Masts, booms and rigging
World Sailing · 2025–2028The rig includes spars, spreaders, rigging, fittings and relevant corrector weights. Standing rigging mainly supports spars; running rigging mainly adjusts spars, sails or appendages. A mast measurement uses specified reference points, so mast length, sail-setting limits and rigging attachment heights are not interchangeable descriptions of the same dimension.
The rule
The rig includes spars, spreaders, rigging, fittings and relevant corrector weights. Standing rigging mainly supports spars; running rigging mainly adjusts spars, sails or appendages. A mast measurement uses specified reference points, so mast length, sail-setting limits and rigging attachment heights are not interchangeable descriptions of the same dimension.
In practice
Rig measurements follow prescribed alignment and loading conditions. Adjustable fittings are placed to give the greatest measurement value, and external pressure is not applied unless required. The racing rules normally require crew power to operate rigging and spars. Electronic or powered adjustments are therefore not automatically legal merely because the equipment physically fits the boat; check authorised class changes.
Sources & approach ↗