Merchant Navy Rankings and Hierarchy

A Guide to The Departments of the Merchant Navy

The Merchant Navy is a vital component of the global shipping industry and provides a unique and rewarding career path for those interested in maritime operations and commerce. With its complex and diverse range of departments, the Merchant Navy offers a wide range of opportunities for individuals seeking to advance their careers in the maritime sector.

This comprehensive guide explores some of the key departments within the Merchant Navy and the roles that individuals can expect to take on as they progress in their careers. From the Deck department, responsible for the navigation and safety of the ship, to the Engineering department, tasked with maintaining the ship’s machinery and systems, we provide a comprehensive overview of the different departments and the career paths they offer.

For those interested in electrical systems, we also delve into the Electrotechnical department, which plays a vital role in ensuring the safe and efficient operation of the ship’s electrical systems. And for those interested in management and administration, we examine the Purser department, which is responsible for managing the financial aspects of the ship’s operations, as well as the provision of supplies and stores.

Finally, we look at the Medical department, which plays a critical role in ensuring the health and well-being of the crew and passengers. With its wide range of roles and responsibilities, the Merchant Navy offers a wealth of opportunities for those seeking a challenging and rewarding career in the maritime sector.

Whether you are just starting out in your career or are looking to advance to higher levels of responsibility, the Merchant Navy offers a dynamic and exciting career path for those who are passionate about the sea. 

Departments of the Merchant Navy

Typical merchant navy on-board hierarchy infographic.
Typical merchant navy on-board hierarchy infographic.
Deck Officers Engineer OfficersElectrical Technical OfficersShip’s Medical OfficersSteward’s Department Officers
MasterChief Engineer
Chief OfficerSecond EngineerChief ETOShip’s SurgeonChief Purser
Second OfficerThird EngineerETOShip’s Doctor or DentistPurser
Third OfficerFourth EngineerShip’s NurseAssistant Purser
Cadet Deck OfficerCadet Engineer OfficerCadet Electrical Officer
Typical merchant navy on-board hierarchy in table format.

Deck Department

The Deck department is one of the most critical departments on a merchant’s vessel. It is responsible for the ship’s navigation, maintenance and operation, as well as the safety of the crew and passengers.

The primary function of the Deck department is to navigate the ship safely from one port to another. This includes monitoring weather patterns, charting courses, and adjusting the ship’s speed and direction. The Deck department is also responsible for maintaining the ship’s deck, including the hull, deck fittings, and cargo gear.

In addition to navigation and maintenance, the Deck department is responsible for ensuring the safety of the crew and passengers. This includes maintaining life-saving equipment such as lifeboats and life rafts and conducting safety drills to ensure everyone on board knows what to do in an emergency situation.

The Deck department is headed by the Captain, who is the ultimate authority on the ship and is responsible for making all critical decisions regarding the ship’s operation. Other key members of the Deck department include the First Mate, Second Mate, and Third Mate, who are responsible for navigation and the overall operation of the ship, and the Deckhands, who carry out the physical tasks such as cleaning and maintaining the deck.

Overall, the Deck department plays a crucial role in the smooth operation of a merchant’s vessel, and the experience and expertise of its members are essential to the safety and success of each voyage.

Engineering Department

The Engineering department is a critical component of the merchant navy, responsible for maintaining and operating the ship’s machinery and equipment. The department is responsible for ensuring that the ship’s engines, generators, boilers, and other mechanical systems are in good working order and for repairing any malfunctions that may occur during the voyage.

The Engineering department is responsible for the smooth and efficient operation of the ship’s propulsion system, which is essential for the ship’s ability to move and manoeuvre in the water. This includes monitoring the ship’s fuel consumption, ensuring that the engines and other mechanical systems are running at peak efficiency, and making necessary repairs or adjustments.

The Engineering department is also responsible for maintaining the ship’s electrical systems, including generators, transformers, switchboards, and lighting systems. This requires a thorough knowledge of electrical systems and the ability to diagnose and repair problems as they arise.

The department is headed by the Chief Engineer, who oversees the entire department and ensures that all systems are running smoothly. Other key members of the Engineering department include the Second Engineer, Third Engineer, and Engine Room rating, who are responsible for carrying out maintenance tasks and responding to any technical issues that may arise.

Overall, the Engineering department plays a vital role in the safe and efficient operation of a merchant’s vessel. The department’s expertise in mechanical and electrical systems is essential to successfully completing each voyage.

Electrical Department 

The Electrotechnical department, also known as the Electrical department, is responsible for maintaining and operating the ship’s electrical systems. This includes the ship’s electrical power generation and distribution systems, lighting systems, and all other electrical equipment on board.

The primary function of the Electrotechnical department is to ensure that the ship’s electrical systems are operating safely and efficiently at all times. This includes monitoring and maintaining the ship’s electrical generators, transformers, switchboards, and lighting systems and conducting routine inspections and repairs to keep the systems in good working order.

The department is also responsible for ensuring that the ship’s electrical systems comply with all applicable safety regulations and standards. This includes conducting regular safety checks and testing of the ship’s electrical systems to ensure they are in good condition and working properly.

The Electrotechnical department is typically headed by the Chief Electrician, who oversees the entire department and ensures that all electrical systems are functioning correctly. Other key members of the Electrotechnical department include Electricians and electricians Mates, who carry out maintenance tasks and respond to any electrical issues that may arise.

Overall, the Electrotechnical department is an essential component of a merchant’s vessel, and the expertise of its members is critical to the safe and efficient operation of the ship’s electrical systems. The department plays a key role in ensuring that the ship’s electrical systems are in good working order and that the ship can operate safely at all times.

Purser Department 

The Purser department is responsible for the administration and management of a merchant vessel. It is responsible for a wide range of tasks, including financial and accounting functions, as well as the management of the ship’s stores and supplies.

The primary function of the Purser department is to manage the financial aspects of the ship’s operations, including budgeting, accounting, and financial reporting. This includes tracking the ship’s expenses, managing the crew’s payroll, and ensuring that all financial records are kept up-to-date and accurate.

The department is also responsible for managing the ship’s stores and supplies, including food, provisions, and other necessities needed for the voyage. This involves ordering and stocking supplies, managing inventory levels, and ensuring that the ship has enough supplies to last throughout the voyage.

The Purser department is typically headed by the Purser, who oversees the entire department and ensures that all tasks are carried out efficiently and effectively. Other key members of the Purser department include the Assistant Purser, the Steward, and the Cook, who are responsible for carrying out specific tasks within the department.

Overall, the Purser department plays a critical role in the successful operation of a merchant’s vessel. The department’s expertise in financial management, supply chain management, and administration is essential to the smooth and efficient running of the ship and the safety of the crew and passengers.

Medical Department

The Medical department on a merchant’s vessel is responsible for the health and well-being of the crew and passengers. The department is responsible for providing medical care and assistance in the event of an illness or injury on board the ship.

The primary function of the Medical department is to provide medical care and treatment to anyone on board the ship who requires it. This includes diagnosing and treating illnesses, administering first aid in the event of an injury, and dispensing medication as needed. The department is also responsible for monitoring the health of the crew and passengers and taking appropriate action if any health issues arise.

In addition to providing medical care, the Medical department is also responsible for maintaining the ship’s medical supplies and equipment. This includes ensuring that the ship is equipped with adequate medical supplies, such as bandages, medicine, and first-aid equipment, and that the equipment is in good working order.

The Medical department is typically headed by the Ship’s Doctor, who oversees the entire department and ensures that all medical care and treatments are provided safely and professionally. Other key members of the Medical department may include a nurse or medical assistant, who is responsible for assisting the Ship’s Doctor and carrying out specific medical tasks as needed.

Overall, the Medical department plays a crucial role in ensuring the health and safety of the crew and passengers on a merchant’s vessel. The department’s expertise in providing medical care and treatment is essential to the successful operation of the ship and the well-being of all on board.

Thinking of Joining the Merchant Navy?

For those considering joining the merchant navy, be sure to check out our guides to becoming an officer:

Guide to Becoming a Deck Officer In the Merchant Navy 2023

Guide to Becoming an Electrotechnical Officer In the Merchant Navy 2023

Guide to Becoming an Engineering Officer In the Merchant Navy 2023

Born and raised in Dover, UK, P. Roberts has a deep understanding of the complexities of the industry and has dedicated his career to promoting safety through training. With a strong belief in the importance of standardised training for all, P. Roberts has made it his mission to help people achieve their aspirations and succeed in the maritime industry. His passion for this cause has earned him a well-deserved reputation as a mentor and advocate for those seeking to enter the field. P. Roberts' contributions to the industry have been invaluable, and his insights and knowledge are widely sought after by both novices and seasoned professionals alike.
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