
BLADE PRO_PREMIUM CONTROL
The Blade has defined the 5-batten wave sail category for over 20 years. The 025 edition continues to upgrade and polish this proven performer.
Delivering dependable performance across the widest possible wind range, the Blade offers the perfect blend of power and control.
Both Blade and BladePro are developed on an identical platform. The PRO construction offers the ultimate experience while the Blade replicates the dynamic performance in a more accessible construction.
Built using CarbonFusion, the Blade feels dynamic and electric in the hands and elevates the game on all levels. This construction pushes the boundaries of modern wave sail design. It’s no wonder that riders such as Philp Köster choose the BladePro.
Both constructions use GRADIENT PANEL TECHNOLOGY to logically reduce weight, increase strength, and control stretch. Direct transmission of power. Increased longevity.
The Blade features quality materials including VX2, SpiderFibre, and eM4. The BladePro is crafted in CARBON FUSION.
Total Control. The Blade is the control-oriented wave sail for any conditions.
/ 5 BATTEN DESIGN
/ 100% X-PLY
/ DEVELOPED WITH SCOTT MCKERCHER AND PHILIP KOSTER
SIZES: 3.0 / 3.3 / 3.5 / 3.7 / 4.0 / 4.2 / 4.5 / 4.7 / 5.0 / 5.3 / 5.5 / 5.7 / 6.2 / 6.7

BLADE PRO_PREMIUM CONTROL
The Blade has defined the 5-batten wave sail category for over 20 years. The 025 edition continues to upgrade and polish this proven performer.
Delivering dependable performance across the widest possible wind range, the Blade offers the perfect blend of power and control.
Both Blade and BladePro are developed on an identical platform. The PRO construction offers the ultimate experience while the Blade replicates the dynamic performance in a more accessible construction.
Built using CarbonFusion, the Blade feels dynamic and electric in the hands and elevates the game on all levels. This construction pushes the boundaries of modern wave sail design. It’s no wonder that riders such as Philp Köster choose the BladePro.
Both constructions use GRADIENT PANEL TECHNOLOGY to logically reduce weight, increase strength, and control stretch. Direct transmission of power. Increased longevity.
The Blade features quality materials including VX2, SpiderFibre, and eM4. The BladePro is crafted in CARBON FUSION.
Total Control. The Blade is the control-oriented wave sail for any conditions.
/ 5 BATTEN DESIGN
/ 100% X-PLY
/ DEVELOPED WITH SCOTT MCKERCHER AND PHILIP KOSTER
SIZES: 3.0 / 3.3 / 3.5 / 3.7 / 4.0 / 4.2 / 4.5 / 4.7 / 5.0 / 5.3 / 5.5 / 5.7 / 6.2 / 6.7

025 Blade Pro | Luff | Boom | Battens | Weight | Head | Mast | Enigma Boom | Boom | Extension | |
---|---|---|---|---|---|---|---|---|---|---|
3.0 | 344 | 140 | 5 | TBC | ADJ 11CM | RDM BLUE 340 | RDM | Enigma 140 | METAL 140 | Cyclops 24 |
3.3 | 341 | 141 | 5 | TBC | FIXED | RDM BLUE 340 | RDM | Enigma 140 | METAL 140 | Cyclops 24 |
3.5 | 352 | 146 | 5 | TBC | FIXED | RDM BLUE 340 | RDM | Enigma 140 | METAL 140 | Cyclops 24 |
3.7 | 369 | 148 | 5 | 2.44 | FIXED | RDM BLUE 340 | RDM | Enigma 140 | METAL 140 | Cyclops 36 |
4.0 | 376 | 150 | 5 | 2.55 | FIXED | RDM RED 370 | RDM | Enigma 140 | METAL 140 | Cyclops 24 |
4.2 | 385 | 154 | 5 | 2.62 | FIXED | RDM RED 370 | RDM | Enigma 140 | METAL 140 | Cyclops 24 |
4.5 | 404 | 157 | 5 | 2.75 | FIXED | RDM RED 370 | RDM | Enigma 140 | METAL 140 | Cyclops 36 |
4.7 | 406 | 160 | 5 | 2.81 | FIXED | RDM RED 400 | RDM | Enigma 150 | METAL 150 | Cyclops 24 |
5.0 | 414 | 164 | 5 | 2.94 | FIXED | RDM RED 400 | RDM | Enigma 150 | METAL 150 | Cyclops 24 |
5.3 | 423 | 168 | 5 | 3.06 | FIXED | RDM RED 400 | RDM | Enigma 150 | METAL 150 | Cyclops 24 |
5.5 | 429 | 170 | 5 | TBC | FIXED | RDM RED 400 | RDM | Enigma 150 | METAL 150 | Cyclops 36 |
5.7 | 433 | 171 | 5 | 3.22 | FIXED | RDM RED 430 | RDM | Enigma 150 | METAL 150 | Cyclops 24 |
6.2 | 455 | 174 | 5 | TBC | FIXED | RDM RED 430 | RDM | Enigma 150 | METAL 150 | Cyclops 36 |
6.7 | 462 | 183 | 5 | TBC | FIXED | RDM RED 430 | RDM | Enigma 150 | METAL 150 | Cyclops 24 |
TECHNOLOGY



GRADIENT PANEL TECHNOLOGY
The Blade Pro uses the new GRADIENT PANEL TECHNOLOGY. Corners have overlapped panels which reduces the amount of patching. At the same time these overlapped areas extend into the body of the sail so it transitions the load much better, will be less stretch over time. It’s a more stable way of building sails.
Rather than a single curved luff panel, the Blade Pro uses separate panels that radiate out of the head and tack corners. This perfectly aligns the sail material with the direction of load. Previously the curved panel would have bias stretch in all the wrong places. Direct transmission of power. Increased longevity. Total Control.


AERO BATTEN TECHNOLOGY
In our quest to create a truly symmetrical sail we have developed the AERO BATTEN POCKET. Rather than add the batten pocket on one side of the sail, the panels of the sail are overlapped to create a channel for the batten. The tensioner is then loaded from both sides of the sail creating even tension across both sides of the foil.
The result is improved sail symmetry and reduced weight.


CARBON FUSION TECHNOLOGY
PRECISE. ALIVE. ELECTRIC
Our search for higher performance has brought us CarbonFusion, the next level in load-path sail construction.
Carbon Fusion sails are composed of 3 key components;
/ MATERIAL
/ FUSED SEAMS
/ LOAD PATH FRAME
The result of these 3 key components effectively turns the sail into a spring. Load it up, and release for explosive performance.
CARBON FUSION
PRECISE. ALIVE. ELECTRIC
Our search for higher performance has brought us CarbonFusion, the next level in load-path sail construction.
Carbon Fusion sails are composed of 3 key componants;
/ MATERIAL
/ FUSED SEAMS
/ LOAD PATH FRAME
The result of these 3 key components effectively turns the sail into a spring. Load it up, and release for explosive performance.

MATERIAL
UNIDIRECTIONAL CARBON FIBRE + OFF AXIS DYNEEMA.
Unidirectional Carbon is aligned to all primary load paths and eliminates any stretch. Off axis Dyneema enables horizontal elasticity, allowing the sail to flex and react with lightning speed. Superior fibres deliver superior performance;
/ DYNAMIC: Carbon warp with no stretch combined with medium stretch 45∞ Dyneema.
/ STRONGER: Dyneema is one of the strongest fibres available.
/ LIGHTER: Carbon has the highest strength to weight ratio.
MATERIAL
UNIDIRECTIONAL CARBON FIBRE + OFF AXIS DYNEEMA.
Unidirectional Carbon is aligned to all primary load paths and eliminates any stretch. Off axis Dyneema enables horizontal elasticity, allowing the sail to flex and react with lightning speed. Superior fibres deliver superior performance;
/ DYNAMIC: Carbon warp with no stretch combined with medium stretch 45∞ Dyneema.
/ STRONGER: Dyneema is one of the strongest fibres available.
/ LIGHTER: Carbon has the highest strength to weight ratio.


FUSED SEAMS
ULTRASONICALLY WELDED SEAMS.
Each carbon segment is ultrasonically welded in place. This has multiple advantages over traditional sewing techniques;
/ STRONGER: Full seam adhesion plus the benefit of not puncturing the films with needle holes.
/ LIGHTER: Removal of outer seam tapes and thread.
/ ACCURATE: No seam shrinkage from outer tapes, or thread tension.
FUSED SEAMS
ULTRASONICALLY WELDED SEAMS.
Each carbon segment is ultrasonically welded in place. This has multiple advantages over traditional sewing techniques;
/ STRONGER: Full seam adhesion plus the benefit of not puncturing the films with needle holes.
/ LIGHTER: Removal of outer seam tapes and thread.
/ ACCURATE: No seam shrinkage from outer tapes, or thread tension.


LOAD PATH FRAME
PANEL LAYOUT ALIGNED TO LOAD PATHS.
Each panel is strategically placed to align with the sails specific loads, on all sizes.
This has multiple advantages over aesthetic panel layouts;
/ LIGHTER: Aligning fibre accurately with the loads in the sail allows thinner films and much lighter sails.
/ STRONGER: High density of Dyneema and carbon in specific areas.
/ LIGHTNING RESPONSE: Carbon fibre transfers load instantly, without lag due to stretch.
1. PRIMARY LOADS
Primary loads run vertically between head and tack. Downhaul tension transfers directly through the warp oriented carbon.
2. FOOT LOADS.
Foot tensions transfer between the tack and the clew. High density fibreadds impact strength in this area.
3. LEECH LOADS
Leech loads run vertically up the leech, with dynamic loads tensioning the carbon and then springing back for explosive performance.
4. BODY LOADS
Body tension is transferred out of the head and clew.
LOAD PATH FRAME
PANEL LAYOUT ALIGNED TO LOAD PATHS.
Each panel is strategically placed to align with the sails specific loads, on all sizes.
This has multiple advantages over aesthetic panel layouts;
/ LIGHTER: Aligning fibre accurately with the loads in the sail allows thinner films and much lighter sails.
/ STRONGER: High density of Dyneema and carbon in specific areas.
/ LIGHTNING RESPONSE: Carbon fibre transfers load instantly, without lag due to stretch.
1. PRIMARY LOADS
Primary loads run vertically between head and tack. Downhaul tension transfers directly through the warp oriented carbon.
2. FOOT LOADS.
Foot tensions transfer between the tack and the clew. High density fibreadds impact strength in this area.
3. LEECH LOADS
Leech loads run vertically up the leech, with dynamic loads tensioning the carbon and then springing back for explosive performance.
4. BODY LOADS
Body tension is transferred out of the head and clew.

GRADIENT PANEL TECHNOLOGY
With the new GRADIENT PANEL TECHNOLOGY improvements are obvious. Lighter weight and better stability.
Using the new GRADIENT PANEL TECHNOLOGY. Corners have overlapped panels which reduces the amount of patching. At the same time these overlapped areas extend into the body of the sail so it transitions the load much better, will be less stretch over time. It’s a more stable way of building sails.
The GRADIENT PANEL TECHNOLOGY logically reduces weight, increases strength and controls stretch. Overall weight is reduced but the more significant improvement is the feel – quicker reacting and lighter feel.
Rather than a single curved luff panel, we use separate panels – split luff – that radiate out of the head and tack corners. This perfectly aligns the sail material with the direction of load.
Previously the curved panel would have bias stretch in all the wrong places. Direct transmission of power. Increased longevity.

RECOMMENDED
/ BOARD
PYRO
NANO
PROJECT SCOTT
/ MAST
RDM RED – For ultimate performance.
RDM BLUE – High-end performance with increased reliability.
BLADE PRO is recommended for RDM masts.
/ BOOM
ENIGMA – For ultimate performance.
/ EXTENSION
CYCLOPS
COMPARISON
/ S-I PRO
The BLADE PRO has 5 battens.
The BLADE PRO drives power down through the board for maximum control.
/ BLADE
The BLADE PRO features CarbonFusion technology.
The BLADE PRO is lighter.
What changed from 024 to 025 Blade Pro?
025 Blade Pro sails are constructed using CarbonFusion, and no longer make use of HyperSpider membrane technology.
You can read more about CarbonFusion by clicking this link.
What is the difference between the Blade and the Blade Pro?
The key difference between the Blade and Blade Pro is the material, as well as, the construction.
Blade Pro is the only sail that is built using carbon fibre laminates from head to tack. Carbon is a higher-performance fibre than the Technora, Kevlar, or polyester used in all other sails.
Better strength-to-weight ratios, more reactive, wider wind ranges.
The Blade Pro features Carbon Fusion
The Blade Pro uses carbon fibre laminate from head to tack
The Blade Pro is more reactive
The Blade Pro features a better strenght to weight ratios
Can I rig the Blade Pro on a SDM mast?
No, the Blade Pro is designed for RDM masts.
WHAT IS THE DIFFERENCE BETWEEN THE BLADE/BLADE PRO AND S-1?
The S-1 is a manouvrable oriented sail, meaning it has more backhand drive, allowing you to effortlessly change lines during your turns, wave 360, or aerial setup.
The Blade is kept neutral in the front of the sail to give a lot more control when riding or jumping.
The S-1 has 4 battens.
The S-1 is more manoeuvre oriented.
The S-1 has more backhand pressure.
The BLADE has 5 battens
The BLADE is more control oriented.
The BLADE is more stable.
The BLADE is full X-PLY
WHAT IS THE DIFFERENCE BETWEEN THE BLADE/BLADE PRO AND GATOR?
The Blade/Blade Pro is wave orientated whereas the Gator is a freewave/freeride oriented crossover sail.
The Blade/Blade Pro is specifically designed for the windsurfers who spend most of their time in the waves. A neutral sail that helps to improve riding and jumping.
The Gator will be your best match if you enjoy bump and jump conditions, occasionally riding some waves. Offering a softer, easier handling, the Gator will have you planning earlier than anyone else.
The Gator is freewave/freeride oriented.
The Gator planes earlier.
The Gator has five battens up to 7.0 and six battens from 7.5 and up.
The Blade is more wave oriented.
The Blade is more stable.
The Blade is more manoeuvreable.
The Blade is less freemove/freeride oriented
IS IT POSSIBLE TO GET CARBONFUSION AND OTHER REPAIR MATERIALS?
Yes, you can order repair material from your local dealer or distributor.
Use the dealer locator to find your nearest SEVERNE dealer.
HOW DO I RIG MY BLADE/BLADE PRO?
Check out our rigging guides section: https://www.severnesails.com/product-care/rigging-guides/
Can I rig the Blade Pro on a non-Severne mast?
All of our development, testing, rigging, and tuning are done using SEVERNE masts.
We strongly recommend our customers use SEVERNE masts. Our masts are designed with a specific SEVERNE bend curve that remains one of the pillars of our rigs.
We don’t test the performance or bend curves of other masts, and can thus not guarantee which performance or durability you can get out of your sail using a different brand mast.
We describe the curve of our mast as a SEVERNE curve.
The constant, hardtop, or flex top curves that generic mast brands describe base themselves on measurements on 3 points.
We measure our masts at 7 points minimum.