IALA A Buoyage revision module 3 of 5

CARD

Cardinal Marks and Flash Rhythms

North, east, south, and west cardinal marks with colour bands, topmarks, safe side, and quick-flash rhythm memory.

north cardinaleast cardinal

8 guided lessons · 10 practice questions · 10 flashcards

3 outcomes · self-guided revision
  • State the named compass side on which safer water lies relative to a cardinal mark's point of interest, then identify what the current chart and vessel plan must still establish.
  • Relate the named north, east, south and west cardinal quadrants to true bearings from a point of interest without turning quadrant geometry into an uncharted steering sector.
  • Identify all four cardinal marks by combining double-cone orientation and black-and-yellow band order, including the limits of body shape and topmark availability.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.

More ways to revise

Practise, topic tests, flashcards and interactive trainers are included with full revision access (£2.99 one-time).