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Module 1
Not startedOcean Theory Pathway
Where Ocean theory sits after Coastal/Yachtmaster Offshore and what the official assessment expects.
4 topics - lesson, quiz, and recall checks
Ocean pathwayqualifying passageoral exam
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Back to Yachtmaster Ocean
Course modules
Yachtmaster Ocean modules
Start with the free revision module, then unlock all practice and revision features.
Getting started
Yachtmaster Ocean learning route
Work through the revision path in order, then use each module's Practise and Test steps and flashcard pass to turn reading into recall.
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2 modules are open now. Use the optional diagnostic beside this introduction to choose where to begin.
10 modules
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Module 2
Not startedCelestial Sphere and Time
Celestial coordinates, apparent movement, UTC, zone time, chronometer error, and sight timing.
4 topics - lesson, quiz, and recall checks
celestial sphereUTCchronometer error
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Module 3
Premium lockedSextant Use and Corrections
Taking an altitude, index error, dip, refraction, semi-diameter, and observation discipline.
5 topics - lesson, quiz, and recall checks
sextantaltitudeindex error
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Module 4
Premium lockedSun Sights and Position Lines
Intercept method principles, assumed position, azimuth, plotting a position line, and transferred lines.
4 topics - lesson, quiz, and recall checks
sun sightinterceptazimuth
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Module 5
Premium lockedMeridian Altitude and Latitude
Noon sights, meridian passage, declination, observed altitude, and latitude by sun.
4 topics - lesson, quiz, and recall checks
meridian altitudenoon sightdeclination
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Module 6
Premium lockedCompass Checks by Celestial Body
Using sun, moon, star, or planet bearings to check compass error.
4 topics - lesson, quiz, and recall checks
compass checkazimuthsun bearing
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Module 7
Premium lockedOcean Passage Planning
Route choice, watch systems, crew management, stores, water, spares, communications, and emergency planning.
4 topics - lesson, quiz, and recall checks
ocean routewatch systemsstores
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Module 8
Premium lockedWorldwide Meteorology
Global circulation, trade winds, ITCZ, pressure systems, routing weather, and ocean forecasts.
4 topics - lesson, quiz, and recall checks
worldwide meteorologytrade windsITCZ
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Module 9
Premium lockedTropical Revolving Storms
Formation areas, seasons, dangerous semicircle concepts, avoidance, and practical routing caution.
4 topics - lesson, quiz, and recall checks
tropical revolving stormscyclone seasonsdangerous semicircle
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Module 10
Premium lockedEmergency and Electronic Backup Navigation
Navigation without electronics, log records, dead reckoning, astro fallback, and equipment failure planning.
4 topics - lesson, quiz, and recall checks
emergency navigationdead reckoninglog keeping
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Audio revision is available. Listen to 10 short recaps alongside the modules.