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Radar revision module 7 of 9

PIL

Radar Navigation and Pilotage

Parallel indexing, clearing ranges, contour awareness, and pilotage in poor visibility.

parallel indexingclearing ranges

4 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision
  • Explain parallel indexing, clearing ranges, contour awareness, and pilotage in poor visibility.
  • Apply parallel indexing to a realistic onboard situation.
  • Recall the core check: use radar to confirm, not invent, the pilotage picture.

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Lesson routeRadar as a Pilotage Aid0/1 read

Lesson 1 of 1

Radar as a Pilotage Aid

Radar can support pilotage by showing land echoes, harbour arms, buoys, ships, rain, and ranges to hazards when visual references are weak. It is especially useful at night or in poor visibility.

It should sit inside a pilotage plan, not replace one. The skipper still needs a route, clearing ranges, visual or sound cues where available, speed control, and an abort option.

  • Use radar to confirm, not invent, the pilotage picture.
  • Compare land echoes with the chart before relying on them.
  • Use clearing ranges and parallel indexing to create margins.
  • Slow down enough to interpret the display.
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