Junior Engineer / 4th Engineer (Entry Level)
Where: Large yachts (typically 50–60m+)
Role: Assisting senior engineers, standing watches, routine maintenance of onboard systems.
Minimum required documents:Basic STCW:- Personal Survival Techniques
- Fire Prevention & Firefighting
- Elementary First Aid
- Personal Safety & Social Responsibilities
- ENG1 (seafarer medical certificate)
- Sometimes: AEC 1 (Approved Engine Course)
- ENG1 or equivalent
It is possible to get a job without time at sea, but further growth will require at least 6-12 months.
2️⃣
3rd Engineer / Assistant EngineerRole: Independent work on technical systems — generators, HVAC, watermakers, fuel systems.
Usually required:- STCW Basic
- AEC 1 + AEC 2
- Engine Room Watch Rating (or equivalent)
- Accumulated sea time
Exams AEC 2 Oral Exam Internal Flag Exam (if required)
3️⃣
2nd Engineer Role: Deputy to the Chief Engineer. Oversees maintenance and may act as the sole engineer on 30–40m yachts.
Certificates required:- Officer of the Watch (Engine) (OOW)
- Advanced Firefighting
- Proficiency in Survival Craft (PSC)
- STCW Medical Care
- Sea time (typically 12+ months)
Courses- Engine Resource Management (ERM)
- High Voltage Operations
- Stability & Damage Control
- ISM Code basics
- MARPOL regulations
- Fuel management & pollution prevention
ExamExams OOW written and oral exams Oral exam at the administration office (e.g., UK Oral)
4️⃣
Chief Engineer (Yacht)Chief Engineer of the vessel. Responsible for:
- Main engines
- Generators
- Fuel systems
- Electrical systems
- Compliance with class and flag state requirements
CoC Levels (Yacht Engineering Route) Y3 — Chief Engineer <3000 kW What it allowsYou can serve as Chief Engineer on commercial yachts with propulsion power up to 3000 kW.
Entry RequirementsOfficer of the Watch (OOW) (Engine) CoC
- Minimum 12 months sea time after obtaining OOW
- Advanced Firefighting
- Proficiency in Survival Craft (PSC)
- Valid ENG1 medical
- Approved Training Record Book (completed)
Sea time must be properly documented with sea service testimonials.
Required Knowledge- AreasMarine diesel engines (medium/high speed)
- Generator operation & load sharing
- Fuel systems & purification
- Electrical distribution systems (LV)
- Refrigeration & HVAC
- Planned Maintenance Systems (PMS)
- MARPOL & pollution prevention
- ISM Code basics
- SOLAS basics
- Emergency procedures
Examination- MCA Oral Examination (engineering knowledge & practical scenarios)
- Document review (sea time verification, course certificates)
No written exams at this stage if progressing from OOW.
Y2 — Chief Engineer <6000 kW What it allowsChief Engineer on yachts up to 6000 kW (typically larger 50m+ superyachts).
Entry RequirementsChief Engineer <3000 kW (Y3) CoC
- Additional 12 months sea time as Chief or Senior Engineer
- Advanced Firefighting (valid)
- Updated ENG1
Management-Level Modules (STCW)Leadership & Management (Operational/Management Level)
- Engine Resource Management (ERM)
- High Voltage Operations
- Stability & Damage Control
- Marine legislation (SOLAS, MARPOL, ISM)
Knowledge AreasAdvanced electrical fault finding
- Power management systems
- Dry dock planning
- Class & Flag compliance
- Budget control & spare parts management
- Risk assessment
ExaminationMCA Oral Exam (management-level focus)
- Management-level written assessment (if required)
- Full document audit
The oral exam becomes more scenario-based and command-focused.
Y1 — Chief Engineer (Unlimited Power) What it allowsChief Engineer on yachts of unlimited propulsion power (large superyachts & megayachts 60m+).
Entry RequirementsChief Engineer <6000 kW (Y2)
- Significant additional sea time (often 36+ months total engineering sea time)
- Sea time as Chief Engineer required
- Valid Advanced Firefighting
- Valid ENG1
Required Courses (Management Level STCW)Advanced Stability
- Leadership & Management (Management Level)
- Advanced High Voltage
- Advanced Marine Engineering Systems
- Shipboard Safety Management
- Environmental Management (MARPOL advanced)
Advanced Knowledge- AreasThermodynamics & power plant efficiency
- Load sharing & blackout recovery
- Advanced automation & control systems
- Survey preparation (Class inspections)
- Budget planning & refit management
- Flag State & Class regulations
- Accident investigation procedures
Examinations- MCA Written Exams (if required under pathway)
- MCA Oral Examination (very technical and command-level)
- Full documentation audit
- Verification of sea service
- The oral exam at Y1 level is comprehensive and scenario-driven, focusing on leadership, crisis management, and deep technical competence.