What you need to perform it
Primary qualification
- Spain: deck cadet within the Degree in Nautical Science and Maritime Transport (or an approved equivalent), holding a seaman’s book, a valid ISM medical and clearance as a trainee; the titles framework is RD 973/2009.
- Goal of the period: meeting STCW Regulation II/1 — 12 months of approved-programme sea service with a TRB, of which at least 6 on supervised bridge watchkeeping duties (or 36 months without an approved programme).
- Natural outcome: the Spanish Second Mate title (RD 973/2009) and the STCW II/1 CoC as Officer in Charge of a Navigational Watch, after passing the DGMM examinations.
Basic STCW
- Basic Safety Training (A-VI/1) before the first embarkation.
- Officer-package certificates completed during the stage: Advanced Fire Fighting (A-VI/3), Survival Craft and Rescue Boats (A-VI/2-1) and Medical training.
Specific courses
- Radar/ARPA and ECDIS (IMO model course 1.27) per the study plan, essential for the future watch.
- GMDSS General Operator Certificate (GOC, STCW Regulation IV/2), mandatory to serve as watch officer.
- Completion of the Administration-approved TRB: the document that turns sea time into months valid for the licence.
Indicative experience
As a guide: cadets embark with no prior experience (the requirements are academic and medical) and the period lasts 12 months in an approved programme — usually split into 2-3 embarkations with different companies or ships. Minimum age for the II/1 CoC: 18. The quality of the TRB and the masters’ reports later weigh on the first hire as Third Officer.
Observations
Route: Deck Cadet → Third Officer (see profile, II/1 CoC) → Second Officer → Chief Officer → Master (see profiles). Professional judgement: the cadet who exploits the watches — asking, plotting, taking the helm — arrives at the exam with half the licence done; the one who stays a spectator logs months but builds no seaman’s judgement. Rotating ship types if possible pays off (tanker, container or passenger experience opens different doors), and keep stamped copies of every sea-service period: service certificates are the currency of the career.
What this role does
The cadetship is the sea phase of the deck career: without this documented sea service there is no licence, however good the academic record. The cadet learns navigation, shiphandling and shipboard life under direct supervision, and the central tool is the Training Record Book (TRB): an approved programme of tasks signed off by the officers and required by the Administration to sit for the licence. Cadets do not count towards the safe manning document, which lets them focus on learning — and obliges the company to carry them as an extra berth.
Typical watches
- Bridge watches alongside the officer of the watch per the training plan; periods of day work on deck
Key responsibilities
- Keep bridge watch under supervision: lookout, helm, position plotting, navigation aids and applying the COLREGs in real situations.
- Take part in mooring, anchoring, berthing and cargo operations, rotating through the deck stations.
- Complete the Training Record Book (TRB) task by task, signed off by the supervising officer and periodically reviewed by the master.
- Attend drills and take on growing muster-list duties as the sea time advances.
- Study the ship’s systems (ECDIS, radar, GMDSS, stability, plans) preparing for the licence examination and the company appraisals.
Operational scope
- The bridge during training watches
- The deck during manoeuvres and cargo operations
- Drills and muster-list exercises
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.