CRUISING GENOAS & JIBS
Radial Taffeta
Tri-radial panels aligned with the loads, taffeta both sides — better reefed shape on the furler than any cross-cut cloth.
Photo © UK Sailmakers
Tri-radial layout
Long, narrow panels radiate from the three corners along the load paths connecting them — cloth warp aligned with the loads.
Better than cross-cut
The narrower the panels, the better the shape-holding — a clear step up from basic cross-cut construction.
Proven and repairable
Conventional cloth and seams any loft in the world can service.
HOW IT'S BUILT
Panels that follow the loads.
Radial construction cuts the sail into long, narrow panels that radiate from the corners, following the load paths that connect tack, head, and clew. Aligning the cloth’s strongest direction with the loads reduces stretch where it matters most.
It is the classic performance construction for woven and taffeta-finished cloth — more labor than cross-cut, rewarded with visibly better flying shape as the breeze builds.
AT A GLANCE
Appearance Grey, white
Shape stability ★★★☆☆
Durability ★★★☆☆
Price band $$$–$$$$
ISL upgrade Not available
HOW IT LOOKS, HOW IT WORKS
Radial Taffeta in detail.
Photos & diagrams © UK Sailmakers
QUESTIONS SAILORS ASK
FAQs
A radial sail is built from long, narrow panels (gores) that radiate from the three corners, so the cloth’s strongest warp yarns line up with the loads that arc between the corners. Cross-cut sails run their panels horizontally with the strong yarns parallel to the leech; aligning the yarns with the actual loads gives a radial genoa flatter, more stable shape-holding in the same cloth.
Radial was the original performance construction, before load-path (X-Drive) sails and membranes. A string or membrane sail holds shape better still, but a radial genoa is a proven, rugged, lower-tech choice for cruisers who prefer traditional woven or laminated cloth — often at a friendlier price, with simple repairs you can make almost anywhere.
Woven Dacron is the most economical and very tough. Polyester laminate holds shape a little better than woven. Spectra laminate and woven HydraNet sit at the top: the best shape-holding in the radial family, at the top of the price range. On a radial sail we can even mix cloths — stronger material where the loads are highest, lighter cloth elsewhere — to save weight without giving up strength.
HydraNet is a woven cloth with a high share of Ultra-PE (the Spectra/Dyneema family) woven tightly with high-tenacity polyester. It gives you laminate-like shape retention in a woven sail — lighter than Dacron of equal strength, with a soft hand and a classic white look. Being woven, it’s also breathable (less prone to mildew than a laminate) and can be repaired anywhere with a sewing machine, which is why long-distance cruisers love it.
Yes. Radial genoas are built for furling as a Passagemaker: a foam luff for better shape when reefed, reef reinforcements on the foot and leech, and sewn-on UV leech and foot covers to protect the sail while it lives on the headstay.
Other cruising genoas & jibs builds
Same sail, different construction — compare them all.