Lesson routeWhat Ocean Level Adds0/4 read
Lesson 1 of 4
What Ocean Level Adds
Yachtmaster Ocean is about taking responsibility for extended ocean passages, not simply memorising a sight-reduction form. The skipper must connect astro navigation, passage planning, worldwide meteorology, crew management, vessel preparation, maintenance, and emergency decision-making.
The practical evidence matters. Candidates need to explain how they planned and executed an ocean qualifying passage, and how they navigated without relying on electronic navigation aids for the required astro work.
- Ocean work combines navigation, weather, boat preparation, and leadership.
- The qualifying passage story must be clear and defensible.
- Sight records need times, DR/EP, reductions, plots, and conclusions.
- The oral exam tests judgement, not only arithmetic.
| Area | Evidence expected | Weak answer |
|---|---|---|
| Passage planning | Route, season, weather, stores, watch system, equipment | We just sailed across |
| Astro navigation | Sun-run-meridian or sun-run-sun, compass check, plotted records | I saw the sun and used GPS later |
| Meteorology | Ocean-scale wind, pressure, forecasts, and tropical risk | Weather was fine |
| Leadership | Crew, maintenance, emergencies, fatigue, and decisions | The crew managed itself |
Lesson 2 of 4
Qualifying Passage Evidence
A credible qualifying passage narrative explains why the route was chosen, what alternatives were considered, what weather windows mattered, how the yacht was prepared, how watches worked, and what changed underway.
Log extracts should support the story. Position, course, speed, weather, barometer, sail plan, engine use, maintenance, sights, and decisions all help show responsible participation as skipper or watch leader.
- Keep original log pages and sight worksheets.
- Explain the rationale behind route and timing.
- Show how weather and crew condition changed decisions.
- Be ready to discuss mistakes and corrections honestly.
Lesson 3 of 4
Oral and Written Readiness
The oral discussion is likely to move quickly between your passage, astro records, ocean weather, crew management, yacht preparation, and emergency scenarios. Revision should therefore be scenario-based.
The written sight-reduction work needs a clean process: correct time, correct almanac data, careful corrections, sensible assumed position, accurate plotting, and a final answer that is checked against DR and common sense.
- Practice explaining each worksheet step aloud.
- Know why each correction is applied.
- Check final positions against DR and log data.
- Prepare examples from the real passage, not invented theory only.
Lesson 4 of 4
Current RYA Exam and Passage Thresholds
The current RYA Yachtmaster Ocean exam page requires an eligible ocean qualifying passage accrued within ten years of the examination: at least 600 nautical miles, including at least 200 nautical miles more than 50 miles from land or charted objects usable for navigation, and at least 96 hours in duration. The candidate must have taken a full part in passage planning and preparation and acted throughout in a responsible capacity as skipper or in sole charge of a watch. Vessel size, tonnage and underlying certificate rules also apply, so the current application material controls an actual booking.
The minimum astro evidence is the planning, reduction and plotting of a sun-run-meridian-altitude or sun-run-sun sight, plus a compass check using the bearing of the sun, moon, a star or a planet. The current exam combines oral and written work; qualifying-passage narrative and log extracts, navigational records, sight work and the stated pre-exam submission requirements must be checked directly with the RYA. Completing Compass lessons supplies none of that passage evidence and does not create exam eligibility.
- Qualifying passage: 600M, including 200M more than 50 miles from usable land or charted objects.
- Duration: at least 96 hours and accrued within ten years of the exam.
- Role: full planning and preparation, then responsible capacity as skipper or in sole charge of a watch.
- Astro minimum: a qualifying sun-run sight plus a celestial-body compass check.