DUOTONE SAILS 2020 Teaser Warp 20.20
WARP 20.20
3D
SIZES
5,05,56,27,07,78,49,0

WARP 20.20

WORLD CUP SLALOM

Art.-No. 14200-1214

THE LEAST PHYSICAL YET MOST COMPETITIVE SLALOM SAIL OUT THERE

CHARACTERISTICS

Compared to S_Pace and E_Pace

Planing
Acceleration
Handling
Stability / V-Max
Rec. Skill Level

KEY FEATURES

WARP 20.20

NO COMPROMISE DESIGN

Guarantees an ideal mix of maximum power and forward pull without loosing stability / wind-range or becoming super physical

HYPER CAM 2.0

Completely new and technically superior: the camber revolution with adjustable length - for optimised rotation and increased performance

SIZESPECIFIC DESIGN

Thanks to three different, size-dependent concepts each sail size is individually matched to the wind strength

XPLY BATTEN POCKET

Eliminates stretch and doesn´t absorb any water (dry weight = wet weight)

7 BATTEN DESIGN

Makes the WARP one of the lightest Slalom sails on the market

SUPER-LIGHT BUMPER

The lightest protector on the market, with integrated trim indicator

iROCKET 2.0

Factory calibrated individual batten tensions using a torque wrench

MODERATE CUTAWAY CLEW

Less blow out / hinge-effect for more power and more direct acceleration

ON THE COURSE FOR THE COURSE

Developed and tested in real racing conditions on the course against all competitor sails convinced us that the WARP can beat anything out there

We do care

Duotone Climate Partner
CO2 COMPENSATED PRODUCT
MORE INFORMATION
Making the most sustainable Windsurfing products on the market

Sustainability is the most important and pressing challenge of todays mankind to secure a livable mother earth for future generations to come!

Over the last 50 years Windsurfing has developed into a super high tech sport. But let's face it despite what others might tell you with the exception of aluminium booms and extensions Windsurfing products are a "mixture of petrol-based plastic trash". And most times up to 100% of this plastic trash are non-recycled (means "freshly produced") plastics. 
At least as of today there are no eco-friendly substitutes existing offering the minimum requirements necessary to design modern Windsurfing products. Or why do you think no one wants to sail with wooden booms, aluminium masts or stretchy sails made of woven fabrics anymore?
There is only one sustainable way out of this dilemma:

MAKING LONGER LASTING PRODUCTS (LONGEVITY = SUSTAINABILITY)
A high performance product that lasts longer and best case can even be put into additional use on the second hand market is the best and only way to conserve the resources of our earth.
Of course light components have a massive impact on the performance and handling of your rig. That's why light weight is always on our briefing list when designing and engineering new products. And DUOTONE products are among or in many cases are the lightest on the market.
But durability and longevity were and will ALWAYS be on top of our priority list. Our industry leading warranty extensions bear witness to this philosophy:
- 2 year unconditional warranty on almost every hardware product (masts, booms and extensions+bases).
- 5 year warranty on 80% of our sails.
On sails we cannot emphasize enough that especially reducing the thickness of the monofilm and the XPly laminate has a radical influence on the longevity/sustainability. Reducing the film thickness by 50% reduces the UV-stability by 70%. Just to shortterm impress magazine testers or customers some brands use up to 70% thinner laminates/films than we do. This is not our understanding of sustainability.

DOING MORE
However, since we are fully aware of the importance of sustainability, we cannot simply stop here.
>> Only we have stopped using any plastic for packaging our sails. This saves approx. 5 sqm of plastic film and foam per sail.
>> Only our aluminium products (booms and extensions+bases) are manufactured in a CO2 neutral production facility.
>> Only our aluminium products (booms and extensions+bases) are produced in Germany using 100% European raw materials in order to keep shipping distances (to our manufacture and then to our central warehouse) at a minimum.
>> Only our sail bags are made out of 100% recycled plastic.
>> Only we compensate all carbon emissions caused by our sails during manufacture and transport by supporting a hydropower carbon offset project in Sri Lanka, the country where our sails are produced.

Wanna know more?

Duotone Windsurfing Sails 2020 Warp Product Video

DETAILS

WARP 20.20

The WARP 9.0LW won six of the seven eliminations in the 2015 racing season, making it the most successful slalom sail in PWA history. It was our first racing sail with a completely new, revolutionary profile concept called the NO COMPROMISE DESIGN. With extreme propulsion, boundless speed and a design intended for victory with no compromises, this is quite simply the ultimate World Cup racing sail. Thanks to the NO COMPROMISE DESIGN, the WARP 20.20 also possesses greater planing power and acceleration after start and gybe compared to other sails, without requiring more strength on the part of the rider. This gives riders greater strength reserves over the entire racecourse and allows them to concentrate on manoeuvring. Combined with the unrivalled effortlessness of camber rotation, this makes the WARP 20.20 the first choice for more than just World Cup riders.
More than three years of development went into the profile and design concept of the WARP 20.20, whose panel-based layout takes into account the wide range of factors influencing the rig. And the result is outstanding – with the NO COMPROMISE DESIGN, all WARP sails generate enormous propulsion and more acceleration at the start and after a gybe. The key characteristic is that this propulsion does not kick in abruptly and thus does not require lots of effort to absorb. Instead, the forward pull is much more controlled and effortless than other power slalom sails. This relieves strain on the rider, giving them strength reserves for the rest of the course, and allowing them to concentrate fully on the racing action. And with the correct luff and outhaul tension, the WARP performs across the entire wind range with the same trim.

Tech Specs

Warp 20.20

SIZES
BOOM MAX (CM)
LUFF MAX (CM)
VARIO TOP
BATTENS
CAMBER
WEIGHT (KG)
MAST TYPE (BEST/ALT.)
MAST GEO (BEST/ALT.)
MAST LENGTH (BEST/ALT.)
5.05.56.27.07.78.49.0
175183197213221231241
393412432452484504516
7777777
4444444
4.805.205.505.806.206.606.80
PLATINUM/--PLATINUM/--PLATINUM/--PLATINUM/--PLATINUM/--PLATINUM/--PLATINUM/--
SDM/--SDM/--SDM/--SDM/--SDM/--SDM/--SDM/--
380/--380/--400/--430/--460/--490/--490/--

Duotone design philosophies

Think different

Products have to be intuitive and as fast as possible to setup

With the information overkill nowadays no one has the time to read manuals anymore. Therefore we try hard to design our products as intuitive as possilbe to get you onto the water faster than with any other product. No wonder DUOTONE is called the feature world champ.
Here are some examples:

  • VTS 2.0
    The first "guess-free" visual trimming guide to clearly show the correct downhaul tension. Version 2.0 comes with a window in the protector to mark your individual trim once you have found your ideal setting. 
     
  • HTS 2.0
    By marking the draft position on the sail you immediately know where to position your harness lines. 
     
  • INDIVIDUAL BOOM LENGTH INDICATION
    The length of the boom changes with the angle to the mast. Therefore if you move your boom up or down you need to change the length of your boom. As the only brand we take that in consideration by printing 3 different boom lengths onto the clew and boom cutout so that you always know the correct length according to your body/boom height. 
     
  • SET&GO VARIO-TOP
    Instead of leaving you with the time-consuming try and error procedure to find the correct setting we have installed markings on the webbing immediately showing the correct setting. 
     
  • iROCKET 2.0
    Every batten in a sail requires a different tension. That's why as the only brand we calibrate every single batten at the factory to the correct individual tension using a torque wrench. Since the screws are locked with screw glue you never have to touch them. Just rest asured to always have prefect batten tensions. 
Polyester webbing only

Eliminating stretch and loss of tension. If it’s good enough for safety belts, it’s good enough for windsurfers! We are the only manufacturer to use only polyester webbing for the (vario) top and the tack roller. This advantage of this compared to conventional polypropylene is the negligible amount of stretch. As a result even brand new sails will retain full luff tension and will not need subsequent trimming.

TECH FEATURES

HYPER CAM 2.0
HYPER CAM 2.0HYPER CAM 2.0

Optimum performance and camber rotation at any time! HYPER CAM 2.0 is the camber revolution for even more sail performance. The secret is a variable slider which gets adjusted via a Torx stainless steel screw, determing the camber length (patent pending). Further extended results in maximum propulsion, slightly shortened optimizes the rotation. The difference is clearly noticeable and has a great influence on the performance level of the sail. The camber length can be changed by anyone within seconds and adjusted to his preferences, even under full sail tension. Despite this unique additional function, the HYPER CAM 2.0 is only slightly heavier since the housing is weight-optimized.
But that’s not all that it offers:
Advantage 1:  
Super-fast rigging up (only rolling on instead of snapping on) without having to correct luff and outhaul tension multiple times.
Advantage 2: 
Minimal friction and very gentle batten rotation, since the HYPER CAM has exposed pulleys without plastic braces and only the pulleys touch the mast.
Advantage 3: 
Optimised shape for the best possible luff sleeve profile and ideal aerodynamics.
Advantage 4: 
Suitable for all mast diameters because only the pulleys touch the surface and never the plastic structures themselves, allowing the HYPER CAM to rotate with extreme ease.
Advantage 5:
Fast and easy length adjustment for individual tuning of max. performance vs. ease of rotation.
Attention: due to new batten attachment not retrofitable to HYPER CAM 1. generation sails.

HYPER CAM 2.0
HYPER CAM 2.0HYPER CAM 2.0

Optimum performance and camber rotation at any time! HYPER CAM 2.0 is the camber revolution for even more sail performance. The secret is a variable slider which gets adjusted via a Torx stainless steel screw, determing the camber length (patent pending). Further extended results in maximum propulsion, slightly shortened optimizes the rotation. The difference is clearly noticeable and has a great influence on the performance level of the sail. The camber length can be changed by anyone within seconds and adjusted to his preferences, even under full sail tension. Despite this unique additional function, the HYPER CAM 2.0 is only slightly heavier since the housing is weight-optimized.
But that’s not all that it offers:
Advantage 1:  
Super-fast rigging up (only rolling on instead of snapping on) without having to correct luff and outhaul tension multiple times.
Advantage 2: 
Minimal friction and very gentle batten rotation, since the HYPER CAM has exposed pulleys without plastic braces and only the pulleys touch the mast.
Advantage 3: 
Optimised shape for the best possible luff sleeve profile and ideal aerodynamics.
Advantage 4: 
Suitable for all mast diameters because only the pulleys touch the surface and never the plastic structures themselves, allowing the HYPER CAM to rotate with extreme ease.
Advantage 5:
Fast and easy length adjustment for individual tuning of max. performance vs. ease of rotation.
Attention: due to new batten attachment not retrofitable to HYPER CAM 1. generation sails.

HYPER CAM 2.0
HYPER CAM 2.0HYPER CAM 2.0

Optimum performance and camber rotation at any time! HYPER CAM 2.0 is the camber revolution for even more sail performance. The secret is a variable slider which gets adjusted via a Torx stainless steel screw, determing the camber length (patent pending). Further extended results in maximum propulsion, slightly shortened optimizes the rotation. The difference is clearly noticeable and has a great influence on the performance level of the sail. The camber length can be changed by anyone within seconds and adjusted to his preferences, even under full sail tension. Despite this unique additional function, the HYPER CAM 2.0 is only slightly heavier since the housing is weight-optimized.
But that’s not all that it offers:
Advantage 1:  
Super-fast rigging up (only rolling on instead of snapping on) without having to correct luff and outhaul tension multiple times.
Advantage 2: 
Minimal friction and very gentle batten rotation, since the HYPER CAM has exposed pulleys without plastic braces and only the pulleys touch the mast.
Advantage 3: 
Optimised shape for the best possible luff sleeve profile and ideal aerodynamics.
Advantage 4: 
Suitable for all mast diameters because only the pulleys touch the surface and never the plastic structures themselves, allowing the HYPER CAM to rotate with extreme ease.
Advantage 5:
Fast and easy length adjustment for individual tuning of max. performance vs. ease of rotation.
Attention: due to new batten attachment not retrofitable to HYPER CAM 1. generation sails.

HYPER CAM 2.0
HYPER CAM 2.0HYPER CAM 2.0

Optimum performance and camber rotation at any time! HYPER CAM 2.0 is the camber revolution for even more sail performance. The secret is a variable slider which gets adjusted via a Torx stainless steel screw, determing the camber length (patent pending). Further extended results in maximum propulsion, slightly shortened optimizes the rotation. The difference is clearly noticeable and has a great influence on the performance level of the sail. The camber length can be changed by anyone within seconds and adjusted to his preferences, even under full sail tension. Despite this unique additional function, the HYPER CAM 2.0 is only slightly heavier since the housing is weight-optimized.
But that’s not all that it offers:
Advantage 1:  
Super-fast rigging up (only rolling on instead of snapping on) without having to correct luff and outhaul tension multiple times.
Advantage 2: 
Minimal friction and very gentle batten rotation, since the HYPER CAM has exposed pulleys without plastic braces and only the pulleys touch the mast.
Advantage 3: 
Optimised shape for the best possible luff sleeve profile and ideal aerodynamics.
Advantage 4: 
Suitable for all mast diameters because only the pulleys touch the surface and never the plastic structures themselves, allowing the HYPER CAM to rotate with extreme ease.
Advantage 5:
Fast and easy length adjustment for individual tuning of max. performance vs. ease of rotation.
Attention: due to new batten attachment not retrofitable to HYPER CAM 1. generation sails.

TT Top
TT TopTT Top

Improved sail control at higher winds. Designer Kai Hopf originally designed the TT TOP for the WARP. The reduced, concave shape improves tension conditions for a more effective, three-dimensional top twist. This means the top twists not only horizontally, but also vertically under strong winds. By completely neutralising gusts of wind, the rig is kept steady in the rider’s hands, and thus works in a much larger range of winds.

iRocket 2.0
iRocket 2.0iRocket 2.0

Super-lightweight and aerodynamic.

An inconspicuous detail with a massive impact. iROCKET 2.0 batten tensioners are super-lightweight, aerodynamic and highly stable, consisting of high-quality components such as a self-lubricating, salt-water-resistant brass nut with stainless-steel screw which can withstand all batten tensions. Furthermore, the iROCKET 2.0 is an essential component for a true windsurfing revolution.

100% correct batten tension, correctly adjusted when purchased and forever after. We calibrate each individual batten at the factory according to development specifications. And we don’t just leave it up to blind intuition either – all battens are adjusted to 100% accuracy using torque wrenches. We also apply soluble screw adhesive to the locknuts so that the tension cannot be altered. This means that the batten tension remains absolutely correct and will never have to be adjusted again. The batten key included with the sail is therefore only needed for fine tuning or in the unlikely event of a batten breakage.

Mini Batten
Mini BattenMini Batten

These prevent unwanted leech flutter.

Short and highly effective mini-battens which provide support for the areas between the battens and prevent undesirable flutter.

Double Seam Technology
Double Seam TechnologyDouble Seam Technology

Double the durability with half as much stretch. DUOTONE manufactures products of unmatched quality which gives our sails a significantly longer lifetime. A key feature which helps to achieve this is the triple-stitch zig-zag seams. Unlike other products with their single-seam design, these are double-seam. They cover all exposed crash areas, which increases tear resistance and reduces bending-elongation by up to 50%, boosting profile stability and performance.

Mast Sleeve Opener
Mast Sleeve OpenerMast Sleeve Opener

Frictionless insertion of the mast into the luff sleeve. An ingenious solution does away with the tedium of inserting the mast. The DUOTONE logo above the boom cutout gently opens the sleeve so that the mast can be threaded with one hand into the luff friction-free, without having to constantly make adjustments to the luff.

Polyester Webbing Only
Polyester Webbing OnlyPolyester Webbing Only

Eliminating stretch and loss of tension. If it’s good enough for safety harnesses, it’s good enough for windsurfers! We are the only manufacturer to use only polyester webbing for the (vario) top and the tack roller. This advantage of this compared to conventional polypropylene is the negligible amount of stretch. As a result even brand new sails will retain full luff tension and will not need subsequent trimming.

Polyester Webbing Only
Polyester Webbing OnlyPolyester Webbing Only

Eliminating stretch and loss of tension. If it’s good enough for safety harnesses, it’s good enough for windsurfers! We are the only manufacturer to use only polyester webbing for the (vario) top and the tack roller. This advantage of this compared to conventional polypropylene is the negligible amount of stretch. As a result even brand new sails will retain full luff tension and will not need subsequent trimming.

Progressive Cutaway Clew incl. Cross Batten
Progressive Cutaway Clew incl. Cross BattenProgressive Cutaway Clew incl. Cross Batten

Optimum combination of minimised rotation forces, power, and handling. The CROSS BATTEN concept is the intelligent solution that shifts the draft position downwards while supporting the large surface area in the boom area. It also allows for an early planing profile without losing handling. Ideal in combination with the PROGRESSIVE CUTAWAY CLEW which has an extremely positive influence on the sail’s agility and handling, and allows for a shorter, more rigid boom. Both features vary depending on the sail type and size. That is, the more pronounced the CUTAWAY and the longer the CROSS BATTEN, the more flex and comfort achieved, especially when overpowered (“excess” sail area “flexes away” in a controlled manner). The more the sail is geared towards performance, the less pronounced both components are to ensure a more direct acceleration.

VTS VISUAL TRIM SYSTEM 2.0
VTS VISUAL TRIM SYSTEM 2.0VTS VISUAL TRIM SYSTEM 2.0

Perfect trim and a huge range of use.

You won’t find a quicker or more accurate way of trimming your sail. Even beginners can trim the sail in a matter of seconds to 100% accuracy. All you need to do is pull the luff until the top of the loose leech reaches the “lower wind limit” or “upper wind limit”. The VTS acts as a power boost, ensuring maximum performance and broader range of use.

SUPER-LIGHT BUMPER
SUPER-LIGHT BUMPERSUPER-LIGHT BUMPER

The lightest protector on the market, with integrated trim indicator.

3D TOP CAP
3D TOP CAP3D TOP CAP

Optimised pull. On regular top caps and pin systems the webbing is connected in a “one-dimensional” way with the sail body (either side to side or front to back), which transfers the downhaul tension only in certain points. The 3D TOP CAP allows a “three-dimensional” and very widespread transition of the downhaul forces into the sail body. This eliminates top fluttering and ensures a progressive loose leech extending the wind range. The integrated abrasion ribs eliminate the need for heavy, bulky reinforcements at the end of the luff sleeve.

TWIN TRIM CLEW
TWIN TRIM CLEWTWIN TRIM CLEW

Wider range of use, custom tuning options. The secret of the TWIN TRIM CLEW is the two horizontally placed clew eyelets. The outer eyelet position provides more power and a more direct feeling, while the inner position gives more control and a gentler riding feel.

INDIVIDUAL BOOM LENGTH INDICATION
INDIVIDUAL BOOM LENGTH INDICATIONINDIVIDUAL BOOM LENGTH INDICATION

The correct boom length without the need for trial and error. Because the boom is attached to the mast at different heights depending on body size, and because this creates a different angle to the mast, the boom length will vary. Specific recommendations for the correct length are printed directly on the luff sleeve at the boom level.

HTS 2.0 HARNESSLINE TRIM SYSTEM
HTS 2.0 HARNESSLINE TRIM SYSTEMHTS 2.0 HARNESSLINE TRIM SYSTEM

Never position your harness lines incorrectly again. Do away with the tedium of adjusting to the optimum rope position, as well as the numb forearms and the endless fiddling around. The patented print on the sail shows exactly where the centre of the harness line has to be. All you need to do is position the two ends symmetrically at the left and right of the print.

TRIPLE TACK ROLLER
TRIPLE TACK ROLLERTRIPLE TACK ROLLER

Find the perfect trim with minimal effort.

The integrated, nickel-plated brass triple roller minimizes the downhaul forces tremendously.

DURATECH FOOT
DURATECH FOOT

Long-term guarantee for the sail foot. When starting off on the water or catching up, the foot of the sail is constantly dragged over the nonslip coating, particularly for wide boards. With the exclusive DURATECH FOOT, the seams are completely protected within a large plastic channel so that the surface cannot chafe against seams and material.

TRUE QUOTES

WARP 20.20

PIERRE MORTEFON
“The WARP 20.20 is quicker to set up, saves more energy and is yet more competitive than any other slalom sail that I’ve ever sailed before.”
PIERRE MORTEFON

Sail Basics

Design physics of modern Windsurf sails

Materials

Especially in the top and towards the clew weight is key cause due to the leverage-effect you feel every gram a multiple times in your hands. Because of the quite limited amount of materials available though the only way to reduce the sail weight is by reducing the thickness of the materials. The secret is finding the sweet spot of lowest possible weight but without sacrificing durability and longevity/sustainability.

Modern Windsurf sails consist of the following raw materials:

(1) MAST SLEEVE MATERIAL
Rough woven Polyester fabric. The rough structure gives it a maximum abrasion resistance against impact from the outside (e.g. board contact or contact during rigging) as well as from the inside (through the mast).

(2) MONOFILM
Plastic film made out of Polyester available in clear- or colored versions. This hard plastic film has a very low stretch (for maximum performance) and doesn‘t absorb any water (dry weight = wet weight). Attention: monofilm isn't very UV-resistant. Therefore keep your sail out of direct sun light when not sailing. Also monofilm isn't very abrasion resistant.

(3) XPLY LAMINATE
2 thin layers of monofilm and a pattern of threads (out of Polyester or Dyneema) are glued together creating a sandwich laminate. The additional threads are supposed to function as a rip stop in case the film gets punctured (e.g. falling into the sail with your harness hook first). When using the same total thickness as monofilm (= same low stretch, same UV- and puncture-resistance) XPly is 30% heavier due to the additional adhesive (and threads).

(4) DACRON
Before discovering monofilm original Windsurf sails were made entirely out of Dacron. This woven fabric offers a very good abrasion resistance but is very stretchy plus elongates (means it grows with each use). Therefore nowadays mainly used for reinforcement patches to protect the monofilm and XPly panels in the high abrasion areas of your sail (foot, clew, top and outside of batten pockets).

(5) INSIGNIA
Dacron material with a self-adhesive side. Therefore it doesn‘t require seams when put on top of the film plus prevents water from getting in-between the film and the abrasion patches (= lower wet weight).

Wanna know more details or looking for DUOTONE sail spare parts - here you go

Materials
Design Features

BATTENS
Made out of glass- or carbon fiber either as solid version with smaller diameter (= stronger) or tube version with larger diameter (= stiffer). For a better understanding the mast is like the backbone of your sail whereas the battens act like the ribs of your sail keeping the profile in place. Same as the mast also the battens have individual profiles (thinner tip, thicker tail) matching the profile of the sail.
Simple rule: the more battens the more stable (= faster + bigger wind range) the sail becomes. But also the heavier the sail becomes as battens account for approx. 40% of the sails total weight. Therefore handling/wave-oriented sails usually come with 4-5 battens whereas performance oriented sails usually come with 6-7 battens.
As a second guideline smaller sail sizes require fewer battens than larger sizes.

CAMBERS
Usually there is a certain gap between the batten tip and the mast. This is necessary so that the batten can shift from one side of the mast to the other when sailing back and forth. A camber can be seen as a kind of connection between the batten tip and the mast filling out this gap.
This leads to much better aerodynamics as the cam enables a smooth transition between the thick mast into the thin sail body. In addition since the cam is braced against the mast the batten stabilises the sails profile much more effectively (sail becomes more stable = faster).
The downside is that the rotation from one side to the other becomes much harder. Plus the cambers need a certain space which requires a wider mast sleeve. This makes (water)starting much harder as the wider mast sleeve absorbs more water. Therefore cambers are mainly used on performance Freeride or high-performance Slalom sails.

FOOT ROACH
A sail with a lot of foot roach reduces the gap between the sail and the board (close the gap) which makes it more efficient/performance-oriented.
On the other hand a high cut foot with less foot roach improves the handling especially for all kind of ducking moves. 

PROFILE DEPTH
A deeper sail profile gives you more power and performance in general.
A flatter profile on the other hand improves the handling as the distance of the flat profile is much shorter when shifting from one side to the other.

BOOM- AND LUFF LENGTH
Together with the sail size all dimensions increase. Means in general the larger the sail the longer the boom- and luff lengths become.

Design Features
Sail size vs. body weight

Simple rule: a heavier sailor needs to take a larger sail size to get planning in the same wind compared to a lightweight.
Rough indication for the biggest sail size: to get going in the same wind a 10 kg heavier guy requires a 1 sqm larger sail.

Guidelines for building up your personal sail quiver

First you should define the biggest and smallest sail size you will need to cover all wind speeds you wanna sail in. This mainly depends on your body weight (see above).
Let’s take an “average” 75 kg sailor and let’s assume this guy wants to sail in “any kind” of wind.
- The biggest sail size this guy would need is something like a 7.3. With a capable 100-120 litre Freeride board this size would get him planning in approx. 8-10 knots.
- His smallest size would then be a 3.7. On a 70-80 litre (Free)Wave board our guy should be fine up to approx. 40-45 knots.

Second thing is to define the sizes in-between. Important to know: the wind pressure (which you feel in your hands) raises in square in relation to the wind speed. Therefore the smaller the sail size the smaller the size increments need to become. For large sails, the gap can be up to 1.5 sqm, while for very small sails it can go down to 0.3 sqm.

Taking all of this into account a typical quiver for our 75 kg guy could look as following:
7.3 - 6.0 - 5.3 - 4.7 - 4.2 - 3.7

Taking the “10 kg = 1 sqm” rule (see previous point) in consideration a typical quiver for an 85 kg guy could then be:
8.3 - 7.0 - 6.0 - 5-0 - 4.5 - 4.0

Why not blindly rig according to the specs printed on the sail?

You have bought all parts from the same brand but if you rig according to the specs printed on the sail it still feels somehow ackward.
Unfortunately every product has tolerances in production. And the bigger a product becomes the bigger the tolerances become. Therefore tolerances on a smartphone are hardly visible whereas tolerances on Windsurf equipment are non-deniable.
- The tolerances on the mast length are approx. +-5 mm.
- The tolerances on mast extensions and booms are approx. +-3 mm.
Furthermore, there is unfortunately still no standard among brands on how to measure the length of booms and extensions.
- On a sail with all its panels the tolerances over the whole luff length can add up to another +-5-10 mm.
In addition, even with monofilm sails the luff stretches in the first 3 times you use the sail due to the massive downhaul tension.
Adding up all these tolerances you start realising why the absolute numbers printed on your sail (especially the luff length) can only be an indication to adjust your mast extension- and boom lengths.

To achieve the correct downhaul tension please make sure to only rely on the VTS (Visual Trim System) markers in the top of every DUOTONE sail.
Always keep in mind there are exactly 2 things either of them potentially killing at least 30% of your sails performance:
1. The wrong mast (see first point under MAST BASICS on every mast page)
2. Wrong/insufficient downhaul tension

Sail Care
  1. Always rig according to the rigging instructions - see here.
     
  2. After use in salt water, rinse or spray down with fresh water. At the very least at the end of a vacation or trip.
     
  3. When possible only roll up the sail once it has dried. Never store a rolled up sail for any extended periods of time unless it is dry.
     
  4. To dry, release the tension from the sail; if possible do not set out to dry in direct sunlight, and do not dry it by letting it flutter in the wind.
     
  5. Always roll the sail from top or bottom, keeping all battens under full tension in their sleeves!
     
  6. Use only recommended mast components for your sail in order to attain optimum performance.
     
  7. Do not wash your sail with harsh detergents or chemicals. Water and a mild soap are fine.
     
  8. Repair tears and holes in monofilm sails immediately to prevent further tearing. If proper repair is impossible (and this includes using the DUOTONE monofilm repair kit), at least seal the tear with normal tape or a sticker.
     
  9. The sails durability is directly related to
    a. the frequency of use
    b. sail care and
    c. UV-radiation (especially in monofilm sails)
    In places with high UV-radiation, store the sail in the shade, otherwise de-rig it.

360° VIEW

WARP 20.20

GALLERY

WARP 20.20

Duotone Windsurfing Sails 2020 Warp 20.20

We do listen

Be part of the Duotone development

Wanna improve future products?

DO YOU HAVE ANY INPUT OR IDEAS ON HOW TO IMPROVE OUR PRODUCTS?
SHARE YOUR THOUGHTS WITH US!

We strive to create products that are superior in performance and function to anything else on the market. Therefore, we are not just interested in the opinion and experience of professional riders, but listen to ALL windsurfers out there. Because we know we can learn from everyone, we want to collect the opinions of windsurfers worldwide.

This project runs throughout the whole year. Every year on January 15th, the best ideas will be rewarded and might actually be implemented into future products.

So, you have got an idea? Contact us >HERE<  and take your chance to make a difference. (Please use "R&D input for DTW" as a subject line)

REWARDS

1st - One sail (free of choice)

2nd - One Silver Boom (free of choice)

3rd -  One Power.XT 2.0 (free of choice)

Wanna improve future products?

disqus the new WARP 20.20

Comments or questions? Here you get first hand rider feedback.

The more info you can provide the more specific the advice/help will be. Let us know:
- your skill level
- your body weight, maybe even size
- mast(s) you plan using with the sail
- board(s) you are using 
- conditions/spots you are sailing at