Armstrong Alloy System Step One Foil Kit
Armstrong Alloy System Step One Foil Kit
Armstrong Alloy System Step One Foil Kit
Armstrong Alloy System Step One Foil Kit
Armstrong Alloy System Step One Foil Kit
Armstrong Alloy System Step One Foil Kit
Armstrong Alloy System Step One Foil Kit
Armstrong Alloy System Step One Foil Kit

Armstrong Alloy System Step One Foil Kit

Regular price$1,839.00
Tax included.


This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Armstrong step foils at Stonker in Torquay


All kits come with alloy 72cm mast, Alloy 75cm Fuselage, S1 300 stabiliser plus Kit bag. 

Redefining how we learn to foil, the Step 1 (S1) foil range delivers remarkable stability, ultra low flying speed and an instantly intuitive feel to make the first step into foiling as accessible and forgiving as possible. Pitch, roll and yaw stability are critical to success when building foiling skills.

The S1 design achieves a near autopilot-like level of predictability thanks to a combination of leading and trailing edge sweep, chord length and foil section geometry. The result is an ultra easy platform for first time flyers to learn any foiling discipline.

The S1 foils fly at a remarkably low speed with a high degree of controllability so that riders can practice manoeuvres with less risk and a lower learning curve. When overpowered, the foil reduces breaching with a tendency to fly itself back down when approaching the surface.

And because these foils handle speed and ventilation so well, riders can enjoy an exceptionally broad usable speed range in each size. Downturned wingtips provide an extra element of safety. Built to the same tolerances as all other Armstrong foils, the S1 range is constructed from carbon composites which provide an excellent strength to weight ratio.

  • An ultra easy platform for first time flyers to learn any foiling discipline. Excellent low speed lift, stability and recovery from ventilation.
  • Leading and trailing edge sweep for stability and a narrower span to minimise breaching.
  • Downturned wing tips increase rider safety and improve the efficiency of water flow.
  • Proprietary Armstrong A+ System foil connection design offers industry-leading stiffness, durability and modularity.
  • An S1 300 stabiliser designed alongside the S1 foils to provide riders with the best learning platform possible.

Tech specs

  • 1250cm2: Span 848mm, Aspect Ratio 5.7
  • 1550cm2: Span 905mm, Aspect Ratio 5.3
  • 1850cm2: Span 965mm, Aspect Ratio 5.0
  • 2450cm2: Span 1054mm, Aspect Ratio 4.8
  • 300cm2 stabiliser: Span 410mm, Aspect Ratio 5.7

More about the Armstrong Alloy System

The Armstrong Alloy System was designed to enable riders of all skill levels to chase endless experiences on the water. Its modularity, broad performance range and exceptional build quality empowers riders of all levels to progress without limits.
Modularity is core to the Alloy System design.
It’s fully compatible with all our front foils and stabilisers so as riders’ style evolves, so can their setup. Building on the knowledge and technology that led to our industry-leading carbon Performance Mast, the AA mast shape and structure are optimised from top to bottom for an excellent balance of efficiency and strength.
This approach to design and attention to detail is exemplified in the Alloy System’s specially machined mast top and Sail GP-inspired bottom bracket that are crafted from aerospace-grade aluminium alloys.
The system is outfitted exclusively with premium titanium and surgical stainless hardware for a light and highly corrosion resistant setup that’s durable over time. Industry-leading manufacturing tolerances make for a high performance, beautiful fit and finish overall.


  • Hexagonal fuselage shape is inherently strong, stiff and modular for an easy front foil swap.
  • The mast section is 17.5mm thick; efficient through the water, yet strong to withstand the loads of
  • advanced riding.
  • Aircraft-grade 6061 and 7075 alloys for excellent strength to weight ratio.
  • Titanium and stainless hardware save having to disassemble frequently so it’s easy to use and maintain
  • with excellent corrosion resistance. Screws are custom-made M7 and M8 x 1.25.
  • Tech Specs:
  • 85cm (33.5”), 72cm (28.5”), 58cm (22.5”) mast lengths
  • 75cm, 65cm fuselage lengths



    Great service re the purchase of a Red Original change robe. Thanks Ben and Jess 👍

    Stonker Google Review

    I love my swim robe - perfect for walking to and from the beach for an early morning swim on those cold days. It's Wind proof and keeps the car seat dry when used in the car.

    Stonker Google Review

    The team at Stonker is not only hardworking but also lovely. My experience with Jess and Ben was truly exceptional as they possess extensive knowledge about their products. Despite I was interstate, I communicated with them over the phone and received exemplary assistance. I am extremely satisfied with their services and highly recommend Stonker to others. I will certainly be a returning customer in the future.

    Stonker Google Review

    Great friendly customer service, goods arrived promptly, happy customer 😊

    Stonker Google Reviews

    Loved the new CF2050. so forgiving and easy to ride. Super fast to get on foil in light winds. never drops out and hard to breach.
    So much fun !!

    Thanks Stonker team :)

    Stonker Google Review