After a huge success in 2018, AlpineFoil is very proud to present its brand new Windfoil A1 2019. For this new season, the fuselage has been completely renewed. Thanks to extensive research in the field of hydrodynamics and many tests, the windfoil A1 Carbon promises riders a pure and uncompromising ride. From development to manufacturing, the A1 has been entirely thought out according to windfoil practice and the constraints it implies. After eleven years of experience in the field of hydrofoil and four long years of research devoted to the windfoil A1 project, the result is of rare quality. The smallest element of the foil, from the material to the geometry, has been scrupulously studied in order to obtain a product optimized to 200%.
Choosing a Windfoil Carbon AlpineFoil is to make no concessions on its pleasure. The main innovation is based on the very low drag of the whole made possible thanks to the thinnest fuselage of the market coupled with the FRDS system, technology developed and patented by AlpineFoil. This technology allows both a high level of rigidity and an exceptional flow. New in 2019:
•Lengthened by 7 cm, it now reaches a length of 1 meter, which gives it exceptional longitudinal stability and an incredible lift to the wind.
•To obtain a foolproof solidity, the fuselage has been strongly stiffened, but that does not affect its excellent flow.
•Finally, the calibration has been modified to obtain more progressivity, but also a glide of much better quality.
The carbon elements are combined with an aluminum fuselage because this material allows a reduction of the fuselage section of 40% compared to a carbon section while offering an excellent reliability thanks to its strong resistance. The foil is also ultra thin and light, while being particularly rigid: a considerable work of reduction of weight was carried out according to the Material Resistance to arrive at a ratio stiffness / thinness out of the common run. The carbon / aluminum union and this extreme thinness make the A1 Carbon a unique windfoil on the market. The other highlights of the A1 CARBON
•Unique durability in the foil world
•Incredibly stable curved ULW900 wing
•Excellent performance at low speed
•95 cm mast with progressive profile, ideal at sea
•Stable and responsive mast •100 cm ultra stable fuselage •Evolutivity to wings 800, 700, 600, 500, 400 and 300 cm²
•Mast, wings and full carbon RTeam stabilizer, ultra sophisticated finish
•Optional full carbon platinum of distribution of efforts
•Fully removable foil, ideal for transport
•Particularly reliable foil
The AlpineFoil carbon mast, a must-have. The main asset of windfoil A1 Carbon is its full carbon RTeam mast. The choice to offer a mast in true carbon fiber continues to demonstrate the desire of AlpineFoil to transmit extraordinary sensations to its customers. To achieve superior rigidity, the carbon fiber layers are laid out in a precise orientation that meets all our flexion and torsion requirements and is then fired at very high pressure, ensuring ultra-compact carbon and therefore unequaled strength and resistance.
So that this supreme rigidity does not affect the quality of the glide, AlpineFoil has designed a mast whose profile is progressive. Each area of the mast has been carefully studied according to the constraints, there is strictly no superfluous. Thus, the upper part of the mast is thicker, because it represents a significant area of stress concentration, while the lower part is much thinner, to greatly reduce drag and thus optimize the glide to the maximum. The rigidity is so impeccable while the glide remains absolutely sensational.
The size of this 100% windfoil mast is also extremely important. Results of a laborious calculation, the 95 cm of length are perfect for navigation at sea. An excellent upwind, a very good amplitude of maneuver, progressive takeoff and piloting: this mast greatly facilitates the practice of windfoil in marine environment. Added to this is a primary advantage: a perfect balance between stability and responsiveness. Indeed, a mast too short would be unstable because the lever exerted on the sail would have been too weak, while a longer mast would be too much nervous and therefore much more difficult to handle. Here, the research conducted has generated a product that responds perfectly to the slightest solicitation of the pilot. Then, the mast rope was also evaluated at the fairest. Its size is not too wide, to avoid the saffron effect that makes the foil difficult to handle and increases the drag, not too fine, to maintain a certain stability. These precise dimensions greatly contribute to improving the upwind ascent, but also, combined with a suitable profile, to optimize the rigidity in flexion and torsion of the mast to 100%.
The mast of the windfoil A1 Carbon is entirely realized by the RTeam division, our team of technicians ultra specialized in the work of carbon and in the manufacture of upscale and competition foils. Thanks to it, the profile of the mast, particularly precise, is always perfectly respected: the leading edge is well marked while the trailing edge is extremely fine. This AlpineFoil system allows excellent flow, and therefore a great reduction of the drag, which gives you an unparalleled level of glide.
This high-end mast then benefits from an ultra-refined finishing process. Instead of just sanding at the exit of the mold, AlpineFoil, with a taste for excellence, prefers to push the finishing to its climax. Indeed, at AlpineFoil, we know that carbon fiber, because of its crossings, has a multitude of small porosities that affect the flow of water on the profile, and therefore the glide. We then decided to solve this problem by applying several layers of varnish between which an operator carries out a sanding. With this process, we always return to the original profile, but the porosities are gradually filled. The masts with gloss option, unlike the matte versions, have an additional treatment. After the last coat of varnish, we execute a manual sanding with water in 2000 and 3000. A final polishing in 16,000 is then operated using a polishing paste. This high performance finish on the one hand refines the design of the product, and on the other hand greatly improves its glide.