Running rigging

Running rigging is the rope and movable tackle used to raise, shape and reduce sails. A halyard raises a sail; a sheet controls its angle; an outhaul tensions the mainsail foot. A reefing line pulls a slab-reefed sail's new tack or clew down, but an in-mast main has no fixed reef points and instead uses an outhaul plus a furling line. A furling line rotates a headsail drum or mainsail mechanism. The vang controls boom height and twist; the traveler moves the mainsheet's lower attachment sideways. Control lines pass through blocks (pulleys), deck organizers, rope clutches and winches.

Polyester double braid is durable and economical for sheets. Halyards and heavily loaded controls often use a low-stretch Dyneema core under a polyester cover. Diameter must suit not only breaking load but also hands, winch self-tailers, clutches and sheave grooves.

A parted halyard can make a sail unusable and require a mast climb. A broken reef line in rising wind prevents prompt sail reduction. Chafe can destroy a structurally strong line in hours where it crosses a sharp exit or spreader. Two-handed crews need every lead and clutch to work without leaving the cockpit unnecessarily, plus spare ways to hoist or control sails.

Service means washing salt out, end-for-ending where the working section can be moved, renewing whipping, improving chafe guards and servicing the hardware causing damage. A damaged cover can sometimes be repaired or a halyard shortened if length remains adequate; a parted or heat-damaged load-bearing core means replacement. Replace line by measured diameter, finished length, construction and end termination—not a generic “rope allowance.”

For offshore redundancy, one spare full-length halyard or a topping lift rated to hoist a sail is more useful than replacing every cosmetic line. Professional splices preserve strength and pass through hardware better than knots, but they add labor.

• Covered by a standard survey — general condition, obvious chafe, stiffness, poor terminations, operation of furlers/reefing and visible deck hardware. The surveyor rarely measures every line or identifies fiber construction.
• Not covered — core inspection under covers, exact finished lengths, clutch holding tests under sailing load and a full rigging inventory. A separate rigger is normally unnecessary unless the running-rigging defects indicate broader mast/furler problems. A detailed post-purchase inventory is a good owner task and costs nothing.

• The broker or owner — “Please list each halyard, sheet, reefing and furling line replaced, with date, diameter, material and invoice.” “Which spare line can hoist the mainsail or headsail if its primary halyard fails?” “Have any lines slipped in clutches or chafed through at mast exits?”
• The surveyor — “Operate every furler and reefing configuration, identify covers worn through to the core, check that clutches hold, and distinguish configuration-specific lines from generic recommendations.”

Pull a few feet of every line through your hands. Look for flat or glossy sections, hard spots, melted fibers, an exposed colored core, fuzzy cover at clutches and black or green growth. Bend the line sharply; powder, cracking or a cover that opens indicates degradation. Check knots and splices for movement. Hoist and lower each sail, then reef or furl it. Mark which line does what. If a supposed “reefing line” cannot be found, first determine whether the main is in-mast, in-boom or slab reefed.