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Independent revision aid only. It does not issue an RYA Yachtmaster Ocean shorebased certificate and does not replace invigilated exams, qualifying passages, or oral assessment.
Compass Revision course
Yachtmaster Ocean revision
Premium revision for Yachtmaster Ocean theory, astro navigation, sextant use, sun sights, worldwide meteorology, tropical revolving storms, and ocean passage planning.
Independent revision aid only. It does not issue an RYA Yachtmaster Ocean shorebased certificate and does not replace invigilated exams, qualifying passages, or oral assessment.
Syllabus map
What this course covers
Ocean Theory Pathway
FreeWhere Ocean theory sits after Coastal/Yachtmaster Offshore and what the official assessment expects.
Preview module
Celestial Sphere and Time
FreeCelestial coordinates, apparent movement, UTC, zone time, chronometer error, and sight timing.
Preview module
Sextant Use and Corrections
Taking an altitude, index error, dip, refraction, semi-diameter, and observation discipline.
Preview module
Sun Sights and Position Lines
Intercept method principles, assumed position, azimuth, plotting a position line, and transferred lines.
Preview module
Meridian Altitude and Latitude
Noon sights, meridian passage, declination, observed altitude, and latitude by sun.
Preview module
Compass Checks by Celestial Body
Using sun, moon, star, or planet bearings to check compass error.
Preview module
Ocean Passage Planning
Route choice, watch systems, crew management, stores, water, spares, communications, and emergency planning.
Preview module
Worldwide Meteorology
Global circulation, trade winds, ITCZ, pressure systems, routing weather, and ocean forecasts.
Preview module
Tropical Revolving Storms
Formation areas, seasons, dangerous semicircle concepts, avoidance, and practical routing caution.
Preview module
Emergency and Electronic Backup Navigation
Navigation without electronics, log records, dead reckoning, astro fallback, and equipment failure planning.
Preview module