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Describes a fabric which has Kevlar yarns for extra strength in critical directions. Kevlar is a man-madefiber of incredible strength and lightness. This material is made only in laminated form, which means the
Kevlar yarn is glued to a film of plastic-like material.(Kevlar/mylar, Technora ™ ) Spectra ™ > Describes a fabric which has Spectra yarns for extra strength in critical directions. Spectra is a man-madefiber with the hightest modulus of any of the fibers mentioned. Spectra has incredible tear strength andvery good U.V. resistance. The material is generally found in laminated products. Figure 4 Mylar / Polyester Film > Fairlead back tightensthe foot, flattening thebottom third of the sail,and letting the leechraise up (more twist).Fairlead forward createsa fuller sail, but pullsthe leech down,reducingtwist. Any fabric which gets its strength from a backing of plastic film. This material can be either single sided(film on one side only), or can be a “scrim” style material (plastic film on both sides with a strength-giving weave of threads sandwiched in between).(Laminate) Parrel beads > A wire strop covered in plastic balls used to attach free flying sails to the forestay over a roller-furledsail. (Figure 6) Oz(USA) Figure 5a
Kevlar ™ > At Neil Pryde we use the industry’s standard measurement of weight, the American sailmakers’ yard (36”x 28”). Some sail lofts use English ounces per square yard although this is becoming increasinglyuncommon. Standard European units are grams per square meter. Multi Track Foam Luff > Neil Pryde’s innovative foam luff tape system that promotes shape flattening of headsails when usingroller furling gear, yet does not permanently distort with time as do solid foam luff systems. Tightening the backstay
pulls the top of the mastbackward, and bends itforward in the middle.This flattens the mainsailin the middle. Broad-seaming > Rounding the edges of sail panels to create 3-Dimensional shape.(Takeups, shape) (Figure 7) CDT > “Continuous Development Technique” is the name of the Neil Pryde computer design system that createsa sail shape defined in numerical format. (“mould, “tin plate”) Figure 5b Warp-oriented > A fabric that has its strongest threads—and therefore its greatest strength—running along the length ofthe cloth. Used in the production of radial sails. Fill-oriented > A fabric that has its strongest threads—and therefore its greatest strength—running along the width of thecloth. Used in the production of cross-cut sails. Also as the backstay is
tightened, the forestaypulls up and forward onthe jib, flattening it aswell. Overlap—(L.P.) Luff perpendicular > Expressed as a percentage of “J” (the distance from the bow to the mast) this figure indicates the size of a
specific genoa. Standard sizes are: #1 - 150% #2 - 135% #3 - 105% #4 - 80%
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