Fire extinguisher

A portable pressure-charged bottle used to fight fire on board; yachts typically carry Class A, B, and E/C types to cover solids, liquids, and electrical fires respectively.

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Related F-terms

Fetch

The distance of open water, to windward, over which the wind has blown — the longer the fe…

Fend off

To push the vessel clear of an obstacle by hand, foot, or boat hook.

Freeboard

The vertical distance from the waterline to the deck edge.

Foul weather gear

Waterproof clothing — jacket, trousers (salopettes), sea boots — for sailing in wet or hea…

Furling line

The continuous control line led back to the cockpit that drives a headsail, code zero, or …

Fractional rig

A rig in which the forestay meets the mast below the masthead (e.g. 7/8 or 9/10 of mast he…

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