shippingposition
  • Home
  • News
  • Editorial
    • Vox Pop
  • Maritime safety
  • Oil and Gas
  • Personality
  • Health
No Result
View All Result
shippingposition

Home » QUESTION OF THE WEEK: What is the crew structure on board merchant vessels?

QUESTION OF THE WEEK: What is the crew structure on board merchant vessels?

by Joshua
March 15, 2021
in Maritime Education

Life on board of a vessel is very different from any other shore based jobs or organization. Each crew member has a precise rank and carries certain responsibilities in order to maintain the vessel operations successful.

Mainly, the vessel’s crew has two types of seafarers: officers and ratings. Both these types of crew members have the capacity to work either on deck or in the engine room.

The Deck crew is in charge with the vessel navigation, watch keeping, maintaining the ship’s hull, cargo, gear and accommodation, taking care of the ship’s life-saving and fire-fighting appliances. The deck department is also the one in charge with receiving, discharging and caring for cargo.

According to the vessel’s hierarchy, the deck officers are as follows: Master, Chief Officer, Second Officer, Third Officer and Deck Cadet (deck officer to be).

The supreme authority on board a merchant vessel is the Master. The entire crew is under his command. He is responsible for the safety, use and maintenance of the vessel and makes sure that every crew member carries out his work accordingly. He is also in charge of the following: payroll, ship’s accounting, inventories, custom and immigration regulations, and the ship’s documentation. In order to become Master, a seafarer must first have several years of experience as a deck officer and as Chief Officer.

According to the vessel’s hierarchy, the first deck officer and the head of the deck department after the Master is the Chief Officer or Chief Mate. He is in charge with the vessel navigation, watch duties, charging and discharging operations. The Chief Officer also directs all the other officers on deck, creates and posts watch assignments and implements the Master’s orders in order to maintain safe operations and maintenance of the vessel.

Second Officer or Second Mate is the next in rank after the Chief Mate and is the ship’s navigator, focusing on creating the ship’s passage plans and keeping charts and publications up to date. Apart from watch keeping, the Second Officer may also be designated to train the cadets on board or to fulfill the rank of security, safety, environmental or medical officer.

The Third Officer or Third Mate is the fourth deck officer in command and is usually the Ship’s Safety Officer, responsible with ensuring the good functioning of the fire-fighting equipment and life-saving appliances. He undertakes bridge watches and learns how to become a Second Officer.

A Cadet on board a merchant vessel receives structured training and experience on board and learns how to become a deck officer.

Apart from the officers, the deck department crew also consists of ratings, such as AB (Able Body Seaman), OS (Ordinary Seaman) and Boatswain.

The AB is part of the deck crew and has duties such as: taking watches, steering the vessel, assisting the Officer on watch, mooring and unmooring the vessel, deck maintenance and cleaning. The AB also secures and un-secures the cargo and carries our deck and accommodation patrols.

OS is the crew member whose main duty is to maintain the cleanliness of the whole ship and serves as assistant for the AB. Being an OS is considered to be an apprenticeship, a period called “sea time” in order to be allowed to take courses and training for AB.

Both AB and OS are usually supervised by a Boatswain, who is also a rating, in charge with examining the cargo-handling gear and lifesaving equipment as well. The Boatswain usually holds an AB certificate as well.

The structure for the deck department on board merchant vessels is mainly the same on all vessel types


Related Posts

When Freight Fraud Becomes A Service

When Freight Fraud Becomes A Service

March 23, 2026
IMO Invites Shipping Companies To Join The Nextwave Alliance To Upskill Seafarers

IMO Invites Shipping Companies To Join The Nextwave Alliance To Upskill Seafarers

March 23, 2026
COWA Inducts 250 Students To Promote Environmental Responsibility In Ogun

COWA Inducts 250 Students To Promote Environmental Responsibility In Ogun

March 23, 2026
QUESTION OF THE WEEK:  Why Do Ships Need A Marine Pilot?

QUESTION OF THE WEEK: Do You Know Why Ships Need A Marine Pilot?

March 16, 2026

Discussion about this post

Latest News

Deleting the Gatekeepers: How Dantsoho is Coding-Out Corruption at Nigeria’s Ports

NPA Moves to Reset Port Concession Framework as Datsoho Calls for Patience on Renewal Delays

April 6, 2026

Nigerian Barge Firms Shrink from 83 to Eight as FG Orders Review

Over 180 Danish Firms Eye Nigeria’s Maritime Sector, Signal Strong Investment Confidence

Tinubu Commissions NCS FOU ‘A’ Complex in Ogun, Signals Boost for Customs Modernisation, Officers’ Welfare

NDLEA Intercepts Cocaine, Arrests Kingpin In Lagos

CRFFN Launches Digital Complaints Platform to Tackle Port Inefficiencies, Boost Accountability

NIMASA DG Mobereola Urges Reflection, Renewal at Easter

Easter: ANLCA Tin Can Chairman Cole Calls for Unity, Sacrifice Among Maritime Stakeholders

Easter: MWUN President-General Bunu, NLC Deputy President Adeyanju Call for Peace, Unity, End to Violence

Gateway Airport Drives Trade Growth with Cargo Capacity, Regional Air Links

CMSN Inducts 40 Professionals, Boosts Local Capacity in Marine Surveying

Lagos Moves to Tap ECOWAS Trade Potential as Private Sector Pushes for Designated Transport Hubs

kindly like our Facebook page

Health

Report Finds Hypertension Affects Up To 40% Of Nigerian Adults In 2025
Health

Stress Management: Psychiatrist Identifies Effective Coping Mechanisms

March 16, 2026

A consultant Psychiatrist, Dr Stephen Oluwaniyi, has identified stress as a risk factor for developing mental health conditions, advising that...

Report Finds Hypertension Affects Up To 40% Of Nigerian Adults In 2025

Report Finds Hypertension Affects Up To 40% Of Nigerian Adults In 2025

March 16, 2026
Lemons Are Among Fruits That Have The Highest Healing Powers Of Diseases On Earth

Lemons Are Among Fruits That Have The Highest Healing Powers Of Diseases On Earth

March 9, 2026
Nigeria Reports Higher Lassa Fever Death Rate

Nigeria Reports Higher Lassa Fever Death Rate

March 9, 2026
The Big Question: Can Diabetes Be Reversed?

Some Early Warning Signs of Diabetes That You Don’t Know, But Should

March 2, 2026
Why Your Favourite Seasoning Cubes May Be Hurting Your Kidneys

Why Your Favourite Seasoning Cubes May Be Hurting Your Kidneys

February 23, 2026
SHOCKING: FIIRO Links High Rates of Organ Failure, Cardiovascular Diseases in Nigeria to Local Grinding Machines

SHOCKING: FIIRO Links High Rates of Organ Failure, Cardiovascular Diseases in Nigeria to Local Grinding Machines

February 23, 2026
MONDAY INTERVIEW: Oyebamiji Did Not See The Media As Adversaries, But As Partners In Development”—Minister Oyetola

DANGER: 11% Of Nigerians Have Kidney Disease – Experts

February 16, 2026
Snakebite Envenoming, Silent Killer In Nigeria – Expert Warns

Snakebite Envenoming, Silent Killer In Nigeria – Expert Warns

February 9, 2026
World Cancer Day: Cancer Not Always Death Sentence  Says Oncologist

World Cancer Day: Cancer Not Always Death Sentence  Says Oncologist

February 9, 2026

© 2021 Shippingposition

Navigate Site

  • Home
  • About Us
  • Contact us
  • Privacy Policy
  • Editorial Policy
  • Sitemap
  • Terms

Follow Us

No Result
View All Result
  • News
  • Coast To Coast
  • Oil and Gas
  • Maritime Education
  • The Terminals
  • Maritime safety

© 2021 Shippingposition