Art.-No. 14220-1217
F_PACE CAM - MAXIMUM FOIL PERFORMANCE AND WIND RANGE COMBINED WITH USER-FRIENDLY HANDLING AND ROTATION!
Reduced head area increases stability and control as it reduces the movement of the upper sail to correspond to the lower drag of the foil
REDUCED LOOSE LEECH TO CORRESPOND TO THE LOWER DRAG OF THE FOIL
Crashes while foiling can be tough - therefore we use XPly for all exposed parts of the sail (foot, clew, top)
The super short boom greatly improves the handling while the extended foot batten avoids the sail becoming twitchy/unstable when flying
Completely new and technically superior: the camber revolution with adjustable length - for optimised rotation and increased performance
Best of both worlds:
- same rigging speed and rotation like a no-cam sail
- same optimized air-flow like a camber inducer
SIMILAR TO THE S_PACE THE BRAND-NEW F_PACE CAM IS DIRECTLY DERIVED FROM OUR WARP RACING PROGRAM. IT CARRIES THE RACING GENES OF OUR PWA WORLD CHAMPION SAIL WARP_FOIL FOR MAXIMUM PERFORMANCE, BUT AT THE SAME TIME THE HANDLING IS EXCEPTIONALLY EASY FOR THIS CLASS.
Compared to traditional fin sailing you have approximately 70% less drag on the foil. We were the first brand to understand that it requires a totally different sail design (profile, twist pattern, aspect ratio) to match the low-drag hydrofoils.
The most important factor for performance foil sails is the balance between control and performance/speed over a maximum wind range combined with effortless handling.
Compared to the regular F_PACE the F_PACE CAM features an additional 6th batten and 2 HYPER CAM 2.0 + 2 SLEEVE INDUCERS. In addition the F_PACE CAM is designed around SDM masts. All this leads to a much more performance oriented behavior over a huge wind range.
The high aspect outline with reduced top surface corresponds perfectly with the low water resistance of the hydrofoil and the almost non-existent lateral forces. With less movement in the top, the rig remains stable over the board, for maximum control yet very reactive. The foot closes perfectly with the deck and allows for extreme angles against the wind with the extended foot batten – yet thanks to the extremely concave outline without any negative influence to the handling!
All sizes are now equipped with an XPly top panel. The slightly more elastic XPly improves control in high winds and keeps the leech stable.
Another major improvement to enhance control is the reduced profile at batten 6 which shifts the main power to the center.
In our eyes, the F_PACE CAM redefines the benchmark of control : performance : wind-range ratio. And all of this combined with effortless handling and super smooth rotation so that even intermediate riders can choose the F_PACE CAM.
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.
| 4.2 | 4.9 | 5.6 | 6.3 | 7.0 | 7.8 |
| 152 | 160 | 164 | 180 | 194 | 204 |
| Min +1 >< Max +3 | Min +1 >< Max +3 | Min +1 >< Max +3 | Min +1 >< Max +3 | Min +1 >< Max +3 | Min +1 >< Max +3 |
| 382 | 410 | 434 | 460 | 490 | 502 |
| FIX | FIX | FIX | FIX | FIX | FIX |
| 6 | 6 | 6 | 6 | 6 | 6 |
| 2 + 2 SLEEVE INDUCER | 2 + 2 SLEEVE INDUCER | 2 + 2 SLEEVE INDUCER | 2 + 2 SLEEVE INDUCER | 2 + 2 SLEEVE INDUCER | 2 + 2 SLEEVE INDUCER |
| 3.80 | 4.00 | 4.30 | 4.60 | 4.90 | 5.20 |
| PLATINUM / -- | PLATINUM / -- | PLATINUM / -- | PLATINUM / GOLD>SILVER | PLATINUM / GOLD>SILVER | PLATINUM / GOLD>SILVER |
| SDM/-- | SDM/-- | SDM/-- | SDM/-- | SDM/-- | SDM/-- |
| 380/-- | 380/-- | 400/-- | 430/-- | 460/-- | 460/-- |
HYPER CAM 2.0Optimum 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 SDM mast diameters (for any kind of carbon-content or even different brands) 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.
X.PLY PLUSWhat would you prefer? Maximum puncture resistance and UV weathering resistance with minimal stretch? Or (theoretically) improved ripstop properties?
We went with option A and developed the most durable laminate on the market. Because the factors of puncture resistance, durability and stretch evidently depend only on the thickness of the film used, we use only 150 or 100 micron thick films for our exclusive XPLY PLUS. In an extensive series of tests, we have developed the ideal combination of necessary film thickness and number of threads. The X.PLY PLUS in particular, at 150 microns in thickness, boasts durability characteristics far in excess of previous laminates at minimal weight. This is also acknowledged by all the big surfing centres and rental equipment providers around the world, who place their trust in the unbeatable quality and longevity of our sails.
3D TOP CAPOptimised 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.
Double Seam TechnologyDouble 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.
2+3 Year WarrantyGuaranteed quality – no other brand offers anything close to it.
Keeping weight to a minimum is a great idea. But if necessary reinforcements are reduced too much, the product’s service life will automatically get shorter. DUOTONE has struck the perfect balance between weight and durability. To prove our dedication to ensuring durability and unique quality, almost all of our sails come with a 2+3 year warranty (excluding monofilm). To secure warranty claims fully, please remember to register at www.duotonesports.com straight after your purchase. Otherwise, only statutory warranty claims will be accepted. This is valid only for original owners.
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.
HTS 2.0 HARNESSLINE TRIM SYSTEMNever 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.
INDIVIDUAL BOOM LENGTH INDICATIONThe 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.
iRocket 2.0Super-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.
Mast Sleeve OpenerFrictionless 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.
Mini BattenThese prevent unwanted leech flutter.
Short and highly effective mini-battens which provide support for the areas between the battens and prevent undesirable flutter.
Polyester Webbing OnlyEliminating 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 BattenOptimum 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.
SUPER-LIGHT BUMPERThe lightest protector on the market, with integrated trim indicator.
VTS VISUAL TRIM SYSTEM 2.0Perfect 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.
TWIN STRAPThis keeps the sail rolled up and holds the protector to the mast. A brilliantly simple fastening system which keeps the sail compact and closed after being rolled up and, when on the water, holds the mast protector closely to the mast.
TT TopImproved 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.
TACK ROLLER 2.0During the development of the TACK ROLLER 2.0 we've measured the downhaul forces on all kind of sails. We've found out these interesting facts:
1. When downhauling a cambered slalom sail the forces necessary are nearly 3 times as high as when downhauling a no-cam (wave) sail (160 kg vs. 60kg)
2. With a 6:1 power-ratio you need to pull twice as much rope-length as with a 4:1 ratio. Therefore, with a 4:1 ratio you can downhaul the sail in one go, whereas with a 6:1 ratio you always need to retighten the rope.
3. Threading the rope through all rollers (without the rope getting crossed) takes at least 4 times as long as just looping the rope.
4. In theory with a 6:1 power-ratio the downhaul forces should only be half as high compared to a 4:1 ratio. In real life though the friction loss at each roller reduces the downhaul tension by only 15% at most (wave sail: 57 kg vs. 60 kg / slalom camber sail: 135 kg vs. 160 kg).
Therefore, we've designed 2 versions of the TACK ROLLER 2.0:
>> NOCAM Version used on all no-cam sails
The massive comfort and speed advantages of the 4:1 ratio (Loop-Loop-Go) outweigh the very slightly reduced downhaul forces of the 6:1 ratio.
This version features 2 nickel plated brass rollers at the outside plus a center spacer featuring a bigger diameter. This ensures that the rope loop automatically slips into the 2 outside rollers.
>> CAM Version used on all cambered sails
The downhaul forces are so massive that even a small reduction helps.
The 3rd slightly bigger roller allows to either use the 4:1 (Loop-Loop) or the 6:1 (Thread-Through) option.
X.PLY PLUSWhat would you prefer? Maximum puncture resistance and UV weathering resistance with minimal stretch? Or (theoretically) improved ripstop properties?
We went with option A and developed the most durable laminate on the market. Because the factors of puncture resistance, durability and stretch evidently depend only on the thickness of the film used, we use only 150 or 100 micron thick films for our exclusive XPLY PLUS. In an extensive series of tests, we have developed the ideal combination of necessary film thickness and number of threads. The X.PLY PLUS in particular, at 150 microns in thickness, boasts durability characteristics far in excess of previous laminates at minimal weight. This is also acknowledged by all the big surfing centres and rental equipment providers around the world, who place their trust in the unbeatable quality and longevity of our sails.
X.PLY PLUSWhat would you prefer? Maximum puncture resistance and UV weathering resistance with minimal stretch? Or (theoretically) improved ripstop properties?
We went with option A and developed the most durable laminate on the market. Because the factors of puncture resistance, durability and stretch evidently depend only on the thickness of the film used, we use only 150 or 100 micron thick films for our exclusive XPLY PLUS. In an extensive series of tests, we have developed the ideal combination of necessary film thickness and number of threads. The X.PLY PLUS in particular, at 150 microns in thickness, boasts durability characteristics far in excess of previous laminates at minimal weight. This is also acknowledged by all the big surfing centres and rental equipment providers around the world, who place their trust in the unbeatable quality and longevity of our sails.
Polyester Webbing OnlyEliminating 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.
HYPER CAM 2.0Optimum 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 SDM mast diameters (for any kind of carbon-content or even different brands) 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.
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:
Our motto is clear: light is right but only if it doesn't go to costs of durability.
Our hardware products (booms, masts and extensions) are proven to be the lightest in the industry.
With our sails though we are not the lightest on the market (with the exception of the Super Hero M.Plus). The major reason for this is that we are using (much) thicker XPly laminates than some other brands.
The factors of puncture resistance, UV weathering resistance and stretch evidently depend ONLY on the thickness of the film used.
Puncture resistance and stretch have a linear relation to the thickness of the film. Means twice the thickness results in twice the strength against punctures with half the stretch.
Even more critical is UV resistance since here the relation to the thickness is overproportional. Means half the thickness reduces the UV-longevity by nearly 70%!
Some brands use XPly laminates which are 2/3rd thinner than ours in the upper sail area. Yes in the top you have less puncture issues and you can even get away with the increased strech. Unfortunately though the UV-exposure is the same all over the entire sail.
That's one of the reasons why the majority of Windsurf centres around the globe trust in DUOTONE products.
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.
TO SECURE THE EXTENDED CLAIMS PLEASE REGISTER WITHIN 30 DAYS.
OTHERWISE JUST THE LEGAL WARRANTY PERIOD CAN BE GRANTED!
At DUOTONE we use a Medium Constant Curve for our masts (our bend percentages range between 61-63 bottom and 75-77 top depending on model and length). As this curve sits right in the middle within Constant Curve masts it offers the biggest compatibility of any bend curve. This makes our masts and sails the most compatible on the market.
HERE IS HOW GOOD OTHER BRAND MASTS WORK WITH OUR SAILS AND VICE VERSA:
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
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.
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.
Max. sail size vs. body weight:
The larger the sail, the heavier and the more “sluggish” the rig becomes. In addition, larger sails require stiffer masts to keep the surface "in shape". A heavy rider provides more "counter-pressure" to the sail area and mast stiffness than a lightweight. That's why the sail tends to pull you out of balance, gets difficult to control during maneuvers and becomes inefficient to pump when it is too large for your body weight.
In relation to your body weight, there is a maximum sail size that should not be exceeded.
Here are some guidelines:
>> 9.0+: min. body weight 95kg
>> 8.0-8.3: min. body weight 80kg
>> 7.0-7.3: min. body weight 70kg
As a general rule rather use a slightly too small than a too big sail.
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
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
There are 2 things which will destroy up to 60% of your sails' performance:
1. A wrong mast with a bend-curve which doesn't match with the luff curve of your sail
2. A wrong timmed sail
For how to rig and fine-tune your sail please see our YouTube channel.
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)
1st - One sail (free of choice)
2nd - One Silver Boom (free of choice)
3rd - One Power.XT 2.0 (free of choice)
The more info you provide, the more specific the advice/help will be. Please let us know:
Please note: to help as many people as possible to follow the thread the forum language is English only
ATTENTION: since the mast geometry and length (= stiffness) depend on the sail design, size and luff curve the sails will NOT work with any masts outside the recommendations!