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USNS ''John Glenn'' (T-ESD-2), (formerly MLP-2) is a
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
Expeditionary Transfer Dock An Expeditionary Transfer Dock (ESD), formerly the Mobile Landing Platform (MLP), is designed to be a semi-submersible, flexible, modular platform providing the US Navy with the capability to perform large-scale logistics movements such as the tr ...
ship named in honor of
John Glenn John Herschel Glenn Jr. (July 18, 1921 – December 8, 2016) was an American Marine Corps aviator, astronaut, businessman, and politician. He was the third American in space and the first to orbit the Earth, circling it three times in 1 ...
, a
Naval Aviator Naval aviation / Aeronaval is the application of military air power by navies, whether from warships that embark aircraft, or land bases. It often involves '' navalised aircraft'', specifically designed for naval use. Seaborne aviation encompas ...
, retired
United States Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionar ...
colonel Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th, and 19th centuries, a colon ...
, veteran of
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
and the
Korean War The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
,
astronaut An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a List of human spaceflight programs, human spaceflight program to serve as a commander or crew member of a spa ...
, and
United States senator The United States Senate consists of 100 members, two from each of the 50 U.S. state, states. This list includes all senators serving in the 119th United States Congress. Party affiliation Independent Senators Angus King of Maine and Berni ...
.


Design

The Expeditionary Transfer Dock is a new concept, part of the Maritime Prepositioning Force of the future. To control costs, the ships will not be built to combat vessel standards and are designed primarily to support three military
hovercraft A hovercraft (: hovercraft), also known as an air-cushion vehicle or ACV, is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces. Hovercraft use blowers to produce a large volume of air below the ...
(such as the
Landing Craft Air Cushion The Landing Craft Air Cushion (LCAC) is a class of air-cushioned landing craft (hovercraft) used by the United States Navy and the Japan Maritime Self-Defense Force (JMSDF). They transport weapons systems, equipment, cargo and personnel from s ...
(LCAC)), vehicle staging with a sideport ramp and large mooring fenders. A decision was made to eliminate helicopter capability and ship-to-ship transfer of heavy equipment. The propulsion motors are of British design and build. Power conversion company
Converteam GE Power Conversion, formerly Converteam, is a French electrical engineering company and is a subsidiary of GE Vernova. GE Power Conversion's global headquarters is located in the Paris-Saclay research-intensive and business cluster, south ...
was selected as the supplier of Integrated Power Systems with the award of an additional contract to design and supply the electric power, propulsion and vessel automation system. As an auxiliary support ship, her role would be a seagoing pier for friendly forces in case accessibility to onshore bases is denied. Such flexibility would be useful following
natural disaster A natural disaster is the very harmful impact on a society or community brought by natural phenomenon or Hazard#Natural hazard, hazard. Some examples of natural hazards include avalanches, droughts, earthquakes, floods, heat waves, landslides ...
s and for supporting US Marines once they are ashore.


Construction

The ship's keel was laid down on 17 April 2012 at the
National Steel and Shipbuilding Company National Steel and Shipbuilding Company, commonly referred to as NASSCO, is an American shipbuilding company with four shipyards located in San Diego, Norfolk, Virginia, Norfolk, Bremerton, and Mayport (Jacksonville), Mayport. It is a division ...
(NASSCO) shipyard in
San Diego San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
,
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
. She was christened on 2 February 2014 and was attended by John Glenn and his family. Other Navy and Marine guest speakers that attended the ceremony include Assistant Secretary of the Navy (Research, Development and Acquisitions)
Sean Stackley Sean Gerard Joseph Stackley (born August 7, 1957) is an American engineer and former naval officer who served as the Assistant Secretary of the Navy for Research, Development and Acquisition from July 2008 to August 3, 2017. He also served as the ...
,
Chief of Naval Operations The chief of naval operations (CNO) is the highest-ranking officer of the United States Navy. The position is a statutory office () held by an Admiral (United States), admiral who is a military adviser and deputy to the United States Secretary ...
Jonathan Greenert Jonathan William Greenert (born May 15, 1953) is a former United States Navy admiral who served as the 30th Chief of Naval Operations from September 23, 2011, to September 18, 2015. He previously served as the 36th Vice Chief of Naval Operations ...
, and
Lieutenant General Lieutenant general (Lt Gen, LTG and similar) is a military rank used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the battlefield, who was norma ...
John A. Toolan. ''John Glenn'' was delivered in 2014 to the Military Sealift Command's
Maritime Prepositioning Force Strategic sealift ships are part of the United States Military Sealift Command's (MSC) prepositioning program. There are currently 17 ships in the program, strategically positioned around the world to support the Army, Navy, Air Force, Marine Corp ...
. As an ESD, the ship is under the command of the
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
's
Military Sealift Command The Military Sealift Command (MSC) is an organization that controls the replenishment and military transport ships of the United States Navy. Military Sealift Command has the responsibility for providing sealift and ocean transportation for all U ...
, and thus will not be commissioned into the US Navy (hence her designation prefix, " USNS"). The ship will undergo further construction additions at the Vigor Shipyard in
Portland, Oregon Portland ( ) is the List of cities in Oregon, most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated close to northwest Oregon at the confluence of the Willamette River, Willamette and Columbia River, ...
.


Ship re-designation

Effective 4 September 2015,
U.S. Secretary of the Navy The Secretary of the Navy (SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department within the United States Department of Defense. On March 25, 2025, John Phelan was confirm ...
Ray Mabus Raymond Edwin Mabus Jr. (; born October 11, 1948) is an American politician and lawyer. A member of the Democratic Party (United States), Democratic Party, he served as the 75th United States Secretary of the Navy from 2009 to 2017. Mabus previo ...
officially announced the creation of a new ship designation, "E" for expeditionary support. Joint High Speed Vessel (JHSV) will be called Expeditionary Fast Transport, or EPF; the
Mobile Landing Platform An Expeditionary Transfer Dock (ESD), formerly the Mobile Landing Platform (MLP), is designed to be a semi-submersible, flexible, modular platform providing the US Navy with the capability to perform large-scale logistics movements such as the tr ...
(MLP) will be called Expeditionary Transfer Dock, or ESD; and the Afloat Forward Staging Base (AFSB) variant of the MLP will be called Expeditionary Mobile Base, or ESB. The new designation was pursuant to a memorandum sent to Secretary Mabus from
Chief of Naval Operations The chief of naval operations (CNO) is the highest-ranking officer of the United States Navy. The position is a statutory office () held by an Admiral (United States), admiral who is a military adviser and deputy to the United States Secretary ...
Admiral
Jonathan Greenert Jonathan William Greenert (born May 15, 1953) is a former United States Navy admiral who served as the 30th Chief of Naval Operations from September 23, 2011, to September 18, 2015. He previously served as the 36th Vice Chief of Naval Operations ...
dated 31 August 2015.


References


External links

* * {{DEFAULTSORT:John Glenn Montford Point-class mobile landing platforms Auxiliary ships of the United States Navy Ships built in San Diego 2013 ships John Glenn