Liberty ships were a class of cargo ship built in the United States during World War II under the Emergency Shipbuilding Program. Although British in concept, the design was adopted by the United States for its simple, low-cost construction. Mass-produced on an unprecedented scale, the Liberty ship came to symbolize U.S. wartime industrial output.
A cargo ship or freighter is a merchant ship that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the world's seas and oceans each year, handling the bulk of international trade. Cargo ships are usually specially designed for the task, often being equipped with cranes and other mechanisms to load and unload, and come in all sizes. Today, they are almost always built of welded steel, and with some exceptions generally have a life expectancy of 25 to 30 years before being scrapped.
Liquefied natural gas (LNG) is natural gas (predominantly methane, CH4, with some mixture of ethane, C2H6) that has been cooled down to liquid form for ease and safety of non-pressurized storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state at standard conditions for temperature and pressure.
A merchant ship, merchant vessel, trading vessel, or merchantman is a watercraft that transports cargo or carries passengers for hire. This is in contrast to pleasure craft, which are used for personal recreation, and naval ships, which are used for military purposes.
A tanker is a ship designed to transport or store liquids or gases in bulk. Major types of tankship include the oil tanker, the chemical tanker, cargo ships, and a gas carrier. Tankers also carry commodities such as vegetable oils, molasses and wine. In the United States Navy and Military Sealift Command, a tanker used to refuel other ships is called an oiler but many other navies use the terms tanker and replenishment tanker. Tankers were first developed in the late 19th century as iron and steel hulls and pumping systems were developed. As of 2005, there were just over 4,000 tankers and supertankers 10,000 LT DWT or greater operating worldwide.
Methane Princess and Methane Progress were the first purpose-built LNG carriers, entering service in 1964 and used to transport natural gas from Algeria to the UK. Methane Princess was built at the Vickers shipyard at Barrow-in-Furness and her sister by Harland and Wolff in Belfast.
LNG El Paso Sonatrach was a liquefied natural gas carrier (LNG) of the El Paso Marine Corporation which was active in the late 1970s. Although she was US owned, the ship was registered in Liberia because of tax and economical reasons.
An LNG carrier is a tank ship designed for transporting liquefied natural gas (LNG).
A hydrogen tanker or liquid hydrogen tanker is a tank ship designed for transporting liquefied hydrogen.
Leif Höegh & Co is a shipping company founded in 1927 by Norwegian Leif Høegh (1896-1974). Since 2006 the company has been structured as two separate entities, Höegh Autoliners and Höegh LNG, with Leif Höegh & Co acting as a common holding company.
Knutsen OAS Shipping is a privately owned shipping company located in Haugesund, Norway. The company has a fleet of purpose-built shuttle tankers, chemical carriers and product tankers internationally. The fleet consists of 41 shuttle tankers, chemical carriers and product tankers. In 2009 the company had an onshore staff of 64 to handle projects and operation of the fleet, 430 administrative employees offshore and about 800 foreign employees.
BP Shipping is the maritime arm of British headquartered global oil company, BP. The unit covers the marine transport, logistics and insurance requirements of all BP's global activities.
Gastor and Nestor were two LNG carriers built at the French shipyard Chantiers de l'Atlantique in Saint-Nazaire. Although delivered in 1976 both ships only entered real service in 1993, after their sale to Bonny Gas Transport Bermuda Shell, a subsidiary of Nigeria LNG Limited. Under their original names, the ships never transported any cargo.
A gas carrier, gas tanker, LPG carrier, or LPG tanker is a ship designed to transport LPG, LNG, CNG, or liquefied chemical gases in bulk.
A liquefied natural gas terminal is a facility for managing the import and/or export of liquefied natural gas (LNG). It comprises equipment for loading and unloading of LNG cargo to/from ocean-going tankers, for transfer across the site, liquefaction, re-gasification, processing, storage, pumping, compression, and metering of LNG. LNG as a liquid is the most efficient way to transport natural gas over long distances, usually by sea.
A marine LNG engine is a dual fuel engine that uses natural gas and bunker fuel to convert chemical energy in to mechanical energy. Due to natural gas' cleaner burning properties, the use of natural gas in merchant ship propulsion plants is becoming an option for companies in order to comply with IMO and MARPOL environmental regulations. The natural gas is stored in liquid state (LNG) and the boil-off gas is routed to and burned in dual fuel engines. Shipping companies have been cautious when choosing a propulsion system for their fleets. The steam turbine system has been the main choice as the prime mover on LNG carriers over the last several decades. The decades-old system on steam propelled LNG carriers uses BOG. LNG carriers are heavily insulated to keep the LNG at around -160 °C – to keep it liquefied. Despite insulation, the LNG containment area is penetrated by heat which allows for naturally generated boil-off gas (BOG).
Methane Pioneer was the first oceangoing liquified natural gas tanker in the world. Built in 1945 as a cargo ship named Marline Hitch, the vessel was renamed Don Aurelio and Normarti before being rebuilt in 1958 for the purpose of transporting LNG and operated between 1959 and 1972. The ship was later renamed Aristotle.
SS Hagerstown Victory was a Victory ship-based troop transport built for the U.S. Army Transportation Corps (USAT) late in World War II under the Emergency Shipbuilding program. It saw service in the European Theater of Operations during 1945 and in the immediate post-war period repatriating U.S. troops. Hagerstown Victory was one of 97 cargo Victory ships converted to a troopship.
SS Belais was the fourth ship of the seven B-class oil tankers. She was previously known as Gastrana. She is named after the belais, a species of fish found in Brunei and Malaysia.
