphibious transport dock USS Green Bay and dock landi...
Tue, 21 May 2013 16:50:21 -0700
The USS Fort McHenry is a dock landing ship — also called a Landing Ship, Dock or LSD. "Sailor of the Year is a pretty big thing," said Mike Ellis, of Ellis Ace Hardware, who is helping organize the event. The procession will be composed of a number ...
Mon, 20 May 2013 22:37:23 -0700
Sailors tend to lines on the forecastle of the forward-deployed amphibious dock landing ship USS Tortuga (LSD 46) as the ship pulls into Jakarta Harbor for a port visit, marking the beginning of exercise Cooperation Afloat Readiness and Training 2013.
Tue, 21 May 2013 13:06:22 -0700
The USS Pearl Harbor, an amphibious dock landing ship, is scheduled to depart Hawaii on May 24. The mission will last four months. The first stop will be Samoa, followed by Tonga, Marshall Islands, Papua New Guinea, Kiribati, and the Solomon Islands.
Tue, 14 May 2013 04:09:48 -0700
The amphibious assault ship USS Peleliu, the amphibious transport dock USS Green Bay and amphibious dock landing ship USS Rushmore pulled into port at Naval Station San Diego Tuesday morning. Eight months is a long time to be away from anything, ...
Thu, 16 May 2013 14:53:29 -0700
The PELARG consists of amphibious assault ship USS Peleliu (LHA 5), amphibious transport dock ship USS Green Bay (LPD 20), amphibious dock landing ship USS Rushmore (LSD 47) and embarked 15th Marine Expeditionary Unit. The group left San ...
The Maritime Executive
The Maritime Executive
Thu, 02 May 2013 06:22:38 -0700
When decommissioned in 2003, the first USS Anchorage was the most decorated dock landing ship on the West Coast. Designated LPD 23, Anchorage is the seventh amphibious transport dock ship in the San Antonio class. As an element of future ...
Tue, 14 May 2013 08:57:18 -0700
The amphibious assault ship USS Peleliu passed under the Coronado Bridge just before 9 a.m. The amphibious transport dock USS Green Bay and amphibious dock landing ship USS Rushmore were also scheduled to pull into port at Naval Station San ...
Sun, 12 May 2013 07:07:42 -0700
“The New York is still planned to be here by the end of this year, and the [amphibious assault ship] Iwo Jima and the [dock landing ship] Fort McHenry will be coming in next year.” In fact, officials told Navy Times, they expect the amphibious ready ...
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