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U.S. Navy sailor aboard a warship in September 2015
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Three types of mariners, seen here in the wheelhouse of a ship: a master, an able seaman, and a harbour pilot. Kristina Regina wheelhouse.jpg
Three types of mariners, seen here in the wheelhouse of a ship: a master, an able seaman, and a harbour pilot.

A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship.


The profession of the sailor is old, and the term sailor has its etymological roots in a time when sailing ships were the main mode of transport at sea, but it now refers to the personnel of all watercraft regardless of the mode of transport, and encompasses people who operate ships professionally, as a sport or recreationally. Be it for a military navy or civilian merchant navy. In a navy, there may be further distinctions: sailor may refer to any member of the navy even if they are based on land; while seaman may refer to a specific enlisted rank.

Professional mariners

Seafarers hold a variety of professions and ranks, each of which carries unique responsibilities which are integral to the successful operation of an ocean-going vessel. A ship's crew can generally be divided into four main categories: the deck department, the engineering department, the steward's department, and others.

Deck department

An able seaman stands iceberg lookout on the bow of the freighter USNS Southern Cross during a re-supply mission to McMurdo Station, Antarctica; circa 1981. Crewmember doing iceberg lookout on the USNS Southern Cross (Ross Sea, Antarctica, 1981).jpg
An able seaman stands iceberg lookout on the bow of the freighter USNS Southern Cross during a re-supply mission to McMurdo Station, Antarctica; circa 1981.

Officer positions in the deck department include but are not limited to: master and his chief, second and third officers. The official classifications for unlicensed members of the deck department are able seaman and ordinary seaman. With some variation, the chief mate is most often charged with the duties of cargo mate. Second Mates are charged with being the medical officer in case of medical emergency. All three mates each do four-hour morning and afternoon shifts on the bridge, when underway at sea.

A common deck crew for a ship includes:

Engineering department

A ship's engineering department consists of the members of a ship's crew that operates and maintains the propulsion and other systems on board the vessel. Marine engineering staff also deal with the "hotel" facilities on board, notably the sewage, lighting, air conditioning and water systems. Engineering staff manage bulk fuel transfers, from a fuel-supply barge in port. When underway at sea, the second and third engineers will often be occupied with oil transfers from storage tanks, to active working tanks. Cleaning of oil purifiers is another regular task. Engineering staff are required to have training in firefighting and first aid. Additional duties include maintaining the ship's boats and performing other nautical tasks. Engineers play a key role in cargo loading/discharging gear and safety systems, though the specific cargo discharge function remains the responsibility of deck officers and deck workers.

A common engineering crew for a ship includes:

American ships also carry a qualified member of the engine department. Other possible positions include motorman, machinist, electrician, refrigeration engineer and tankerman.

Steward's department

A typical steward's department for a cargo ship is a chief steward, a chief cook and a steward's assistant. All three positions are typically filled by unlicensed personnel.

The chief steward directs, instructs, and assigns personnel performing such functions as preparing and serving meals; cleaning and maintaining officers' quarters and steward department areas; and receiving, issuing, and inventorying stores.

The chief steward also plans menus, compiles supply, overtime, and cost control records. The steward may requisition or purchase stores and equipment. Galley roles may include baking.

A chief steward's duties may overlap with those of the steward's assistant, the chief cook, and other Steward's department crewmembers.

A person in the United States Merchant Marine has to have a Merchant Mariner's Document issued by the United States Coast Guard in order to serve as a chief steward. All chief cooks who sail internationally are similarly documented by their respective countries because of international conventions and agreements.

The only time that steward department staff are charged with duties outside the steward department, is during the execution of the fire and boat drill.

Other departments

Various types of staff officer positions may exist on board a ship, including junior assistant purser, senior assistant purser, purser, chief purser, medical doctor, professional nurse, marine physician assistant and hospital corpsman. In the USA these jobs [1] are considered administrative positions and are therefore regulated by Certificates of Registry issued by the United States Coast Guard. Pilots are also merchant marine officers and are licensed by the Coast Guard.

Working conditions

Standard merchant watch system
Day 1Day 2Day 3
4am–8amTeam 1Team 1Team 1
8am–12pmTeam 2Team 2Team 2
12pm–4pmTeam 3Team 3Team 3
4pm–8pmTeam 1Team 1Team 1
8pm–12amTeam 2Team 2Team 2
12am–4amTeam 3Team 3Team 3

Mariners spend extended periods at sea. Most deep-sea mariners are hired for one or more voyages that last for several months. There is no job security after that. The length of time between voyages varies by job availability and personal preference. [2]

The rate of unionization for these workers in the United States is about 36 percent, much higher than the average for all occupations. Consequently, merchant marine officers and seamen, both veterans and beginners, are hired for voyages through union hiring halls or directly by shipping companies. Hiring halls fill jobs by the length of time the person has been registered at the hall and by their union seniority. Hiring halls typically are found in major seaports.

At sea, on larger vessels members of the deck department usually stand watch for 4 hours and are off for 8 hours, 7 days a week. [lower-alpha 1]

Mariners work in all weather conditions. Working in damp and cold conditions often is inevitable, although ships try to avoid severe storms while at sea. It is uncommon for modern vessels to suffer disasters such as fire, explosion, or a sinking. Yet workers face the possibility of having to abandon ship on short notice if it collides with other vessels or runs aground. Mariners also risk injury or death from falling overboard and from hazards associated with working with machinery, heavy loads, and dangerous cargo. However, modern safety management procedures, advanced emergency communications, and effective international rescue systems place modern mariners in a much safer position.

Most newer vessels are air conditioned, soundproofed from noisy machinery, and equipped with comfortable living quarters. These amenities have helped ease the sometimes difficult circumstances of long periods away from home. Also, modern communications such as email, instant messaging and social media platforms link modern mariners to their families. Nevertheless, some mariners dislike the long periods away from home and the confinement aboard ship. They consequently leave the profession.

Life at sea

The tanker SS Overseas Alice takes seas over the bow during a 1981 run from New Orleans to Panama. Ovrseas alice.jpg
The tanker SS Overseas Alice takes seas over the bow during a 1981 run from New Orleans to Panama.
Portrait of a sailor taken on board the French aviso Ardent, 1857. Portrait of a sailor taken on board the French aviso Ardent.jpg
Portrait of a sailor taken on board the French aviso Ardent, 1857.

Professional mariners live on the margins of society, with much of their life spent beyond the reach of land. They face cramped, stark, noisy, and dangerous conditions at sea. Yet men and women still go to sea. For some, the attraction is a life unencumbered with the restraints of life ashore. Seagoing adventure and a chance to see the world also appeal to many seafarers. Whatever the calling, those who live and work at sea invariably confront social isolation.

Findings by the Seafarer's International Research Center indicate a leading cause of mariners leaving the industry is "almost invariably because they want to be with their families". U.S. merchant ships typically do not allow family members to accompany seafarers on voyages. Industry experts increasingly recognize isolation, stress, and fatigue as occupational hazards. Advocacy groups such as International Labor Organization, a United Nations agency, and the Nautical Institute seek improved international standards for mariners.

Sailors on a ship Bundesarchiv B 145 Bild-F048234-0015, Kiel, Segelschiff "Gorch Fock", Matrosen.jpg
Sailors on a ship

One's service aboard ships typically extends for months at a time, followed by protracted shore leave. However, some seamen secure jobs on ships they like and stay aboard for years. In rare cases, veteran mariners choose never to go ashore when in port.

Further, the quick turnaround of many modern ships, spending only a matter of hours in port, limits a seafarer's free-time ashore. Moreover, some seafarers entering U.S. ports from a watch list of 25 countries deemed high-risk face restrictions on shore leave due to security concerns in a post 9/11 environment. However, shore leave restrictions while in U.S. ports impact American seamen as well. For example, the International Organization of Masters, Mates & Pilots notes a trend of U.S. shipping terminal operators restricting seamen from traveling from the ship to the terminal gate. Further, in cases where transit is allowed, special "security fees" are at times assessed.

Such restrictions on shore leave coupled with reduced time in port by many ships translate into longer periods at sea. Mariners report that extended periods at sea living and working with shipmates who for the most part are strangers takes getting used to. At the same time, there is an opportunity to meet people from a wide range of ethnic and cultural backgrounds. Recreational opportunities have improved aboard some U.S. ships, which may feature gyms and day rooms for watching movies, swapping sea stories, and other activities. And in some cases, especially tankers, it is made possible for a mariner to be accompanied by members of his family. However, a mariner's off duty time at sea is largely a solitary affair, pursuing hobbies, reading, writing letters, and sleeping.

Internet accessibility is fast coming to the sea with the advent of cheap satellite communication, mainly from Inmarsat. The availability of affordable roaming SIM cards with online top-up facilities have also contributed to improved connection with friends and family at home.

Notable mariners

Statue dedicated to Italian sailors at Finale Ligure, Liguria, Italy. InthenavyMalgiglia.jpg
Statue dedicated to Italian sailors at Finale Ligure, Liguria, Italy.

Erik the Red and his son Leif Erikson were the first notable mariners known to sail in a primitive, partly man powered vessel across the Arctic and the North Atlantic Ocean.

Barbarossa Hayrettin Pasha (Turkish: Barbaros Hayrettin Paşa or Hızır Hayrettin Paşa; also Hızır Reis before being promoted to the rank of Pasha and becoming the Kaptan-ı Derya (Fleet Admiral) of the Ottoman Navy) (c. 1478 – 4 July 1546) was an Ottoman admiral who dominated the Mediterranean for decades. He was born on the island of Lesbos/ Mytilini and died in Istanbul, the Ottoman capital.

Merchant seamen have gone on to make their mark on the world in a number of interesting ways. Traian Băsescu, who started his career as a third mate in 1976 was the President of Romania from 2004 to 2014. Arthur Phillip joined the Merchant Navy in 1751 and 37 years later founded the city of Sydney, Australia. Merchant mariner Douglass North went from seaman to navigator to winner of the 1993 Nobel Prize in Economics. Jimmy Carter went on to become the 39th President of the United States after service in the US Navy.

Members of the British Merchant Navy have won the Distinguished Service Cross and have had careers taking them from 'Deck Boy Peter' to Air Marshal Sir Beresford Peter Torrington Horsley KCB, CBE, LVO, AFC. Canadian merchant seamen have won the Victoria Cross and the Medal of Honor. American merchant seamen have won the Medal of Honor in the Korean War and Vietnam War, and one went on to become the "Father of the American Navy." One doesn't have to look far to find merchant seamen who became war heroes in Scotland, France, New Zealand, Peru, or Denmark.

Since World War II, a number of merchant seamen have become notorious criminals. American William Colepaugh was convicted as a Nazi spy in World War II and Fritz Sauckel was convicted as a Nazi war criminal. Briton Duncan Scott-Ford was hanged for treachery in World War II. George Hennard was an American mass murderer who claimed 24 victims on a rampage at Luby's Cafeteria in Killeen, Texas. And Perry Smith's own murderous rampage was made famous in Truman Capote's non-fiction novel In Cold Blood.

Ferdinand Magellan led the first expedition that circumnavigated the globe in 1519-1522. Ferdinand Magellan.jpg
Ferdinand Magellan led the first expedition that circumnavigated the globe in 1519–1522.

Mariners are well represented in the visual arts. French pilot's assistant Paul Gauguin later became a leading post-impressionist painter and pioneered modern art's synthetist style. American seaman Haskell Wexler later won two Academy Awards, the latter for a biography of his shipmate Woody Guthrie. British Merchant Navy member Ken Russell later directed films such as Tommy , Altered States and The Lair of the White Worm . Merchant seaman Johnny Craig was already a working comic book artist before he joined up, but Ernie Schroeder wouldn't start drawing comics until after returning home from World War II.

Merchant sailors have also made a splash in the world of sport. In football, with Fred Blackburn in England and the likes of Dan Devine and Heisman Trophy winner Frank Sinkwich in the U.S. In track and field, American seamen Cornelius Johnson and Jim Thorpe both won Olympic medals, though Thorpe didn't get his until 30 years after his death. Seamen Jim Bagby, Jr. and Charlie Keller went on to Major League Baseball. Drew Bundini Brown was Muhammad Ali's assistant trainer and cornerman, and Joe Gold went on to make his fortune as the bodybuilding and fitness guru of Gold's Gym.

Other sporting notables include Dutchman Henk de Velde known for sailing solo around the world, and Briton Matthew Webb who was the first person to swim the English Channel without the use of artificial aid.

Irish Merchant Navy member Kevin McClory spent 14 days in a lifeboat and later went on to write the James Bond movies Never Say Never Again and Thunderball. Members of the American Beat Movement Allen Ginsberg, Jack Kerouac, Bob Kaufman, and Herbert Huncke were all Merchant Mariners.

It is perhaps not surprising that the writers of Moby Dick, The American Practical Navigator, and Two Years Before the Mast were Merchant Mariners. It might be surprising that the writers of Borat, A Hard Day's Night, and Cool Hand Luke were.

A number of U.S. Merchant Mariners from World War II later played well known television characters. The list includes Milburn Drysdale on The Beverly Hillbillies, Archie Bunker on All in the Family, Peter Falk on Columbo, Jim Rockford on The Rockford Files, Steve McGarret on Hawaii Five-O, Uncle Jesse Duke on The Dukes of Hazzard and Cheyenne Bodie on Cheyenne.

Other uses

Statue of a Mexican Navy sailor at the Naval History Museum. SailorNHMDF.JPG
Statue of a Mexican Navy sailor at the Naval History Museum.

An ancient term, the word "sailor" has come to mean many things. Sailor may refer to:

See also


  1. On smaller vessels with a single mate 6 hours on and 6 hours off are common. Mariners employed on Great Lakes ships work 60 days and have 30 days off. They do not work in the winter when the lakes are frozen. Workers on rivers, on canals, and in harbors are more likely to have year-round work. Some work 8-hour or 12-hour shifts and go home every day. Others work steadily for a week or a month and then have an extended period off. When working, they usually are on duty for 6 or 12 hours and off for 6 or 12 hours. Those on smaller vessels are normally assigned to one vessel and have steady employment.

Related Research Articles

Maritime transport

Maritime transport and fluvial transport, or more generally waterborne transport, is the transport of people (passengers) or goods (cargo) via waterways. Freight transport by sea has been widely used throughout recorded history. The advent of aviation has diminished the importance of sea travel for passengers, though it is still popular for short trips and pleasure cruises. Transport by water is cheaper than transport by air, despite fluctuating exchange rates and a fee placed on top of freighting charges for carrier companies known as the currency adjustment factor (CAF). Maritime transport actually accounts for roughly 80% of international trade, as opposed to other modes of transportation, according to UNCTAD in 2020.

United States Merchant Marine U.S. civilian mariners

The United States Merchant Marine refers to either United States civilian mariners, or to U.S. civilian and federally owned merchant vessels. Both the civilian mariners and the merchant vessels are managed by a combination of the government and private sectors, and engage in commerce or transportation of goods and services in and out of the navigable waters of the United States. The Merchant Marine primarily transports cargo and passengers during peacetime; in times of war, the Merchant Marine can be an auxiliary to the United States Navy, and can be called upon to deliver military personnel and materiel for the military. Merchant Marine officers may also be commissioned as military officers by the Department of Defense. This is commonly achieved by commissioning unlimited tonnage Merchant Marine officers as Strategic Sealift Officers in the United States Navy Reserve.

Merchant Navy (United Kingdom) Merchant marine service of the United Kingdom

The Merchant Navy is the maritime register of the United Kingdom and comprises the seagoing commercial interests of UK-registered ships and their crews. Merchant Navy vessels fly the Red Ensign and are regulated by the Maritime and Coastguard Agency (MCA). King George V bestowed the title of "Merchant Navy" on the British merchant shipping fleets following their service in the First World War; a number of other nations have since adopted the title. Previously it had been known as the Mercantile Marine or Merchant Service, although the term "Merchant Navy" was already informally used from the 19th century.

Boatswain Supervisor of a ships deck department

A boatswain, bo's'n, bos'n, or bosun, also known as a Petty Officer, deck boss, or a qualified member of the deck department, is the seniormost rate of the deck department and is responsible for the components of a ship's hull. The boatswain supervises the other members of the ship's deck department, and typically is not a watchstander, except on vessels with small crews. Additional duties vary depending upon ship, crew, and circumstances.

Chief mate Licensed mariner and head of the deck department of a merchant ship

A chief mate (C/M) or chief officer, usually also synonymous with the first mate or first officer, is a licensed mariner and head of the deck department of a merchant ship. The chief mate is customarily a watchstander and is in charge of the ship's cargo and deck crew. The actual title used will vary by ship's employment, by type of ship, by nationality, and by trade: for instance, chief mate is not usually used in the Commonwealth, although chief officer and first mate are; on passenger ships, the first officer may be a separate position from that of the chief officer that is junior to the latter.

A second mate or second officer (2/O) is a licensed member of the deck department of a merchant ship holding a Second Mates Certificate of Competency, which is issued by the administration. The second mate is the third in command and a watchkeeping officer, customarily the ship's navigator. Other duties vary, but the second mate is often the medical officer and in charge of maintaining distress signaling equipment. On oil tankers, the second mate usually assists the chief mate with the Cargo operations.

Third mate

A third mate (3/M) or third officer is a licensed member of the deck department of a merchant ship. The third mate is a watchstander and customarily the ship's safety officer and fourth-in-command. The position is junior to a second mate. Other duties vary depending on the type of ship, its crewing, and other factors.

Deck department

The deck department is an organisational team on board naval and merchant ships. The department and its manning requirements, including the responsibilities of each rank are regulated within the STCW Convention. The department is led by deck officers, who are licensed mariners and they are commanded overall by the ship's captain. Seafarers in the deck department work a variety of jobs on a ship or vessel, but primarily they will carry out the navigation of a vessel, from the bridge. However, they are usually also responsible for supervising and monitoring any maritime cargo onboard, as well as ensuring maintenance of the deck and upper hull structure, monitoring the stability of the ship including loading and discharging ballast water, carrying out mooring operations and finally anchoring a ship.

Seafaring is a tradition that encompasses a variety of professions and ranks. Each of these roles carries unique responsibilities that are integral to the successful operation of a seafaring vessel. A ship's crew can generally be divided into four main categories: the deck department, the engineering department, the steward's department, and other. The reasoning behind this is that a ship's bridge, filled with sophisticated navigational equipment, requires skills differing from those used on deck operations – such as berthing, cargo and/or military devices – which in turn requires skills different from those used in a ship's engine room and propulsion, and so on.


Hawsepiper is an informal maritime industry term used to refer to a merchant ship's officer who began his or her career as an unlicensed merchant seaman and did not attend a traditional maritime college or academy to earn an officer's license. In the United States after accumulating enough sea time in a qualified rating, taking required training courses, and completing on-board assessments, the mariner can apply to the United States Coast Guard for a license as a Third Mate or Third Assistant Engineer. If approved, the applicant must then pass a comprehensive license examination before being issued the license. The U.S. military rough equivalent to this term is mustang.

Seafarers International Union of North America

The Seafarers International Union or SIU is an organization of 12 autonomous labor unions of mariners, fishermen and boatmen working aboard vessels flagged in the United States or Canada. Michael Sacco has been its president since 1988. The organization has an estimated 35,498 members and is the largest maritime labor organization in the United States. Organizers founded the union on October 14, 1938. The Seafarers International Union arose from a charter issued to the Sailors Union of the Pacific by the American Federation of Labor as a foil against loss of jobs to the Congress of Industrial Organizations (CIO) and its Communist Party-aligned faction.

A second engineer or first assistant engineer is a licensed member of the engineering department on a merchant vessel. This title is used for the person on a ship responsible for supervising the daily maintenance and operation of the engine department. They report directly to the chief engineer.

Wiper (occupation)

A wiper is the most junior rate in the engine room of a ship. The role of a wiper consists of cleaning the engine spaces and machinery, and assisting the engineers as directed. The position is an apprenticeship to become an oiler. In modern times, a wiper is required to work on a ship for a specific amount of time, gaining what is referred to as "sea time."

Able seaman

An able seaman (AB) is a naval rating of the deck department of a merchant ship with more than two years' experience at sea and considered "well acquainted with his duty". An AB may work as a watchstander, a day worker, or a combination of these roles. Once a sufficient amount of sea time is acquired, then the AB can apply to take a series of courses/examinations to become certified as an officer.

An ordinary seaman (OS) is a naval rating of the deck department of a ship. The position is an apprenticeship to become an able seaman, and has been for centuries. In modern times, an OS is required to work on a ship for a specific amount of time, gaining what is referred to as "sea time". For centuries, the term ordinary seaman was used to refer to a seaman with between one and two years' experience at sea, who showed enough seamanship to be so rated by their captain. Historically in some navies and the merchant marine a sailor with less experience was called a landsman.

Licensed mariner Sailor who holds a license from a maritime authority to hold senior officer-level positions

A licensed mariner is a sailor who holds a license from a maritime authority to hold senior officer-level positions aboard ships, boats, and similar vessels. Qualification standards for licensed mariners are universally set by the STCW Convention adopted and promulgated by the International Maritime Organization (IMO), while the licenses of individual sailors are issued by the delegated maritime authorities of the member states of the IMO; these may vary in the details of the implementation, including the government agency responsible for licensing and the local names of the grades and qualifications in each particular country.

The United States merchant marine forces matured during the maritime history of the United States (1900–1999).


A pumpman is an unlicensed member of the Deck Department of a merchant ship. Pumpmen are found almost exclusively on tankers, and on oil tankers in particular. Variations on the title can include chief pumpman, QMED/pumpman, and second pumpman.

Filipino seamen

Filipino seamen, also referred to as Filipino seafarers or Filipino sailors, are seamen, sailors, or seafarers from the Philippines. Although, in general, the term "Filipino seamen" may include personnel from the Philippine Navy or the Philippine Marine Corps, it specifically refers to overseas Filipinos who are "sea-based migrant Filipino workers".

British merchant seamen of World War II

Merchant seamen crewed the ships of the British Merchant Navy which kept the United Kingdom supplied with raw materials, arms, ammunition, fuel, food and all of the necessities of a nation at war throughout World War II — literally enabling the country to defend itself. In doing this, they sustained a considerably greater casualty rate than almost every other branch of the armed services and suffered great hardship. Seamen were aged from fourteen through to their late seventies.


  1. Maritime seagoing career – offshore and onshore
    • "Water Transportation Occupations". U.S. Department of Labor, Bureau of Labor Statistics. Retrieved 2007-03-31.