Technical characteristics of the Sroka wings and foil boards

How are Sroka Company products developed?

Our philosophy is to design our products based on your needs. Your specifications are our specifications, with several consequences. The first is that we listen to you, and take your feedback, both positive and negative, into account when developing our products. Secondly, we do not force the rider to adapt to the material. Each of our fins, foil boards or wings answers a need.

We are not here to race for equipment either. All our wings have their strengths, but there is no question of your session becoming a nightmare if all the parameters are not perfectly met: they are therefore, each in their own way, models of versatility and scalability.

Bruno Sroka, triple World Champion and adventurer, tests himslef each product before putting it on the water, and our products are not released until the feel and quality are there. We also make sure to reduce our impact, by offering you products that last and not disposable ones.

You will find in this table the main characteristics of our products in connection with the foil. They can give you a quick overview of the behavior of a foil, a wing or a board. Keep in mind that there is a lot more that goes into the design of a foil, a board or a wing. Rather than comparing them to make the right choice, nothing better than contacting us directly by email, chat or phone, we will put our technical expertise and experience at your disposal with pleasure.

Discover below the details of our foil and board front wings.

Characteristics of the Sroka Company foil wings and stabilizers

MODEL Lifting surface (cm2) Wingspan (cm) Max rope (cm) Maximum profile thickness (cm) Aspect Ratio
2000 Classic 2000 109 25 3 6 (mid)
1750 Classic 1750 98,5 24 3 5,55 (mid)
1500 Classic 1500 88 22,5 3 5,16 (mid)
1250 Classic 1250 81 20,5 3 5,25 (mid)
HA 1190 Speed 1190 91 16,5 2 7 (high)
HA 1190 Lift 1190 91 16,5 2,5 7 (high)
K950 950 74 17 2 5,8 (mid)
W-Foil 1000 1000 86,5 15 2 7,5 (high)
S-Foil standard stab 300 44,5 8,5 1,3 7 (high)
Stab Kite Foil K230 (sold with the K950) 230 38,5 7,7 1 6,4 (mid)
Windfoil stab 230 50 7,5 1 11 (high)

Here is a small and very schematic explanation of these data. Again, this data can be compensated in one way or another by other, finer data, such as tip twist, gull wing shape, dihedral, relative thickness… They are therefore only a quick overview of the behavior of a foil. You can find two foils that have exactly the same characteristics in this table but different behaviors once in the water for many reasons.

The bearing surface:Basically, the larger it is, the more load-bearing your foil is because it displaces more water. It also becomes slower.

The span: It increases the lateral stability It also reduces handling and induced drag.

Rope:A larger rope increases your lift, but decreases your efficiency and speed by disturbing the flow.

The thickness of the profile: a thicker profile carries more but goes slower, because it displaces more water.

Aspect ratio: promotes efficiency, pumping and gliding. For example, after a pumping stroke, you will travel more distance with a high aspect wing than a low aspect wing before falling back down.

 

Characteristics of the Sroka Company foil boards

MODEL Length (feet/cm) Width (inches/cm) Volume (liters) Thickness (inches/cm) Materials and construction Box Bare board weight (+/-7,5%)
Sky Rider 6’3 6’3/19

29’’/74

120

4.7’’/12

Fiberglass or carbon and epoxy protection layer – full sandwich

Double rail US

Fiber : 8,7Kg

Carbon : 7,8Kg

Sky Rider 5’8

5’8/177

28”/71 105

4.7’’/12

Fiberglass or carbon and epoxy protection layer – full sandwich Double rail US

Fibre : 7,7Kg

Carbone : 7Kg

Sky Rider 5’5

5’5/165

27’’5/70

90

4.7’’/12

Fiberglass or carbon and epoxy protection layer – full sandwich Double rail US

Fibre : 6,9Kg

Carbone : 6,4kg

Sky Rider 5’2

5’3/161,5

26’’/66

77

4.1’’/10,5

Fiberglass or carbon and epoxy protection layer – full sandwich

Double rail US

Fibre : 6,2Kg

Carbone : 6Kg

Air 6’4

6’4/195

29’’/74

155

6’’/15

Double layer PVC – carbon plate

Double rail US

8Kg

Air 6′

6’0/183

28’’/71

144

6’’/15

Double layer PVC – carbon plate

Double rail US

7,8Kg

Air 5’3

5’3/152

29’’/74

115

6’’/15

Double layer PVC – carbon plate

Double rail US

7Kg

Fast Flyer 4’6

4’6/140

21’’5/55

40 Full sandwich fiberglass and epoxy protection layer Double rail US 3,5Kg

buy Wingfoil Pack