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IALACOLREG
COLREG
Lights & ShapesSound Signals
General123
Conduct in any condition of visibility45678910
Vessels in sight of one another1112131415161718
Restricted visibility19
Lights and shapes202122232425262728293031
Sound and light signals323334353637
Exemptions38
Verification of compliance394041
IALAGMDSSExams

Pro simulators · Coming soon

Ten pro simulators. One pass.

Ten bridge and ship systems, built the way they work at sea.

See all simulatorsSee all simulators
  • Naval SimulatorBridge and ship handling
  • ECDISElectronic chart display
  • Radar / ARPARadar and target tracking
  • Chart RoomChartwork and coastal navigation
  • Celestial NavigationAstronomical navigation
  • Radio StationGMDSS radio
  • Met DeskMarine weather
  • Engine RoomMachinery and plant operation
  • Cargo StowageCargo, trim and stability
  • Fishing SonarFish finding
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My modules

Sailing and sail trim

Work through the units in order, or jump to any one.

M1 COLREGM2 IALAM3 GMDSSM4 NavigationM5 MeteorologyM6 Ropes and knotsM14 Sailing
Module 14 · 8 units · 6 h
0%
Coming soon. The units below show what this module will cover.
  1. 1How a sail works: apparent wind and liftLearn · 4 lessonsFreeCrew25 min
  2. Points of sailStudied in Ropes and knotsCrew15 min
  3. 2Wind and sail labSimulator · Coming soonCrew15 min
  4. 3Tacking, gybing and heaving toLearn · 4 lessonsFreeInshore skipper25 min
  5. 4Reefing and rigging checksLearn · 5 lessonsWith the Exam PassFree previewInshore skipper30 min
  6. 5Quiz: sailingPractise · Coming soonInshore skipper15 min
  7. 6Sail trim and balanceLearn · 5 lessonsWith the Exam PassFree previewCoastal skipper30 min
  8. 7Sailing checkCheck · Coming soonCoastal skipper20 min
  9. 8Downwind sails: spinnaker, gennaker and preventerLearn · 5 lessonsWith the Exam PassFree previewOffshore skipper30 min
Sailing and sail trimQuiz this module
IALACOLREG

A smooth sea never made a skilled sailor.

English proverb
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