Maritime Chain of Command & Rank Descriptions
Oct 27, 2025

Deck Department

‣Captain (Master) – The highest authority on board. Responsible for the entire ship, crew, cargo, and safe navigation.
‣Chief Officer – Second-in-command. Manages the deck crew, cargo loading and unloading, and ensures the ship’s stability and safety.
‣Second Officer – Navigation officer. Prepares voyage plans, updates charts, and handles safety and navigation equipment.
‣Third Officer – Responsible for life-saving and fire-fighting equipment. Assists in watchkeeping and navigation.
‣Deck Cadet – An apprentice officer. Learn navigation, bridge watchkeeping, and ship operations.
‣Bosun – Leader of the deck ratings. Supervises maintenance work, painting, mooring, and deck operations.
‣Able Seaman (AB) – Skilled deck crew member. Stands watch, assists in mooring, steering, and maintenance.
‣Ordinary Seaman (OS) – Entry-level deck worker. Assists ABs and learns basic seamanship duties.

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Engine Department

‣Chief Engineer – Head of the engine department. In charge of all machinery, engine room operations, and technical safety.
‣Second Engineer – Assistant to the Chief Engineer. Oversees day-to-day engine room activities and maintenance schedules.
‣Third Engineer – Maintains main engines, pumps, and fuel systems. Assists in engine watchkeeping.
‣Fourth Engineer – Handles auxiliary engines, purifiers, and daily machinery checks.
‣Engine Cadet – Trainee engineer. Observes and assists in engine room operations and machinery maintenance.
‣Oiler – Lubricates machinery and assists engineers in engine watch and maintenance duties.
‣Fitter – Skilled technician. Performs welding, repairs, and fabrication of metal parts and pipes.
‣Wiper – Entry-level engine crew. Keeps the engine room clean and assists Oilers and Fitters.

‣Electro-Technical Officer (ETO) – Responsible for electrical, electronic, automation, and communication systems on board.
‣Electrical Cadet – Assists the ETO and learns electrical maintenance and troubleshooting.

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Catering / Galley Department

Chief Cook – Manages the galley. Prepares meals, plans menus, and ensures food hygiene and storage.
Messman – Assists the cook, serves meals, and maintains cleanliness in the mess hall and crew accommodation.

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