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Module 3 · NAVIGATION

Position Fixing

Where are we? Dead reckoning, estimated positions and visual fixes: the deduction skills that keep working when the electronics don't.

5 lessons · about 2.3 hours

Lessons

  1. Dead ReckoningProjecting your position from course steered, speed and time.25m
  2. The Estimated PositionImproving DR with tidal stream and leeway to produce an EP.30m
  3. Position Lines and Visual FixesCompass bearings, the three-point fix and the cocked hat.30m
  4. Transits, Clearing Bearings and SoundingsPosition lines without instruments: transits, clearing lines and the echo sounder.25m
  5. Fixing in PracticeChoosing methods, fixing frequency, logging and cross-checking GNSS.25m