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Racing Certifications

Standards compliance for IRC, ORC, and One-Design racing.


We ensure full compliance with World Sailing Equipment Rules and specific rating rule requirements. All racing sails are designed and built to meet the declared specifications.


RequirementDescriptionCompliance
Rule 21Sail MaterialsFull Compliance: All materials used are on World Sailing approved list.
Material DeclarationSpecific gravity/density checkData provided for unusual laminates.
MeasurementSail Area CalculationPer IRC definitions (SPA, HSA, MSA).
  1. Design Phase: Dimensions optimized for rating benefit vs. performance.
  2. Manufacturing: Built to precise design dimensions (±0.5% tolerance).
  3. Measurer Verification: Sails delivered “measurement ready” for local IRC measurer.
    • Battens: Hard points clearly marked.
    • Corners: Measurement points defined.

Documentation: Start-point dimensions provided to client for certificate application.


RequirementDescriptionCompliance
IMS RuleInternational Measurement SystemFull compliance with IMS geometry definitions.
Appendix AMeasurement InventorySail inventory declaration form provided.
Aerodynamic ModelLift/Drag coefficientsStandard shapes align with VPP assumptions.
SailKey DimensionsNotes
MainsailP, E, MGT, MGU, MGM, MGLQuoted vs. Measured width checks.
HeadsailJL, LPG, JLuff Perpendicular critical for rating.
SpinnakerSLU, SLE, SFL, SHWHalf-width area calculation.

Process:

  • Sails measured by official measurer.
  • Measurement sticker applied.
  • Data uploaded to ORC database via national authority.

Strict adherence to class-specific rules for hull, rig, and sails.

LevelDescriptionExample Classes
Strict One-DesignBuilder-supplied or strictly licensed designs.Laser, J/70 (some), Etchells
Box RuleMust fit within max dimensions; material limits.TP52, Class 40, IMOCA 60
Development ClassOpen design within few constraints.Mott, 18ft Skiff
  1. Royalty Tags: Purchased from class association (if required).
  2. In-House Measurement: Check against class max/min templates.
  3. Official Measurement: Sail measured by Class Measurer at regatta or loft.
  4. Stamp/Button: Official class button or stamp applied to tack.

Our Role:

  • We guarantee sails measure in for the class ordered.
  • We supply royalty tags if requested (at cost).
  • We provide measurement forms filled with build specifications.

World Sailing Equipment Rules of Sailing (ERS)

Section titled “World Sailing Equipment Rules of Sailing (ERS)”

All sails are defined according to the current ERS 2021-2024 (or applicable version).

TermDefinition StandardImpact
PlySheet of materialMulti-ply allowed in specific classes.
ReinforcementAdditional layers at cornersSize limits in some classes.
Batten PocketMaterial enclosing battenPosition limits (e.g., leech only).
Foot ShelfLoose foot materialArea inclusion/exclusion.

Application: We use ERS definitions for all vague or undefined terms in local handicap rules.