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The new Tempest delivers the stability and speed of a Worldcup race sail in a package that features three cambers, and a freerace temperament. It’s cross-over potential is huge. The Tempest is the best cam sail for 90% of the performance market. Take it cross-wind slalom sailing one day, and the next plug it into your foil board to rip around your local venue. The new twist flow gives a steady, centered pull that will accelerate hard and unlock blistering speeds. We keep it simple and feather-light with a mid-sized luff sleeve and sensible rotation. Add to that an aerodynamic efficiency that will find you using a smaller sail than your neighbor, and you have redefined a category.

Take one custom Twaron membrane, a skeleton that includes carbon battens, Avanti Arc Cams, and world-class detailing, and you simply have a product that stands apart.

Avanti Sails Tempest Filler 2

The original Tempest was shockingly good. That sail taught us that true Worldcup-level stability could be squeezed into a seven-batten sail. It drove our thinking and heavily influenced R&D since its debut. Our highly regarded Machine M-6 series was a direct descendant for good reason. In approaching the re-design, we started with an incredible foundation of success and added details, like aerodynamic batten angles, and even easier rotation. There is no question that this one is a winner…

– Dennis Boisen

New In 2019

Seven Battens. With a deduction in battens, this new skeleton is lighter, easier to rotate, and more agile.

Flow Aligned Battens. The new Streamlined Design features a fanned batten layout. This new batten layout reduces drag and increases acceleration, while maintaining the stability of a more traditional cross batten position.

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Twist Dynamics. Each sails size has an upgrade the overall twist profile. The scooped twist flow works in harmony with the skeleton to give the sails and easy breathing feel over a tremendous wind range.

Foot Batten Particulars. To improve rotation of the sail, foot cup has been slightly reduced to allow easier sail body rotation. Rather than kicked up, the foot and cross batten angles remain standard. Keeping this orientation, slightly more perpendicular to the foot edge, adds stability and reduces foot perimeter bounce in chop.

Performance & Durability

Reduced Batten Count. Less battens means less weight. Skeletal structure is derived from the membrane itself and the careful placement of loads within the sail skin.

Soft Battens. Softer batten profiles let sail foil round out with some return in the leech plate. This provides more lift per square meter, allowing riders to rig small and achieve better sail shapes in lulls.

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Less Twist. A straighter leech increases drive and power dramatically. Altogether the sail shaping works in harmony with itself, allowing takeoff at super-low wind speeds.

Camber Induced. Utilizing cambers throughout results in a super even leading edge foil top to bottom. Rotation is effortless with our Avanti ARC Cams carefully balanced with extra light pressure.

Advanced Features

Head Loading. Improved string mapping keeps the sail head under constant load ensuring the twist and drive of the sail is always under control and in place.

No Sock Center Seam. Our single piece leading edge sock panel with no center sock seam reduces turbulence and adds durability.

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Rock Solid Skeleton

– Rainbow Batten Trajectories. Rainbow Batten Trajectories minimize pocket stretch and ensure rigged symmetry.

– Anti-Abrasion Silicon Bumpers, U-Channel & PVC X-Batten Strips prevent unnecessary wear.

– MicroLight Batten Tensioners provide balanced loading and even skin tension.

Lightweight Components

Nylatron Tack Pulley. Super lightweight ‘Nylatron’ tack pulley wheels save weight and allow easy downhauling.

Kevlar Reinforced Fairings. Reinforced head and tack fairings give maximum durability against abrasion.

Sail Foot
Condor ARC Cams

Performance Components

ARC Cams. The Arc Cam’s defining attribute is an extra curved sidewall which perfectly matches aerodynamic requirements at the sails’ leading edge. These well-designed cams add stability and promote smooth rotation coming out of tacks and gybes.

Ultimate Protection

– Helix Leech Plys minimize cyclical flexing along a given line and extend longevity and toughness of leech.

– Teijin 8083 luff sleeve material gives excellent durability and repels water.

– Kevlar Reinforced Fairings give maximum durability against abrasion.


5.6421176/1782373Avanti 400 RDMTBA
6.3442190/1921473Avanti 430TBA
7.0458204/2063073Avanti 430TBA
7.6476218/2201873Avanti 460TBA
8.4493228/230573Avanti 460TBA
9.2516243/2461873Avanti 490TBA

Technical Layout

Sails Tempest 19 2