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Basic Seamanship Course
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Basic Seamanship Course

Build the hands-on seamanship skills that keep vessels secure and crews safe. This course takes you from rope construction and knot tying through mooring operations, splicing, and cargo handling — covering everything a competent deck hand needs to perform confidently. Whether you are entering the maritime industry or sharpening existing skills, this is the practical foundation that gets you ready for real work on deck.

Dedika for students

What your team will master:

  • Tie, dress, and apply essential knots, bends, and hitches under operational time pressure.

  • Select, inspect, and maintain rope and line to prevent failure during critical deck tasks.

  • Plan and execute mooring evolutions, including line sequencing, fittings, and tidal adjustments.

  • Construct eye, back, and short splices in three-strand and braided line to full working strength.

  • Apply structured risk assessment and emergency procedures to high-risk deck scenarios.

  • Rig cargo slings, temporary lifelines, and tackle systems safely using correct mechanical advantage.

How your team learns in practice Basic Seamanship Course

How your team practises Basic Seamanship Course

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Course content

8 Chapters • 37 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Maritime Safety and Seamanship Basics

  • Lesson 1 • Personal Protective Equipment for Deck Work

    Covers selection, fitting, and maintenance of PPE used in deck operations. Correct PPE use underpins every practical skill taught in the course.

  • Lesson 2 • Basic Maritime Communication

    Teaches standard verbal commands, hand signals, and radio protocols used on deck. Clear communication prevents accidents during mooring and cargo operations.

  • Lesson 3 • Emergency Procedures and Man-Overboard Response

    Covers immediate actions for common deck emergencies, with emphasis on man-overboard drills. Students gain confidence to act decisively before professional help arrives.

  • Lesson 4 • The Deck Environment and Hazards

    Introduces the physical layout of a working deck and its inherent risks. Builds situational awareness essential for all subsequent hands-on operations.

Chapter 2See details

Rope and Line Fundamentals

  • Lesson 1 • Rope Inspection and Maintenance

    Teaches systematic inspection for wear, UV damage, and chemical degradation. Proper maintenance prevents catastrophic line failure during mooring and towing.

  • Lesson 2 • Whipping and Seizing Rope Ends

    Covers common whipping and seizing methods to prevent rope ends from fraying. These finishing skills protect line integrity and are required before knot tying practice.

  • Lesson 3 • Coiling, Flaking, and Handling Lines

    Develops correct techniques for managing line on deck without kinks or tangles. Efficient line handling is prerequisite to fast, safe mooring and anchoring operations.

  • Lesson 4 • Rope Construction and Materials

    Examines natural and synthetic fibre types, lay, and braid construction. Understanding construction directly informs correct selection and safe working load calculations.

Chapter 3See details

Essential Knots and Bends

  • Lesson 1 • Stopper and Loop Knots

    Covers figure-eight, overhand, and bowline as foundational stopper and loop knots. These knots appear in mooring, rigging, and rescue scenarios throughout the course.

  • Lesson 2 • Knot Anatomy and Tying Principles

    Introduces the working end, standing part, bight, and loop as universal knot vocabulary. Mastery of these concepts accelerates learning of every subsequent knot.

  • Lesson 3 • Bends for Joining Lines

    Teaches sheet bend, double sheet bend, and carrick bend for joining lines of equal or unequal diameter. Correct bend selection prevents slippage under dynamic mooring loads.

  • Lesson 4 • Hitches for Securing to Fittings

    Develops cleat hitch, clove hitch, round turn and two half hitches, and rolling hitch skills. Hitches are the primary means of securing lines to cleats, bollards, and spars.

  • Lesson 5 • Specialized Seamanship Knots

    Introduces the anchor bend, tugboat hitch, and sheepshank for specific operational needs. Students practice selecting and tying these knots in simulated deck scenarios.

Chapter 4See details

Splicing and Advanced Line Work

  • Lesson 1 • Splicing Tools and Preparation

    Covers marlinspikes, fids, Swedish fids, and tape for splice preparation. Correct tool use and strand preparation determine splice quality and holding strength.

  • Lesson 2 • Braided Line Splicing Techniques

    Introduces eye splice methods for double-braid and single-braid lines using hollow fids. Braided lines are standard on modern vessels, making this skill commercially essential.

  • Lesson 3 • Back Splice and Short Splice

    Teaches back splice as a permanent rope-end finish and short splice for joining two lines. Both splices eliminate the need for knots where maximum strength is required.

  • Lesson 4 • Eye Splice in Three-Strand Rope

    Step-by-step construction of a permanent eye at the end of three-strand rope. The eye splice is the strongest fixed loop used in mooring pendants and rigging.

Chapter 5See details

Mooring Lines and Deck Fittings

  • Lesson 1 • Chafing Gear and Line Protection

    Covers selection and application of chafing gear to protect lines at high-wear contact points. Adequate chafe protection is mandatory for extended alongside or anchorage stays.

  • Lesson 2 • Deck Fittings: Cleats, Bitts, and Bollards

    Covers identification, load ratings, and correct line-securing methods for all common deck fittings. Improper use of fittings is a leading cause of mooring failures.

  • Lesson 3 • Fairleads, Chocks, and Rollers

    Explains how fairleads and chocks guide lines to reduce chafe and maintain correct lead angles. Correct lead angle preserves line life and fitting integrity under load.

  • Lesson 4 • Mooring Line Nomenclature and Function

    Defines breast lines, springs, headlines, and sternlines and their roles in holding a vessel. Understanding line function is prerequisite to planning and executing any mooring.

  • Lesson 5 • Mooring Winches and Capstans

    Introduces manual and powered mooring winches, capstans, and their safe operating procedures. Winch misuse causes the majority of serious deck injuries during mooring.

Chapter 6See details

Mooring Operations: Alongside and at Anchor

  • Lesson 1 • Unmooring and Slipping Procedures

    Covers the safe sequence for letting go lines and slipping from a berth or anchorage. Controlled unmooring prevents line snap-back and vessel contact with the berth.

  • Lesson 2 • Heaving Lines and Messenger Lines

    Teaches accurate heaving line throws and the use of messenger lines to pass heavy mooring lines ashore. This skill bridges the vessel and shore during every berthing evolution.

  • Lesson 3 • Pre-Mooring Planning and Briefing

    Covers berth assessment, tidal and wind analysis, and crew task assignment before arrival. Thorough pre-mooring planning reduces errors and improves team coordination.

  • Lesson 4 • Securing Lines Alongside

    Covers the sequence for making fast breast lines, springs, and headlines during alongside berthing. Correct sequence prevents vessel movement that endangers crew and infrastructure.

  • Lesson 5 • Anchoring Procedures and Ground Tackle

    Introduces anchor types, chain scope calculation, and the anchoring sequence from approach to set. Proper scope and holding ground selection determine anchor holding power.

Chapter 7See details

Deck Seamanship: Rigging and Cargo Handling

  • Lesson 1 • Crane and Derrick Deck Signals

    Develops proficiency in standard hand signals used to direct crane and derrick operators. Accurate signalling is the primary safety control during all lifting operations on deck.

  • Lesson 2 • Securing Deck Cargo and Lashing

    Covers lashing patterns, tensioning devices, and securing points for deck cargo. Inadequate cargo securing is a primary cause of cargo loss and vessel stability incidents.

  • Lesson 3 • Cargo Slings, Nets, and Strops

    Teaches selection and rigging of wire and rope slings, cargo nets, and synthetic strops. Correct sling angle and load distribution prevent cargo drops and equipment damage.

  • Lesson 4 • Rigging Temporary Lifelines and Jackstays

    Covers tensioning and securing temporary lifelines and jackstays for working over the side. Properly rigged lifelines are a regulatory requirement during overside work.

  • Lesson 5 • Blocks, Tackles, and Mechanical Advantage

    Explains block types, sheave sizing, and how tackle arrangements multiply hauling force. Mechanical advantage calculations are essential for safe manual lifting on deck.

Chapter 8See details

Advanced Seamanship and Operational Judgment

  • Lesson 1 • Operational Risk Assessment on Deck

    Applies structured risk assessment to novel and high-risk deck tasks before execution. Students produce written risk assessments and identify critical control measures.

  • Lesson 2 • Mooring in Adverse Weather Conditions

    Applies mooring techniques to high-wind, strong-current, and heavy-swell scenarios. Students develop contingency plans and adapt line arrangements to dynamic environmental forces.

  • Lesson 3 • Towing Operations: Deck Crew Role

    Covers the deck crew's responsibilities during towing, including towline management and fairlead use. Safe towing requires precise coordination between bridge and deck teams.

  • Lesson 4 • Supervising and Mentoring Deck Crew

    Develops skills for briefing, monitoring, and correcting junior crew during deck operations. Effective supervision multiplies safety outcomes across the entire deck team.

  • Lesson 5 • Night and Restricted-Visibility Deck Operations

    Adapts standard deck procedures for darkness and restricted visibility using lighting and communication. Students identify additional hazards and apply compensating controls.

Certification

Your valid completion certificate

This course is for you:

  • Aspiring deck hands: seeking structured skills before their first commercial vessel job.

  • Recreational boaters: wanting professional-grade seamanship to handle their own vessel safely.

  • Fishing crew members: needing formal mooring and line-handling knowledge for certification.

  • Career changers: transitioning into the maritime industry from unrelated land-based work.

  • Military veterans: translating shipboard experience into recognised civilian seamanship credentials.

  • Harbour and marina staff: building deck competency to advance into vessel crew roles.

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