
KA Sail KONCEPT Overview
Craig Spottiswood, 50.01 knots on the dial, 49.87 knot 2 second peak and all time fastest 5×10 second on GPSSS of 47.76 knots. The sail, KA Koncept 5.0
Tony Wynhoven. First ever GPSSS World record of 47.52 knots. The sail, KA Koncept 4.4
Results speak for themselves, so if you are serious about going fast the KA Koncept should be on the top of your shopping list. For 2011 KA Chief Designer Andrew McDougall and PWA Racer Jesper Orth have combined science and practicality to push the limits of this amazing sail even further. Every dimension has been meticulously reviewed using the KA developed McSail design software, the World’s leading computer aided design system for Windsurfing. Seam shaping and luff curve have been refined to the sub millimetre. The result is more power and less drag. More area has been added to the lower third of the sail with slightly increased boom lengths. This has improved the backhand feel, minimising the risk of over sheeting and enhancing the acceleration out of gybes, a must for slalom racing. Twin clew eyelets have been added increasing the already amazing wind range, the upper setting more suited to downwind speed sailing and the lower setting for slalom racing and freeride.
Construction enhancements include a 2 ply Dacron head panel eliminating Xply creasing while rolling the sail, material changes to the luff panel
and leech reinforcement reduce weight. The full array of abrasion resistance enablers ensures the sails durability and longevity.
2011 Koncept. The science of speed!!
KA Sail KONCEPT Specifications
| Size | Luff | Boom | Mast | Head |
|---|---|---|---|---|
| 4.0 | 360 | 153 | 340/15 | Fixed |
| 4.4 | 378 | 156 | 370/17 | Fixed |
| 5.0 | 406 | 163 | 370/17 | Fixed |
| 5.8 | 436 | 175 | 430/21 | Fixed |
| 6.6 | 466 | 186 | 460/25 | Fixed |
| 7.5 | 482 | 203 | 460/25 | Fixed |
| 8.5 | 510 | 216 | 490/29 | Fixed |
| 9.5 | 532 | 233 | 520/33 | Fixed |
GPS-Speedsurfing.com results

- 83.0 Craig Spottiswood Fri, Mar 01, 2013
- 82.3 Craig Spottiswood Sat, Sep 08, 2012
- 83.9 Tony Wynhoven Thu, Mar 01, 2012
- 83.0 Martin van Meurs Thu, Jan 12, 2012
- 81.5 Mathew Robertson Sun, Jul 10, 2011



