Captain’s Mode Maritime
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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
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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 verified proof of at least 360 days of sea service within the past 5 years under 46 CFR § 10.227, or pass…
Seaman’s Notes
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⚓ 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…
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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…
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⚡️ 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,…
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⚓ 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…
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🚢 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…
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Are Seafarers Going to Be Replaced by AI?
TL;DR: No. AI will change what seafarers do – not eliminate the need for them.…
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⚓ 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…
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🚢 Why Your Promotion Letter Onboard Isn’t Always Official – And What To Do About It
You worked hard the entire contract and asked for a promotion from your Chief Engineer…
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⚓ Most Common Mooring Commands & Responses Heard Over Ship Radio
Mooring a vessel is one of the most critical and potentially hazardous operations in seamanship.…
Mariner’s Handbook
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🚨 Critical Equipment on Board: Your Guide to Shipboard Systems, Failures, & Future-Proofing
Maritime operations depend on equipment that cannot fail without putting lives, cargo, or the environment…
