Module 1 - Nautical Terms
Common Verbs and Actions
To make fast means to secure a line to an appropriate point. To cast off means to release a mooring line as part of departure. It does not mean releasing every line at once: the order depends on the forces acting on the boat and the planned manoeuvre.
Fenders protect the hull while alongside, but their height, spacing and position must suit the berth and likely contact area. They do not compensate for an uncontrolled approach or an unsafe line plan.
A tack changes tack with the bow passing through the wind. A gybe changes tack with the stern passing through the wind. During a gybe, the boom and mainsheet can cross the cockpit rapidly and under load, so the manoeuvre requires a brief, controlled sail handling and a clear danger area.
- Make fast — to secure a rope or line
- Cast off — to release mooring lines
- Fender — protective cushion hung over the side
- Tack — turn the bow through the wind
- Gybe — turn the stern through the wind
Optional quick check
Section 8 of 9
Which action changes tack with the stern passing through the wind?
Sources and factual review
Reviewed 20 August 2026 - Compass Revision editorial review.
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