Roach

The curved extension of a sail's area aft of a straight line drawn from head to clew.

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Related R-terms

Rigging

The wires (standing rigging) and lines (running rigging) supporting and controlling the sp…

Range

The line of sight formed when two marks ashore line up, showing the centre of a channel or…

Rake

The fore-and-aft tilt of the mast relative to vertical.

Rhumb line

A course line crossing all meridians at the same angle — a straight line on a Mercator cha…

Rode

The whole line-and-chain assembly linking the anchor to the boat.

Roller-furling

A mechanical system allowing the headsail (or mainsail) to be rolled away around the stay …

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