What you need to perform it
Primary qualification
- RYA Yachtmaster Ocean Certificate of Competence: requires holding the Yachtmaster Offshore and passing an oral exam (plus a written celestial navigation paper, waived with the Ocean theory certificate) on a qualifying ocean passage completed as skipper or watch leader.
- During the passage, real celestial observations (sun and other bodies) must be taken, reduced and presented to the examiner.
- For professional use: RYA/MCA Commercial Endorsement (valid ENG1 medical, Sea Survival, First Aid and PPR — verify current package), renewed five-yearly.
Basic STCW
- For the commercial endorsement: survival (RYA Basic Sea Survival or STCW A-VI/1-1) and first aid; the large-yacht route requires the full STCW A-VI/1 package.
Specific courses
- Yachtmaster Ocean Shorebased (theory): celestial navigation and ocean meteorology — waives the written exam.
- Long-range GMDSS (Long Range Certificate or GOC): essential beyond VHF range.
- Valid first aid and remote medical advice (TMAS) procedures for long passages (as a guide).
- Ocean survival and liferaft (ISAF/World Sailing Offshore Safety or equivalent — as a guide).
- PPR and Sea Survival for the commercial endorsement.
Indicative experience
Qualifying ocean passage (RYA): at least 600 miles non-stop by the shortest navigable route, with at least 96 continuous hours at sea and 200 miles more than 50 miles offshore, being fully involved in planning and watchkeeping (verify current RYA conditions).
Observations
Dataset ladder: Yachtmaster Offshore → Ocean → Master < 200 GT unlimited → MCA large-yacht route (OOW/Chief Mate/Master Yachts). The exam assesses ocean-skipper judgement, not just calculation: boat preparation, routing decisions and fatigue management. Celestial navigation remains mandatory because it is the only GNSS-independent backup on the ocean. It does not automatically convert into Spanish qualifications (PER/PPER or Capitán de Yate) — verify with the DGMM by flag.
What this role does
It crowns the RYA ladder: it certifies real command on the ocean, far from any help, with celestial navigation as the backup to GNSS. Unlike the Offshore, there is no on-board practical exam: a real qualifying ocean passage is validated and defended before an examiner. With the commercial endorsement it removes the 150-mile limit of the Master < 200 GT and is the usual prerequisite of the MCA large-yacht routes (Chief Mate and Master Yachts 500/3,000 GT — verify current MSN).
Typical watches
- Command on ocean passages with the yacht's own watch system; weeks at sea at a stretch
Key responsibilities
- Command the yacht on ocean passages with unlimited navigation (area category 0).
- Plan the ocean route: great-circle routes, large-scale meteorology, currents and seasonal strategy.
- Navigate by celestial means: sun, moon and star sights as a verifiable backup to GNSS.
- Prepare the yacht for the ocean: spares, water and fuel, jury rig, abandon-ship plan and long-range communications.
- Manage the crew on long passages: watches, rest, morale and emergencies with no outside help nearby.
Operational scope
- Area category 0 — unlimited navigation
- MCA-coded vessels up to 24 m; accepted for command of yachts up to 200 GT unlimited (verify current MSN)
- Ocean passages, transatlantic deliveries and rallies
Profile reviewed by HydroAbyss (2026). Cited rules and timeframes are indicative: the final requirement is set by the flag State, the Administration and each company.