Understand How Ships Float, Balance & Navigate Safely.

An open-access maritime engineering reference covering ship stability, hull construction and the safety and pollution-prevention conventions that govern every voyage.

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Ship Construction & Naval Architecture

Ship Construction & Naval Architecture

Fundamental principles of ship design, equilibrium, static and dynamic stability, stresses, and structural integrity.

26 Topics • View Module →
All topics Fundamental principles of ship design, equilibrium, static and dynamic stability, stresses, and structural integrity. 26 Topics
SOLAS & MARPOL

Safety

Maritime safety and pollution-prevention conventions — SOLAS, STCW and MARPOL — covering certificates, records, emergency procedures and Port State Control readiness.

5 Sub-topics • View Module →
MARPOL Pollution-prevention rules seafarers must know cold: MARPOL Annexes I–VI — oil, chemicals, packaged goods, sewage, garbage and air emissions — with discharge criteria, record books and PSC checks. 8 Topics SOLAS Safety-of-life-at-sea rules in exam order: SOLAS chapters on construction, life-saving, fire protection, navigation and cargoes, plus the ISM and ISPS codes, certificates and surveys. 13 Topics General Day-to-day seamanship and paperwork: ship certificates, load line and tonnage, dry-docking, bunkering, audits vs surveys, and emergency equipment checks. 22 Topics Life Saving Appliances Every life-saving appliance and how surveyors test you on it: personal LSA, distress signals, liferafts, lifeboats and launching — with SOLAS rules and maintenance intervals. 5 Topics Fire Safety The complete shipboard fire-fighting syllabus: fire classes and extinguishers, detectors, CO2, sprinklers, fire main, foam, inert gas, fire plans and muster lists. 7 Topics
AJ Notes - Motor

Marine Propulsion & Diesel Engines

MEO Class 4 Motor — theoretical cycles, two-stroke and four-stroke construction, fuel injection, turbocharging, indicator diagrams, engine operation and troubleshooting.

11 Sub-topics • View Module →
Engine Basics & Cycles Engine fundamentals first: Otto, Diesel and dual cycles, engine terminology, and two-stroke vs four-stroke differences — the base every Motor answer builds on. 4 Topics Two-Stroke Construction Inside the big two-stroke: engine structure, crankshaft types, main/guide/thrust bearings, chain drive and charge-air coolers — with inspection and failure points. 5 Topics Four-Stroke Engines Auxiliary four-stroke engines: layout, cylinder-head valves, fuel injection, trunk-piston lubrication and the checks that keep them running. 1 Topic Gas Turbines Rotating power without pistons: gas-turbine working, performance, steam-vs-gas comparison and the auxiliaries that support them. 1 Topic Steam Boilers Raising steam safely: boiler types, mountings, safety valves, gauges, combustion and draft — with the figures examiners expect. 3 Topics Performance & Indication Proving the engine makes its power: indicator cards, mean effective pressure, efficiencies and the running adjustments that fix them. 1 Topic Engine Operation Starting, reversing, manoeuvring and stopping: two-stroke and four-stroke operation with the alarms and interlocks that guard each step. 4 Topics Lubrication & Fuel Systems Oil and fuel readiness: lube-oil system and purification plus fuel preparation and changeover — the systems behind every reliable running hour. 1 Topic Safety & Troubles When engines misbehave: protections, performance curves, starting and running faults, and the emergencies — with causes and actions. 4 Topics Governor & Scavenging Speed control and breathing: governors, pulse vs constant-pressure turbocharging, surging and the washing routines that restore air flow. 3 Topics Motor Oral Questions Examiner-style Motor questions with model answers across engines, boilers and systems — final revision before the oral. 2 Topics
AJ Notes - MEP

Auxiliary Machinery & Shipboard Systems

MEO Class 4 MEP — shaft seals, heat exchangers, air compressors, pumps, steering gear, refrigeration, purifiers, pipelines, valves, FWG, engine maintenance and watchkeeping.

15 Sub-topics • View Module →
Shaft Seals & Packing Keeping oil in and seawater out: oil control rings, wiper rings, gland packing, mechanical seals and labyrinth seals — with overhaul clearances. 1 Topic Heat Exchangers Shell-and-tube vs plate coolers: construction, cleaning, back-flushing and leak detection — plus what to do when temperatures creep up. 2 Topics Air Compressors & Receivers Starting-air supply end to end: reciprocating compressor overhaul, bumping clearance, safety devices and air-receiver rules. 2 Topics Pumps Every pump you will overhaul at sea: centrifugal, reciprocating, gear and screw pumps — dismantling, backlash, NPSH and cavitation cures. 3 Topics Steering Gear The gear that must never fail: steering-gear operation, oil charging and air purging — with the SOLAS tests surveyors always ask for. 1 Topic Refrigeration & AC Reefer plant from compressor to cold room: oil management, TEV operation, defrosting, servicing and the faults that warm up cargo. 2 Topics Purifiers & Centrifuges Clean oil, happy engine: purifier bowl parts, purifier vs clarifier, starting and stopping sequence, and the separation faults that dirty the oil. 3 Topics Pipelines & Valves The ship’s plumbing: bilge, ballast and bunkering lines, water hammer, globe/gate/butterfly valves and sea-chest care — failures included. 3 Topics OWS & STP 2 Topics Workshop & Practicals 1 Topic FWG & Hydrophore Fresh water at sea and pressure at the taps: fresh-water generator operation and hydrophore pressure-water systems with their faults. 2 Topics Main Engine Maintenance Open-up inspections that pass orals: scavenge and crankcase checks, crankshaft deflection, piston-liner-rings, plus crankcase explosions and scavenge fires. 4 Topics Aux Engine & Boilers Auxiliary engines and steam plant: valve timing, liner calibration, bearings, fuel pumps — plus water-tube vs fire-tube boilers and mountings. 2 Topics Watchkeeping Running the engine room like a professional: watchkeeping duties in port and at sea, work organisation and the safety rounds that prevent detentions. 1 Topic Viva Voce Examiner-style questions with model answers across machinery, engines and lube oil — revise here before the oral. 2 Topics
Samundra Electrical

Marine Electrical Systems

Function 5 quick-reference — switchboards and protection, motors and starters, transformers and electronics, alternators and parallel running, batteries, instruments and safety systems.

8 Sub-topics • View Module →
Fundamentals & Laws Electrical fundamentals: AC vs DC, active and reactive power, electricity flow, and Ohm, Faraday and Kirchhoff laws. 2 Topics Switchboards & Protection Main switchboard safeties, preferential and reverse-power trips, breaker types and trip units, bus transfer and MSB maintenance. 2 Topics Motors & Starters Induction motors, single phasing, megger testing, DOL/star-delta/auto-transformer/soft starters, motor safeties and temperature class. 3 Topics Transformers & Electronics Transformer types and kVA rating, diodes including Zener, thyristors/SCRs, and the oxygen sensor. 1 Topic Alternators & Parallel Running Brushless and self-excited alternators, construction and maintenance, paralleling with synchroscope, AVR and reverse-power protection. 2 Topics Batteries & Supplies Lead-acid batteries, capacity and rating, charging and trickle circuits, and shipboard 440/220 V distribution with lighting. 1 Topic Instruments & Safety Systems Megger IR testing, thermocouples, earth-fault tracing, detectors, intrinsic safety, neutral systems, ICCP and emergency generation. 1 Topic Electrical Oral Questions Examiner-style electrical questions with model answers across the full Function 5 syllabus — final revision before the oral. 1 Topic