Foiling is a beast of a sport and has exploded recently across all foil activities, wake, kite, SUP, and surf. While all have a margin of cross-over with optimal sizes of wings, masts, fuselages, and boards, wake foils are unique with their relatively low boat speed and small wave size. In addition to being difficult to ride, foiling is confusing and information and education regarding wake foils is vague for both staff and customers. In this article we’ll give you the low-down on all you need to know and walk you through the ins and outs of this complicated but rewarding tow sport!
HOW DO YOU WANT TO USE IT?
On a lake or river, where most of our customers will spend their time, foils can be used in several scenarios. When choosing a new foil, you should consider what goal you have and what you will use the foil for:
- Dock starts (Pumping on flat water and hijacking wakes)
- Surfing big wakes (Wakeboard boat)
- Surfing small wakes (Ski boat or 2nd and 3rd wake back)
FRONT WINGS:
Perhaps the most defining feature of any foil is the shape and design of the front wing. These differ greatly across all foiling activities and are the result of a combination of the following ingredients: Speed, stability, rider weight and preference. The surface area of the front wing is a good indication of lift the wing will create all else equal and is commonly measured as the projected surface area in square centimetres. Aspect ratios are something you’ll hear a lot of when discussing any foil activity and immediately categorises a front wing into two main categories:
- LOW/MID ASPECT: A short to medium wingspan with a deeper depth outline creates a foil that will soar with balance and reliability. Low/mid aspect wings are slower through the water but are manoeuvrable for carving and suit riders of all ability levels.
- HIGH ASPECT: A longer wingspan with a narrower depth outline creates a foil that will soar with minimal push or effort. High aspect wings have little to no drag but are less manoeuvrable for carving. They are best suited to intermediate and advanced riders doing dock starts, hijacking wakes and surfing small boat wakes.
FRONT WING SIZING:
Choosing a front wing size depends on the style of wing itself, what it is being used for and the weight of the riders using it. A foil needs to generate enough lift to overcome a rider’s weight at speeds determined by if you’re surfing behind a boat or pumping flat water.
- Wake boat wakes will suit smaller front wings
- Ski boat wakes will suit larger front wings
- Riders over 95+ kg should always consider larger front wings
- Consider a 1600+ sqcm high aspect front wing for dock starts
MAST LENGTH:
The mast is the long structure made of aluminium of carbon fibre that is the link between the board and the foil itself. The mast size is important as it balances the kind of foiling you can do with how stable the overall package is.
- ADJUSTBLE MASTS: A short mast will mean a rider is closer to the water resulting in more gentle falls and will dramatically improve stability as the leverage distance is decreased. Adjustable mast accommodates lengths of between 35 and 50cm making them the best choice for riders new to the sport. Adjustable masts are commonly made of aluminium.
- FIXED MASTS: Most fixed masts range between 60 and 85cm and are made from either aluminium or carbon fibre. Longer masts will give you more clearance which allows for steeper turns without the rails touch the water, more leverage, slower pumping motions and less chances of the foil breaching the water’s surface. Longer masts of 70 – 85cm are best suited to intermediate and advanced riders who want maximum flexibility and range of movement for foiling applications behind large wake boats and pumping open water. Longer masts are very difficult for beginners to learn on. We recommend starting with a shorter mast and upgrading in the future.
REAR STABILIZERS:
The rear stabilizer is designed to complement the front wing and provides a balance of stability and performance based on the foil’s application. Rear stabilizers are like front wings with the same concepts applying: High aspect wings are most efficient, low aspect wings are easier to control and curved up or down wing tips provide directional stability and reduce turbulence. Some foil kits include shims to increase or decrease the amount of lift without changing the size of the stabilizer itself.
FUSELAGE LENGTH:
The length of the fuselage balances response and stability and is most often pre-determined in a foil kit based on the design of the front wing. A longer fuselage makes it easier to control the pitch, while a shorter fuselage makes rider inputs more sensitive but allows for tighter turns and quicker pumping motions.
FOIL CONSTRUCTION:
Foil construction is an important consideration for performance and longevity. As construction quality improves, flex decreases offering a rigid, responsive, and lively feel through the water. Most front wings and rear stabilizers are made using moulded carbon fibre with foam cores which strikes a balance between performance and cost. A foil made of 100% carbon fibre are generally lighter than those with foam cores and have a more lively feel all else being equal but are significantly more expensive to make. There are differences in grades of carbon fibre so not all carbons are equal.
Masts and fuselages are commonly made of anodized aircraft aluminium which are less expensive and heavier compared to carbon fibre but are still relatively strong and rigid. Aluminium corrodes in salt water so be sure to regularly disassemble your foil and provide maintenance.
FOIL BOARDS:
Foil boards are unique amongst water sports as their volume, length, bottom shape, rails, strap compatibility, and construction will all influence how the foil board performs stopped in the water, in displacement mode, on plane, and in the air. In general, beginners will benefit from larger, more stable boards with most riders decreasing in board length as they progress through the sport. Wake foil boards are unique amongst foil activities as we often start with the board already under our feet. The board needs to be buoyant enough to give us feel and control, whilst not being too buoyancy that it makes it difficult to keep under our feet. In contrast to every other water sport, a foil board needs to release as quickly off the water surface as possible allowing the mast to get back to the correct height again. If the board sticks to the surface of the water, speed is lost, and lift reduced.
- UNIVERSAL FOIL MOUNTING SYSTEM: Most foil companies use an industry standard 9cm foil track so nearly every modern foil connects to nearly every modern board. While most foils are sold as packages, it is possible to purchase boards or foils separately.
- FOIL BOARD SIZE GUIDE:
- 4’0” - 4’5 (Up to 90 kg)
- 4’6 – 4’8 (75+ kg)
Slingshot 2023 SG WF-2 V5 with Hover Glide FCarve V1 Foil Kit
Description
WF-2 BOARD: As the trend in foiling continues to move towards shorter boards, we redesigned the WF-2 soft-top foilboard to pack the same amount of surface area into a shorter board length. At 4'6" the WF-2 is an excellent choice for all levels of foilers, has foot strap inserts, and is the best traditional wakesurfing shape we've ever produced for those interested in removing the foil for traditional surf sessions. The board features an aggressive nose rocker designed to increase forgiveness when touching back down to the surface in the early stages of foil progression, and the shorter length allows advanced foilers to pump more aggressively without concern of unintentional contact with the water. The WF-2 is designed to fit the largest range of skill levels from beginner to expert, the WF-2 is the ultimate crossover board between wakesurfing and foilsurfing.
HOVER GLIDE FCARVE V1 FOIL: The FCARVE foil was built to deliver high aspect foil performance to the Hover Glide platform. The 72cm mast height places your wings in the heart of the power source behind boats, and the Quantum 85cm wing glides the farthest with the least effort. The FCARVE foil will allow advanced foilers to go virtually anywhere behind the boat with full confidence. This foil flies at impressively low speeds and requires little effort to sustain flight without a power source, allowing you to pick a wave near or far and get to it with complete confidence.
Specifications
• Adjustable Track Mount: This allows you to slide your foil forward and aft on your board to fine tune how it feels and performs based on your size, ability and personal preference.
• Inline Footstrap Inserts: Simple inline inserts allow for the addition of half straps or full footstraps based on rider preference.
• Full Soft Top Corduroy EVA: Super-soft EVA features a corduroy texture covering the entire surface of the board - providing tons of grip, protection, comfort, and stance options for a variety of riders.
• FCS II FIN BOXES: For those interested in the multi-functionality of the WF-2 V4, Twin FCS II fin boxes allow for the quick addition/subtraction of surf fins for traditional wave-riding sessions.
• Nose Rocker: When learning to foil you will experience quick rises—and even quicker crashes. The nose rocker on the WF-2 V4 will help absorb that impact and direct you back onto foil.
HOVER GLIDE FCARVE V1 FOIL:
• Surface Area (cm2) = 1476
• Span (cm) = 85
• Chord (mm) = 211
• Aspect Ratio = 5.0
• Neoprene Wing Covers and Travel Case
• Safe-T Winglets
• Carbon Composite Wing Construction
• Quick Connect Pedestal Base
• Package Includes: 72cm (28”) mast, Quantum 85cm front wing, 42cm rear wing, hardware, shim, neoprene wing covers, custom travel case
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