Welcome to Grade 10 Nautical Science. This is where you begin learning the fundamentals of seamanship, navigation, and maritime communications. From understanding ship parts and safety equipment through to reading charts and using a compass — these lessons lay the groundwork for everything that follows.
Grade 10 - Nautical Science
The fundamentals of seamanship begin here.
Introduction▼
10.0 All the Grade 10 Nautical Science videos▼
1 Navigation▼
1.1 Navigation
Introduction to navigationThe navigatorNavigation equipmentNavigation instruments, publications and stationery1.2 Navigation definitions and concepts
Navigation definitions and conceptsNavigational chartsPassage planning1.3 Measurement of position and distance on the earth’s surface
Measurement of position and distance on the earth's surface1.4 Measurement of direction
Measurement of direction - three figure notationCardinal and intercardinal pointsRelative bearingsCompassesVariation, magnetic bearings and deviationCompass bearings1.5 Chartwork – plotting and chart symbols
Chartwork - plotting and plotting symbolsThe fixThe observed position and dead reckoning position (DR)Ship's track and estimated position (EP)Taking bearings and visual bearings of terrestrial objectsCocked hatRadio direction finding (DF) bearingsFixing by position circlesDistance by vertical sextant angleHorizontal sextant angle (HSA)TransitsPosition by GPS (Global Positioning System)Leading lights and markersRising and dipping distances of a light and ranges of lightsDanger anglesPractical example of a position determined by horizontal sextant angle and vertical sextant angle1.6 Measurement of time at sea
Measurement of time at seaZone time at seaStandard time on land and Universal Time/Greenwich Mean TimeZone designations and local mean timeNautical almanac and conversion of time2 Seamanship▼
2.1 Basic seamanship
Seamanship and the need for basic seamanship skillsLayout of a typical ship and nautical termsMiscellaneous ship termsNautical terms for shore facilities/construction2.2 Ship’s construction
Ship's construction - materialsHull construction2.3. Ship’s organization
Ship's organisation - command and controlDeck departmentWatchkeeping2.4. Ropes and their usage
Ropes and their usage: Construction of ropesTypes of rope: natural ropesTypes of rope: man-made (synthetic) ropesHandling and care of ropesHandling mooring lines2.5 Basic knots, bends, hitches and splices
Basic knots, bends, hitches and spices: WhippingsKnots, bends and hitchesMaking a line fast to a set of bitsSplicingRigging2.6 Safety
Safety - WatchkeepingSteeringEmergency drills - man overboardEmergency drills - shipboard firesShip disasters2.7 Sea transport operations
Sea transport operationsPassenger shipsGeneral cargo (break-bulk) shipsContainer shipsRo-Ro vesselsDry bulk carriersOil tankers and FPSO vesselsLiquid gas carriersReefers (refrigeration vessels)Heavy lift vesselsCommercial fishing vesselsTugsDredgers3 Meteorology (weather at sea)▼
4 Communications▼
4.1 Introduction
Communications - introduction4.2 Flags
Flags4.3 Semaphore and flashing light
Semaphore and flashing light4.4 Pyrotechnics, amplified voice, ship’s siren and underwater telephone
Pyrotechnics, amplified voice, ship's siren and underwater telephone4.5 Radio
Radio communications4.6 Vessel identities, commonly used words or phrases, phonetic alphabet and time.
Vessel identities, time, words & phrases and phonetic alphabet90 lessons