Captain’s Mode Maritime

Best Maritime Educational Resource

A ship captain looking out on deck from the windshield inside the ship's bridge.

Career Guide

A trainee holding a hand flare while on top of a liferaft during their basic safety training.

Health and Safety

Shipmaster saluting.

Shipboard Ranks

A seaman using inside the bridge using a binocular as the background for the book title, The Basics of Navigation..

Navigation

A seaman using his mobile phone while watching a beautiful sunset on on calm waters.

Seaman’s Life

An Officer training his crew about an important ship equipment.

Ship Knowledge

Welcome to Captain’s Mode Maritime ⚓
Your trusted source for maritime education, navigation tutorials, and seafaring insights. We publish practical guides on ship handling, navigation, practical seamanship, safety guides, and life at sea — written for cadets, deck officers, and maritime professionals seeking accurate, easy-to-follow content materials.

Recently Published

Radar Performance Monitor (PM) Testing and Blind Sector Plotting

A radar performance monitor provides a means of checking transmitter and receiver performance against a calibrated standard established during installation or commissioning. Manufacturers may provide specific procedures and intervals for conducting these checks. IMO Resolution MSC.192(79), section…
Read More

Seaman’s Notes

OOW Guide to GNSS Spoofing: Detecting and Navigating False GPS Fixes

Global Navigation Satellite System (GNSS) spoofing has become an operational reality. Operating in choke points…
USCG MMC Renewal Guide: Sea Service Rules, Grace Periods & Common Rejections

To renew a USCG Merchant Mariner Credential (MMC), mariners must submit Form CG-719B along with…
⚓ What Is Squat in Ship Navigation? Formula, Causes, & UKC Standards Explained

Squat is the increase in a ship’s draft caused by hydrodynamic sinkage as speed increases…

Restricted Visibility Checklist: What to Do When Your Ship Enters Restricted Visibility

When restricted visibility is encountered or expected, the Officer of the Watch (OOW) must act…
⚡️ Electro-Technical Officer (ETO): Responsibilities, Safety Protocols, and Career Path

An Electro-Technical Officer (ETO) is the licensed engine department officer responsible for a ship’s electrical,…
⚓ Deck Officer vs Engine Officer: Which Career Should You Pick?

Choosing between becoming a deck officer and an engine officer is one of the most…

🚢 Top 5 Detainable Deficiencies Found During USCG PSC Examinations

In 2025, the U.S. Coast Guard’s Port State Control program issued 78 vessel detentions across…
Are Seafarers Going to Be Replaced by AI?

TL;DR: No. AI will change what seafarers do – not eliminate the need for them.…
⚓ What Is a Riding Gang on a Ship? Everything Seafarers Need to Know

The riding gang, riding squad, or riding crew is one of shipping’s most misunderstood roles…

Mariner’s Handbook

Ordinary Seaman (OS) vs Able Seaman (AB): Duties, Skills, & Salary Compared

Starting a career at sea often begins with a simple question: what’s the difference between…

🤔 Would You Encourage Your Child to Pursue a Career at Sea? Seafarers Weigh In

The global maritime industry powers over 80% of international trade, but fewer young people are choosing a career at sea. Many parents- especially those who are seafarers themselves, face a…