The 0I4 S-I is the ultimate in lightweight, manoeuvre-oriented performance.
The 20I4 S-I is the latest refinement of the manoeuvre-oriented wave sail. The higher tension head and leech combined with flatter, faster profiles give a very active ride. Add to this the higher clew geometry and you have a sail that is essentially a loaded spring, ready to drive vertically into the lip or accelerate instantly to launch velocity.
The S-I remains the lightest wave-sail in our range, benefitting from our highest tech materials. A lighter wave sail means higher performance. It will be easier to manoeuvre, faster to accelerate and more accurate to position.
Last year’s S-I saw it change to a 4-batten layout. This greatly softened the sail and gave it the advantage of being very forgiving when landing moves. The downside was a narrower wind range. So for 20I4 the design brief was to increase wind range and stability, whilst maintaining all of the 0I3 S-I’s positive aspects. The R&D process included a detailed study of aspect ratios, head tensions, bias loads and their effects on e5 and eM3. The end result saw an increased aspect ratio, higher skin tension and more elasticised head tension. A wind range that used 3 sails to cover last year, can now be covered with 2.