Freeboard and statutory freeboard
- Introduction to the Grade 12 content
- Video tutorials - final Grade 12 exam papers
- 1 Navigation
- 1.1 Reduction of Sights
- The spherical triangle
- The Marcq St Hilaire method of sight reduction
- Alternative method of obtaining the sun’s azimuth
- Astro running fixes
- 1.2 Compass error by astronomical observation
- The azimuth
- The amplitude
- 1.3 Radar
- Introduction to Radar
- Use of (marine) radar
- Typical radar system
- Characteristics of a radar transmission
- Possible shortcomings
- Coastal navigation techniques
- Blind pilotage techniques
- Radar plotting
- 1.4 Electronic navigation systems
- Introduction to electronic navigation systems
- Gyro compass
- Ship’s log
- Echo sounder
- Radar
- Automatic Radar Plotting Aid (ARPA)
- Automatic Identification System (AIS)
- Global Positioning System (GPS)
- Electronic Chart Display and Information System (ECDIS)
- Radio direction finding system (Marine radio beacons)
- Radar transponder beacons
- Other electronic navigation systems
- 2 Seamanship
- 2.1 Stability of Vessels
- Concepts and definitions
- States of stability
- Trim
- Effect of the movement of cargo/ballast/personnel
- Hull stresses
- Loadlines and Zones
- Freeboard and statutory freeboard
- Zones/seasonal zones and area
- Logbook entries
- 2.2 Certificates to be carried
- 3 Meteorology
- 4 Communications
- 4.1 Global Maritime Distress and Safety System (GMDSS)
- Introduction to GMDSS
- Concept
- Marine communication areas
- Operational details
- Radio watchkeeping
- GMDSS sub-systems
- GMDSS functions
- Minimum operator requirements for vessels
- Knowledge requirements of officers
- Availability of equipment
- Non-GMDSS vessels and radio communications services
- Maritime Mobile Service Identity (MMSI) numbers
- Annexures associated with the exam videos