Foil windsurfing — also called wind foiling — is the fastest-growing discipline in the sport. By mounting a hydrofoil beneath a specially designed board, riders lift completely out of the water and glide above the surface with almost zero drag. The sensation is often described as flying, and once you experience it, regular windsurfing feels like driving with the handbrake on.
How a Hydrofoil Works
A windsurf hydrofoil consists of four key components: the mast (a vertical strut, typically 60-90 cm), the fuselage (a horizontal bar connecting front and rear wings), the front wing (the main lifting surface), and the stabilizer (a smaller rear wing that controls pitch). As the board accelerates, water flows over the front wing and generates lift — the same principle that keeps an airplane airborne. Once enough speed is reached (usually 8-12 knots of board speed), the lift overcomes gravity and the board rises out of the water. At this point, the only thing touching the water is the foil itself, which dramatically reduces drag and allows you to sail faster with less wind.
Equipment You Need
To start wind foiling, you need three things beyond your existing sail and mast:
- Foil board: Shorter and more compact than a standard windsurf board, with a reinforced foil box (deep tuttle or plate system). The Windcraft Foil Ready 120L is an excellent starting point — stable enough to learn on, yet performance-oriented enough to grow with you.
- Foil set: The hydrofoil assembly itself — mast, fuselage, front wing, and stabilizer. Beginners should choose a larger front wing (1500-2000 cm²) for early lift-off and stability. As you progress, smaller wings offer more speed and maneuverability.
- Sail: You can foil with a standard freeride sail, but dedicated foil sails are lighter and deliver smoother, more progressive power. Sizes between 5.5-7.5 m² cover most conditions for an average-weight rider.
The Learning Curve
If you can already windsurf comfortably — sailing in footstraps and using a harness — you have a significant head start. Most competent windsurfers can get up on the foil within 3-5 sessions. The biggest challenge is not speed or power but balance: the board reacts to tiny weight shifts when flying, and overcorrection leads to breaching (the foil breaking the surface) or crashing. Start in light wind (8-12 knots), flat water, and with a large front wing. Patience is key.
Minimum Wind Requirements
This is perhaps the biggest advantage of foiling: you need far less wind. While traditional windsurfing typically requires 12-15 knots minimum for planing, foiling is possible in as little as 8-10 knots. This means you can sail on days when everyone else is stuck on the beach. In many regions, foiling doubles or triples the number of usable sailing days per year.
Safety Considerations
Hydrofoils have sharp edges and are moving at speed beneath the water. Falls can be more consequential than on a regular board. Always wear a helmet and impact vest when learning. Avoid crowded areas — you need space to crash safely. Use a leash so the board does not fly away from you. And never foil in shallow water where the mast could strike the bottom and catapult you forward.
Why Foiling Is the Future
The Olympic windsurfing class has already transitioned to foiling (the iQFoil replaced the RS:X). Major brands are investing heavily in foil R&D, and the technology is improving rapidly — lighter, stiffer, more affordable. For recreational sailors, foiling means more time on the water, a completely new sensation of flight, and a skill ceiling that will keep you progressing for years. It is not a replacement for traditional windsurfing — it is an incredible addition to it.
Ready to fly? Explore the Windcraft foil range and start your wind foiling journey with equipment designed for real-world progression.