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Neilpryde RS-Racing Evo VII

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Neilpryde RS-Racing Evo VII

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HIGHLIGHTS

DRIVE AND STABILITY


For the EVO7 we developed a progressive leading edge design that focuses the sail on top-end performance. An increased leading edge curvature supported by a wider luff sleeve aerodynamically generates more forward thrust and acceleration. The luff sleeve is up to 20% wider (in the boom area) supporting the extra fullness, locking the profile in and keeping it stable. Smooth, laminar airflow on the leeward side created by this new sail shape ensures minimal drag despite increased thrust. 


CONTROL AND ACCELERATION


Introduction of two carbon tube battens above the boom allows for power release in the mid leech section. This reactive mid leech prevents the draft from migrating back and releases excessive thrust generated. Using carbon battens meant that we could achieve the best stiffness to weight ratio, allowing for faster leech response. This power release system enables the rider to control the extra thrust created by the new sail profile, holding the shape and resulting in better acceleration.

Increased leading edge curvature generates more thrust

Carbon tube battens release excess power and lock the profile for more acceleration

 

QUADRUPLE LUFF PANEL LAYOUT


EVO7 features four continuous luff panels that carry most of the sail body shaping. This configuration stabilises the critical section draft position while also providing lightweight yet stretch-resistant way of increasing the film thickness proportional with downhaul load distribution. Continuous panels eliminated horizontal seams crossing the highly loaded leading edge, which increases response of the sail as well as durability. Introduction of this extremely stable leading edge platform that is able to take very high downhaul loads allowed us to integrate Clear Pocket construction in the remaining sail body.

 

COMPONENT SLEEVE CONSTRUCTION


The EVO7 sleeve is constructed by combining different materials with specific properties to achieve optimum profile entry stability and elasticity, critical for rotation and light weight. The front upper section (1) is made from lightweight woven material that has necessary elasticity and durability to resist wear from direct contact with the mast. Behind this panel there is a low stretch Dyneema™ ArmourWeb section (2) that takes high downhaul tension and is critical in stabilising the profile entry, providing smooth bridging between Ultra Cams. Inserted between this Dyneema™ panel and the sail body is a very lightweight, rip-resistant laminated film/taffeta with Dyneema™ yarns (3). Film controls the stretch, Dyneema™ provides ultimate rip resistance and taffeta is crucial for stitch holding. Bottom part of the sleeve is finished using our Luff Glide material as on other NeilPryde sails. This material combines very low friction against the mast (important for smooth rotation) with excellent durability and necessary elasticity in the bottom part.

 

CLEAR POCKET BATTEN SLEEVE


On the EVO7, overlapping body panels create a sleeve for battens, eliminating the need for traditional separate batten pockets. This obviously saves on unnecessary weight and simplifies construction. Much more importantly, Clear Pockets create a fully symmetrical batten cavity, eliminating the tendency of traditional batten pockets to load differently from one tack to another. Traditional batten pockets, sewn on one side of the sail make the sail body set deeper when they are on the leeward side of the profile than when they are on the windw ard side. Clear Pockets, set the battens effectively in the middle of the horizontal cross section of the sail, avoiding this problem.

 

FORCELINE


The clew area of the EVO7 features a custom laminated Kevlar™ Forceline Panel for load distribution. Load spreading Kevlar™ strips are laminated directly onto the sail body, fanning from the point load at the grommet and continuously crossing over panel joints. This not only provides optimum load distribution but it makes for extremely lightweight yet strong construction eliminating any air pockets present in traditional patch construction. 

FEATURES

1Open Integrated 
Compact Clew

2Mini Batcams

Dual Tube Batten

3UltraCams

4Carbon Leech 
Mini Battens

5Batten Chafe Protection

6Kevlar Batten Bridges

7Aerodynamic Boom cutout closure

8Dual Clew Eyelets

9Three-Piece Cam Battens

10Dynamic Luff-Sleeve Shaping

11Batcam Screw Adjuster

12Clew Batten

Single Tube RDM Batten

Single Tube RDM Batten

RDM Carbon Tube Batten 

13Mini Carbon Battens 

SDM Carbon Tube Battens 

Three-Piece Cam Batten

Three-Piece Cam Batten

 

1Open Integrated Compact Clew

Has all the advantages of the Dynamic Compact Clew and optimized foot outline as well as extra surface under the boom. The gap between the sail and the board is now closed when the sail is sheeting in.

Click here for more details.

2Mini Batcams

Streamline and reduce weight in critical upper leech.

3Ultracam

Innovative suspended camber system dramatically improves sail rotation and acceleration out of gybes. Simultaneous tuning of battens and cambers makes the sail easy to tune.

Click here for more details.

4Carbon Leech Mini Battens

Provide max support with minimum weight.

5Batten Chafe Protection

Abrasion resistant PU print to help protect the battens from damage caused by rigging or boom contact.

6Kevlar Batten Bridges

To distribute the high downhaul load crossing the battens

7Aerodynamic Boom cutout closure

Prevents the apparent wind from blowing into the mast sleeve and generating drag.

8Dual Clew Eyelets

Allowing fine individual tuning.

9Three-Piece Cam Battens

A 3-piece batten provides the framework for the design of a smooth, lightweight and stable sail profile.

A. Carbon/fiberglass tube: stiffest section.

B. Hollow mid-section: medium stiffness.

C. Precision Tapered CNC Batten: variable stiffness.

10Dynamic Luff Sleeve Shaping

A. Increasing the width of the double surface leading edge in the area where the profile is deepest, ie in front of the rider, helps to keep the draft stable in this critical area.

B. Decreasing the width of the double luff in the head allows the sail to twist off more smoothly and under less load. This reduces tension on the leech.

11Batcam Screw Adjuster

For easy and precise tension application.

Click here for adjustment instructions.

12Clew Batten

Providing clew support and load distribution.


13Mini Carbon Battens

For a smoother leading edge in the upper area where no cams are used.