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Powerboat ICC revision module 5 of 9

SPD

Planing Speed and Wash

Planing awareness, trim, lookout, wash, local limits, and passenger safety.

planing speedtrim

3 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision
  • Explain planing awareness, trim, lookout, wash, local limits, and passenger safety.
  • Apply planing speed to a realistic onboard situation.
  • Recall the core check: look further ahead as speed increases.

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.

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Lesson 1 of 1

Planing-Speed Awareness

Planing speed changes everything: reaction time shrinks, stopping distance grows, turns load the crew, and wash can harm others. The driver must look much further ahead than at displacement speed.

Acceleration should be deliberate. Warn crew, check behind and ahead, trim appropriately, keep a proper lookout, and reduce speed early near traffic, swimmers, moorings, banks, wildlife, or speed limits.

  • Look further ahead as speed increases.
  • Warn crew before acceleration or sharp turns.
  • Use trim to keep safe visibility and control.
  • Slow down before the hazard, not inside it.
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