Mainsail
Mainsail
Section titled “Mainsail”The mainsail is the primary driving sail and often the most technically complex sail on the boat. This section covers every system and specification you need to advise your customers.
Documents
Section titled “Documents”How the mainsail attaches to and moves along the mast. Covers bolt rope, slide systems (standard, full-batten), and car systems (Battslide, Rutgerson). Includes compatibility matrices and brand specifications.
Comprehensive batten guide: full-length vs short battens, batten materials (fiberglass, carbon, composite), pocket construction, and the critical relationship between battens and sail shape. Includes batten tensioning and replacement procedures.
Single-line, slab, and in-mast furling reefing. Covers reef point positioning, cringle hardware, and reef line routing.
Corner fittings (tack, clew, head), headboard specifications, outhaul systems, cunningham, leech line, and all reinforcement details.
Quick Reference: Mainsail Configuration by Sailing Style
Section titled “Quick Reference: Mainsail Configuration by Sailing Style”| Sailing Style | Luff System | Battens | Reef System | Material |
|---|---|---|---|---|
| Cruising | Slides or bolt rope | Short or full (fiberglass) | Slab (2-3 reefs) | Dacron or Hydranet |
| Performance Cruising | Cars (Battslide) | Full-length (composite) | Slab (2-3 reefs) | LoadX Endumax |
| Club Racing | Cars (Battslide/Rutgerson) | Full-length (carbon) | Slab (2 reefs) | LoadX Carbon |
| Grand Prix | Cars (Rutgerson) | Full-length (carbon) | Slab (1-2 reefs) | LoadX Carbon (no taffeta) |
| In-Mast Furling | Bolt rope in foil | No battens (or vertical) | Furling | Dacron or XRP |
Related Modules
Section titled “Related Modules”- LoadX Technology — Core material technology used in performance mainsails
- Components — Shared hardware specs (corner fittings, threads, luff tapes)
- Measurement — Mainsail — How to measure for a mainsail