Duties of an Electro-Technical Officer (ETO)
Jan 28, 2026



Duties of an Electro-Technical Officer (ETO)

An Electro-Technical Officer (ETO) plays a critical role in ensuring the safe and efficient operation of a vessel’s electrical, electronic, and automation systems. As a key member of the engine department, the ETO is responsible for maintaining essential equipment that supports navigation, cargo operations, safety systems, and onboard living conditions.

The ETO is in charge of the ship’s electric motors and power distribution systems, ensuring that machinery operates reliably at all times. This includes the maintenance and monitoring of the main and emergency switchboards, which are vital for uninterrupted electrical supply during both normal operations and emergency situations.

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Mooring Equipment

Mooring Equipment plays a critical role in ensuring the safe berthing and securing of vessels in ports and terminals. Designed to handle heavy loads and dynamic forces, these fittings guide, control, and hold mooring lines in place while minimizing wear and operational risk. Double Bollards ‣Used for securing mooring lines on deck; allows multiple lines to be fastened and provides strong holding capacity during berthing. Mooring Roller ‣Guides mooring lines smoothly during heaving or paying out, reducing friction and preventing line damage. Horn Cleat ‣Simple deck fitting used to secure light mooring lines or ropes by wrapping them around its two horns. Panama Bow Curved Bulwark ‣Reinforced bow fitting designed to guide mooring lines safely over the ship’s bulwark with minimal wear. Cruciform Bollard ‣Cross-shaped bollard that allows multiple mooring lines to be secured from different directions. Smit Bracket ‣Heavy-duty fitting used for towing operations; guides towing lines and absorbs high towing loads.

VHF Marine Radio Channels

This VHF Marine Radio Channels guide presents a clear and practical overview of how Very High Frequency (VHF) radio channels are organized and used in maritime communication. It is designed to help seafarers, maritime students, and industry professionals quickly understand the correct use of each channel in daily operations and emergency situations. At the center of the guide is Channel 16, the internationally recognized channel for distress, safety, and calling, highlighting its vital role in emergency alerts and initial contact between vessels and shore stations. The diagram groups channels according to their operational purpose, including search and rescue (SAR), ship-to-ship safety information, port operations, commercial vessel communications, professional fishing vessels, recreational vessels, and maritime safety organizations. It also identifies channels dedicated to Digital Selective Calling (DSC) and VHF repeaters, supporting efficient distress alerting and extended communication coverage. Color Coding Guide: • Blue channels – Designated for ship-to-shore communications • Red channels – Used primarily for ship-to-ship communications • Black channels – Suitable for both ship-to-shore and ship-to-ship communications Overall, this guide serves as a reliable reference for proper VHF radio use, reinforcing international maritime communication standards while promoting safety, clarity, and effective coordination at sea.

Maritime Zones Explained: The Boundaries of Our Seas

The concept of maritime zones is a cornerstone of international maritime law, defined primarily by the United Nations Convention on the Law of the Sea (UNCLOS). These zones determine the extent of a coastal state’s rights, responsibilities, and jurisdiction over the waters and resources adjacent to its shores. Background • Maritime zones were established to resolve disputes over navigation, resource ownership, and national security. • Boundaries are measured from a country’s baseline (usually the low-water mark along the coast). • The key zones include: • Internal Waters – full sovereignty like land territory. • Territorial Sea – up to 12 nautical miles. • Contiguous Zone – up to 24 nautical miles. • Exclusive Economic Zone (EEZ) – up to 200 nautical miles. • Continental Shelf – may extend beyond 200 nautical miles depending on natural features. Purpose • Internal Waters – treated like land territory, full state control. • Territorial Sea (12 nm) – authority over navigation, resources, and law enforcement. • Contiguous Zone (24 nm) – enforcement against smuggling, illegal entry, and security threats. • Exclusive Economic Zone (200 nm) – exclusive rights to explore and exploit resources (fish, oil, gas). • Continental Shelf – rights over seabed resources even beyond EEZ. Importance • Safeguards national security and territorial sovereignty. • Ensures sustainable use of marine resources (fisheries, oil, gas). • Provides control over shipping routes and trade lifelines. • Strengthens sovereignty in disputed waters (vital for nations like the Philippines). • Globally, reduces conflict, promotes order and cooperation, and protects the marine environment.

UNDERSTANDING ABOUT ISPS CODE

Introduction The International Ship and Port Facility Security (ISPS) Code is a comprehensive set of measures designed to enhance the security of ships and port facilities. It was adopted by the International Maritime Organization (IMO) under the framework of the International Convention for the Safety of Life at Sea (SOLAS), specifically through an amendment introduced in December 2002. The ISPS Code officially came into force on 1 July 2004, marking a turning point in maritime safety and global security.

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