Windsurf Sail Duotone DUKE 2024

Technical information

The DUKE combines LIGHT DONE RIGHT construction and all other construction concepts developed over the past decade to set a new benchmark for wind-oriented handling wings. Maximum wind excursion especially in variable and/or super gusty conditions. This is the most important factor and main advantage when choosing a 5 batten handling sail. As a simple rule, more battens give you more control and a wider wind range. This usually has a negative effect on low-end power as more battens make it harder for the wind to inflate the sail and it becomes less efficient at pumping. Therefore, the BATTEN FREE CENTER concept of the SUPER_HERO has been incorporated. Instead of the usual even distribution of battens, the DUKE features a larger gap between the lower batten and the batten above the boom. This makes the boom area easier to inflate and increases stability at the top (due to the higher density of the battens in this area). The second disadvantage is that each batten increases the weight of the sail. This is why in recent years there has been a trend towards fewer battens for wave sails. Feels super light in the hands but without flaking after 1-2 seasons. The low weight of 4-batten sails has been the main reason for the disappearance of 5-batten sails over the past decade. Fortunately, we've made some major construction improvements over the past 10 years. The result of this development was the LIGHT DONE RIGHT CONSTRUCTION which was introduced in 2022. By replacing the usual multi-layer reinforcements with a single layer of high-quality fabric and introducing the ONE PIECE SLEEVE we were able to reduce the overall weight by 300 g. Most importantly, Duotone is the only brand on the market where these weight savings have been achieved without reducing the thickness of the XPly film and panels. Another problem when reducing film thickness is that the sail becomes spongy as the energy fades due to the increased stretch. This makes the glider feel heavier in your hands. So unlike others, Duotone sails are not only lighter in scale but more importantly in your hands on the water when you use them. To achieve maximum planing power, the DUKE features a high draft distribution combined with a deep profile that helps lift the board when planing. To make tricks and turns as easy as possible, the glider should become completely neutral during maneuvers. Therefore, DUKE has a more future-oriented draft position. The forward draft shuts off the power and becomes completely neutral as soon as you shear or move the sail. This results in a much higher success rate. The higher draft position also increases your flight time as it generates lift, while the more forward-oriented draft position helps you maintain control at all times. One of the DUKE's greatest strengths is its versatility. It's pure ecstasy in bump & jump conditions on your freewave board or as a smaller sail for whizzing around on your freeride board. The forward/up position also makes it very suitable for classic and even new school freestyle tricks. And last but not least, it is a great sail for medium wave and/or jumping conditions, especially in gusty or challenging wind conditions. So, the DUKE is a true all-round high performance contender that challenges any maneuverable wing on the market. Similar feel to your larger Freeride/Performance sails Another important factor is that all sails in your quiver should have a similar feel/behavior. This also applies to professionals as it usually takes them too a whole day to get used to and adapt their style to a wing that looks very different. The main reason why sails feel different is the position of the draft in the sail. Luckily, the DUKE has you covered here too as it features a very similar draft position to the vast majority of all modern freeride sails. The DUKE features a 50% monofilm construction with all high load areas (footer, clew, top, luff) reinforced with XPly.

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