GMA OOW Deck study plan
GMA OOW Deck · Give each week a clear focus.
8 weeks · About 7 hours per week
Navigation
Explain the principles of terrestrial coordinate systems, including latitude, longitude, and the use of the nautical almanac, without reference notes.
Calculate compass error using amplitudes and azimuths of the sun, and convert between true, magnetic, and compass bearings for a set of given problems.
Interpret a nautical chart extract to identify symbols, abbreviations, and dangers, and plan a safe route through a constrained channel.
Describe the operation and limitations of echo sounders, speed logs, and gyrocompasses, and state the checks required before relying on their outputs.
Your checkpoint
A worked navigation problem set of 20 mixed questions (compass error, chart symbols, position fixing) with step-by-step solutions, self-marked to at least 80% accuracy.
Navigation & Marine Communications (GMDSS)
Perform a running fix and estimated position calculation using tidal stream data, and explain the assumptions behind each.
Demonstrate the use of GNSS and terrestrial position-fixing methods, and list the failure modes and cross-check procedures for each.
Outline the carriage requirements and functional operation of GMDSS equipment for Sea Area A1–A4, including VHF, MF/HF, Inmarsat, and NAVTEX.
Transmit and interpret a distress alert, urgency, and safety message using correct GMDSS priority and procedure.
Explain the purpose of the NAVTEX and EGC systems and decode a sample NAVTEX message.
Your checkpoint
A one-page quick-reference card summarizing GMDSS sea areas, equipment carriage, and distress/urgency/safety alert procedures, plus a completed passage plan for a 24-hour coastal voyage.
Maritime Law and International Conventions & Shipboard Safety and Emergency Procedures
Summarize the key obligations under SOLAS, MARPOL, and STCW relevant to an OOW, and match each to a practical shipboard action.
Explain the requirements of the ISM Code and ISPS Code as they affect daily deck operations and security drills.
Describe the actions required under the collision regulations (COLREGs) for a crossing, head-on, and overtaking situation, and apply them to given scenarios.
Outline the emergency procedures for fire, abandon ship, man overboard, and flooding, including the muster list and onboard training requirements.
Identify the contents and use of the lifeboat, liferaft, and immersion suit, and state the maintenance and drill intervals required.
Your checkpoint
A completed comparison table of SOLAS/MARPOL/STCW/COLREGs requirements versus shipboard procedures, with at least 15 entries and a short note on the source convention for each.
Ship Operation and Personnel Management & Ship Construction and Stability
Explain the chain of command, the duties of the OOW, and the principles of safe watchkeeping under STCW, including fatigue management.
Describe the procedures for safe mooring, anchoring, and pilot embarkation, and list the associated risk controls.
Calculate the effect of adding or removing weights on a ship's stability, including KG, GM, and list, using a simple stability booklet extract.
Interpret a hydrostatic table and a deadweight scale to determine draft, trim, and displacement for given loading conditions.
Explain the purpose of the load line, freeboard, and intact stability criteria, and state the relevant IMO instruments.
Your checkpoint
A stability calculation worksheet solving three loading scenarios (add weight, remove weight, shift weight) with final GM, list, and trim values, plus a one-page summary of OOW watchkeeping duties.
Cargo Handling and Stowage & Ship Construction and Stability
Plan a cargo stowage for a general cargo vessel, including segregation, lashing, and weight distribution, and justify each decision.
Explain the hazards and precautions for carrying dangerous goods under the IMDG Code, and interpret a dangerous goods declaration.
Calculate the effect of a partially filled tank (free surface effect) on initial stability and describe how to minimize it.
Describe the procedures for loading and discharging bulk cargoes, including the risks of liquefaction and cargo shift.
Outline the requirements for cargo securing manuals and the inspection of lashings before departure.
Your checkpoint
A cargo stowage plan for a mixed general cargo consignment, including a dangerous goods segregation check and a free surface effect calculation, with a written justification of the plan.
Meteorology & Marine Engineering (Deck Officer Level)
Interpret synoptic charts, identify pressure systems and fronts, and forecast local weather changes for a given area.
Explain the formation of tropical revolving storms, the associated warning signs, and the recommended avoidance manoeuvres.
Describe the use of weather routing information and the limitations of shipboard forecasting tools.
Explain the operation of the main engine, steering gear, and auxiliary systems at a level sufficient to communicate with the engine room and detect developing faults.
List the checks and procedures for testing steering gear before departure and during passage, including the emergency steering drill.
Your checkpoint
A weather route plan for a 5-day passage using a provided synoptic chart sequence, with a written explanation of the chosen route and the engineering checks to be completed before departure.
Shipboard Safety and Emergency Procedures & Maritime Law and International Conventions
Conduct a simulated fire drill and an abandon ship drill, and document the debrief points and corrective actions.
Explain the procedures for responding to pollution incidents under MARPOL and the ship's SOPEP, and list the required notifications.
Describe the investigation and reporting requirements for marine casualties and incidents under IMO and flag State rules.
Outline the survey and certification regime for a merchant ship, including the role of classification societies and port State control.
Explain the OOW's responsibilities during an emergency, including communication with the master, crew, and external authorities.
Your checkpoint
A completed drill record and debrief report for a simulated fire and abandon ship drill, including a timeline of actions, a list of deficiencies identified, and the corrective actions assigned.
Navigation & Maritime Law and International Conventions & Marine Communications (GMDSS)
Complete a full-length timed mock examination covering all domains, and score each section separately.
Review every incorrect answer from the mock, classify the error type (knowledge gap, misreading, calculation), and write a corrective note for each.
Re-test the three weakest domains using a second set of mixed questions, and compare scores against the first attempt.
Summarize the top ten regulatory and navigation facts most likely to be tested, and recite them from memory.
Prepare a personal exam-day checklist covering documentation, equipment, and time management.
Your checkpoint
A mock exam score report with section-by-section results, a categorized error log, and a one-page personal revision sheet of the ten key facts, achieving at least 75% overall on the second attempt.
Milestones
Week 2: Score at least 75% on a self-marked 15-question navigation and GMDSS quiz, and produce a passage plan that a master could review without major correction.
Week 4: Complete the stability worksheet with all three scenarios correct within 5% of the reference values, and explain each step aloud without notes.
Week 6: Correctly interpret a three-day synoptic chart sequence and pass a 10-question meteorology and engineering quiz at 70% or above.
Week 8: Achieve at least 75% overall on the full-length mock exam, with no single domain below 60%, and submit the completed error log and revision sheet.