centreboard

• Quille mobile ou dérivation rétractable utilisée sur les voiliers pour réduire la dérive latérale sous l'effet du vent.

A retractable fin keel used on sailboats to prevent drifting to leeward.

1. Retractable keel on a sailboatC1formal

   A movable fin or board that can be lowered through the hull of a sailboat to reduce sideways drift (leeway) when sailing upwind.

   Dérive (de bateau)

   • The sailor lowered the centreboard to prevent the boat from sliding sideways.
   • Small dinghies often use a centreboard instead of a fixed keel.
   • He retracted the centreboard before beaching the sailboat.

   Synonymescenterboarddaggerboard