The area
One of the most important factors in the Foil-Selection is the area.
In general are Foils over 1500 cm² good for beginners suitable. Of course, the choice always depends on many factors such as body weight. This one Foils generate enough lift to lift the board out of the water even at low speeds and at the same time ensure the greatest possible stability.
As your driving skills increase, the desire for a smaller one becomes smaller Foil getting bigger. One smaller area goes along with lower resistance and therefore also with higher speed. Foils However, 1000 – 1500 cm² requires more attention from the surfer. If you master the pumping technique well, you can get into foiling almost as quickly as with the larger alternatives. The higher speed allows you to fly easily through wind holes.
Advanced and experts should also take a look at Foils with less than 1000 cm² throw on surface. They require a high level of driving skill and allow spectacular speeds.
Aspect ratio
Just as important as the surface area is the span and the corresponding profile.
The English term Aspect ratio describes nothing other than that Ratio of span to area. On the whole, "Low-mid aspect" - Foils a thick and deep profile with a large surface area and a small span. They fly steadily and turn easily. In addition they generate a lot of lift and help you take off even at low speeds and with little wind.
The "High Aspect" - Foils are thinner and have a large span. They are highly efficient and glide better through wind holes. You need a little more speed to take off, and they require more feeling when foiling. In return, you achieve a higher final and average speed.
The aspect ratio also influences the curve radius. With the same surface area, an HA-Foil with a radius greater than an LA-Foil.