Armstrong A+ System Mast

The Armstrong A+ System Mast is a carbon foil mast built around Armstrong's proprietary A+ mounting system, which uses a carbon-wrapped titanium core running through the fuselage with a hexagonal connection point. Now in its V2 iteration, the mast is offered in six lengths — 45 cm, 60 cm, 72 cm, 85 cm, and 100 cm — with the 85 cm size also available in a Tuttle box configuration. Armstrong developed the mast construction in conjunction with composite engineers who worked on Team New Zealand's America's Cup foils, and the result is a fully tapered, one-piece carbon mast designed for use across wing foiling, prone foil surfing, SUP foiling, downwind, kite foiling, wake foiling, and tow-in applications.

The A+ System's defining feature is its fixing arrangement: vertical barrel nuts with M6 bolts through the front wing and horizontal bolts through the fuselage create opposing fixing points that compress slack at the hexagonal mount. Self-locating titanium washers spread load across the carbon and can be flipped 180 degrees to shift the foil's position in the track box. All hardware is titanium or 316L stainless steel with Torx heads, and a protective mast cover is included.

• Construction: Intermediate and high-modulus carbon fiber with a quad C beam core and 100% carbon cloth outer shell
• Design: Fully tapered one-piece layup
• Hardware: Bidirectional titanium washers, titanium T-nuts, M6 Torx bolts in titanium and 316L stainless steel
• 45 cm weight: 1,050 g
• 72 cm weight: 1,350 g
• 100 cm weight: 1,900 g
• Available lengths: 45 cm, 60 cm, 72 cm, 85 cm (plate or Tuttle), 100 cm
• Included: Mast cover, full hardware set, T30 Torx tool

The range of lengths maps to a wide spread of rider profiles. The 45 cm mast suits beginners and shallow-water riding where minimal height reduces the learning curve and crash impact. The 72 cm length is positioned as a dedicated foil-surf mast, keeping the rider close to the wave face. The 85 cm is Armstrong's versatile middle option, long enough for wing foiling, SUP foiling, downwind runs, and kite foiling without the added drag and leverage of a taller mast. The 100 cm targets experienced riders in kite foiling, tow-in surfing, and open-ocean conditions where extra clearance above chop matters.

Because the A+ System is backward compatible with earlier Armstrong fuselages and wings, the mast works as an upgrade path for riders already invested in the Armstrong ecosystem. The quad C beam core is tuned to deliver consistent flex through chop rather than a rigid, feedback-heavy ride, which favors all-round comfort over outright stiffness.

Within Armstrong's current mast catalog, the A+ System Mast sits between the entry-level Alloy System masts — offered in aluminum at a lower price point — and the Performance Carbon masts, which use higher-grade Toray carbon fiber for reduced weight and increased stiffness at a premium. Armstrong also offers Foil Drive Integrated masts for riders running electric assist setups, and separate Mk II Carbon masts in the Performance and Performance-X tiers. The A+ System Mast is essentially the brand's core carbon mast: capable across disciplines without the weight penalty of alloy or the cost of the Performance line. Riders comparing across brands will find it positioned similarly to other mid-range carbon masts from manufacturers like Axis and Uni Foil, though direct comparison depends on fuselage and wing compatibility within each brand's ecosystem.