Arisan Maru

Length overall is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth.

Length between perpendiculars is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member. When there is no sternpost, the centerline axis of the rudder stock is used as the aft end of the length between perpendiculars.

The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer extremities of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water.

A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century.

A propeller is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft with an approximately horizontal axis.

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is a type of fossil fuel, formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras.

Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere.

The Kwantung Army was a general army of the Imperial Japanese Army from 1919 to 1945.

Manchuria is an exonym for a historical and geographic region in Northeast Asia encompassing the entirety of present-day Northeast China and parts of the Russian Far East. Its meaning may vary depending on the context:Historical polities and geographical regions usually referred to as Manchuria: The Later Jin (1616–1636), the Manchu-led dynasty which renamed itself from "Jin" to "Qing", and the ethnicity from "Jurchen" to "Manchu" in 1636 the subsequent duration of the Qing dynasty prior to its conquest of China proper (1644) the northeastern region of Qing dynasty China, the homeland of Manchus, known as "Guandong" or "Guanwai" during the Qing dynasty The region of Northeast Asia that served as the historical homeland of the Jurchens and later their descendants the Manchus Qing control of Dauria was contested in 1643 when Russians entered; the ensuing Sino-Russian border conflicts ended when Russia agreed to withdraw in the 1689 Treaty of Nerchinsk controlled in whole by Qing dynasty China until the Amur Annexation of Outer Manchuria by Russia in 1858–1860 controlled as a whole by the Russian Empire after the Russian invasion of Manchuria in 1900 until the Russo-Japanese War and the Treaty of Portsmouth in 1905, which required Russian withdrawal. controlled by Qing China again, and reorganised in 1907 under the Viceroy of the Three Northeast Provinces controlled by the Republic of China (1912–1949) after the 1911 revolution controlled by the Fengtian clique lead by Zhang Zuolin from 1917 to 1928, until the military Northern Expedition and the Northeast Flag Replacement brought it under control the Republic of China again controlled by Imperial Japan as the puppet state of Manchukuo, often translated as "Manchuria", (1932–1945). Formed after the Japanese invasion of Manchuria, it included all of Northeast China, the northern fringes of present-day Hebei Province, and the eastern part of Inner Mongolia. briefly entirely controlled by the USSR after the Soviet invasion of Manchuria in 1945, but then divided with China Modern Northeast China, specifically the three provinces of Heilongjiang, Jilin, and Liaoning, but broadly also including the eastern Inner Mongolian prefectures of Hulunbuir, Hinggan, Tongliao, and Chifeng, and sometimes Xilin Gol Areas of the modern Russian Federation also known as Outer Manchuria. The two areas involved are Priamurye between the Amur River and the Stanovoy Range to the north, and Primorye which runs down the coast from the Amur mouth to the Korean border, including the island of Sakhalin

The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during the Second World War (1939–1945) to oppose the Axis powers, led by Nazi Germany, Imperial Japan, and Fascist Italy. Its principal members by the end of 1941 were the United Kingdom, United States, Soviet Union, and China.

Manila, officially City of Manila, is the capital of the Philippines and its second-most populous city. Manila is located on the eastern shore of Manila Bay on the island of Luzon. It is highly urbanized and as of 2019, was the world's most densely populated city proper. Manila is considered to be a global city and is rated as an Alpha – City by Globalization and World Cities Research Network (GaWC). It was the first chartered city in the country, and was designated as such by the Philippine Commission Act 183 of July 31, 1901. It became autonomous with the passage of Republic Act No. 409, "The Revised Charter of the City of Manila", on June 18, 1949. Manila is considered to be part of the world's original set of global cities because its commercial networks were the first to extend across the Pacific Ocean and connect Asia with the Spanish Americas through the galleon trade; when this was accomplished, it was the first time an uninterrupted chain of trade routes circling the planet had been established. Manila is among the most-populous and fastest-growing cities in Southeast Asia.

Dysentery, historically known as the bloody flux, is a type of gastroenteritis that results in bloody diarrhea. Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation. Complications may include dehydration.

Kaohsiung City is a special municipality located in southern Taiwan. It ranges from the coastal urban center to the rural Yushan Range with an area of 2,952 km2 (1,140 sq mi). Kaohsiung City has a population of approximately 2.72 million people as of May 2022 and is Taiwan's third most populous city and largest city in southern Taiwan.

In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or battle group and defend them against powerful short-range attackers. They were originally developed in 1885 by Fernando Villaamil for the Spanish Navy as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War.

The knot is a unit of speed equal to one nautical mile per hour, exactly 1.852 km/h. The ISO standard symbol for the knot is kn. The same symbol is preferred by the Institute of Electrical and Electronics Engineers (IEEE), while kt is also common, especially in aviation, where it is the form recommended by the International Civil Aviation Organization (ICAO). The knot is a non-SI unit. The knot is used in meteorology, and in maritime and air navigation. A vessel travelling at 1 knot along a meridian travels approximately one minute of geographic latitude in one hour.

Luzon is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as well as Quezon City, the country's most populous city. With a population of 64 million as of 2021,  it contains 52.5% of the country's total population and is the fourth most populous island in the world. It is the 15th largest island in the world by land area.

The mast of a sailing vessel is a tall spar, or arrangement of spars, erected more or less vertically on the centre-line of a ship or boat. Its purposes include carrying sails, spars, and derricks, giving necessary height to a navigation light, look-out position, signal yard, control position, radio aerial or signal lamp. Large ships have several masts, with the size and configuration depending on the style of ship. Nearly all sailing masts are guyed.

The geographic coordinate system (GCS) is a spherical or ellipsoidal coordinate system for measuring and communicating positions directly on the Earth as latitude and longitude. It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others. Although latitude and longitude form a coordinate tuple like a cartesian coordinate system, the geographic coordinate system is not cartesian because the measurements are angles and are not on a planar surface.