Armstrong A+ System Pump Foil APF Front Wing

The Armstrong A+ System Pump Foil APF Front Wing is a dedicated pump foiling front wing from Armstrong Foils, designed around flat-water pumping efficiency and low-speed energy conservation. Developed in collaboration with aerospace engineer and tail designer Chris Porter, the APF line prioritizes ultra-low stall speeds and a relaxed pumping cadence over outright top-end speed. The wing uses a nearly straight leading edge paired with a forward-swept trailing edge and wide wingspan to maximize glide, while downturned wingtips reduce induced drag for longer sustained flights. Construction relies on Toray high-modulus and intermediate-modulus carbon fiber, keeping each wing stiff and light. Three sizes — the APF1350, APF1675, and APF1880 — cover a range of rider weights and skill levels within Armstrong's A+ System modular foil platform.

• APF1350 Area: 1350 cm²
• APF1350 Span: 1202 mm
• APF1350 Aspect Ratio: 10.7
• APF1675 Area: 1675 cm²
• APF1675 Span: 1202 mm
• APF1675 Aspect Ratio: 8.6
• APF1880 Area: 1880 cm²
• APF1880 Span: 1302 mm
• APF1880 Aspect Ratio: 9.2
• Construction: Toray high-modulus and intermediate-modulus carbon fiber
• System: Armstrong A+ modular foil platform
• Included: Stainless steel fasteners and protective wing cover

The APF line targets riders focused on flat-water pump foiling and those looking for an accessible entry point into micro-bump downwind runs. The high-camber, relatively thick foil section generates lift at very low speeds, which suits riders who are still building pump fitness and want a forgiving, predictable wing underfoot. Rounded safety wingtips add a measure of protection during falls.

Within the three-size range, Armstrong positions the APF1675 as the core progression wing for riders under 90 kg moving from first flights to longer pump sessions. The APF1880 extends that glide and low-end lift further, serving expert pump foilers under 90 kg who want maximum efficiency or heavier riders (over 90 kg) who are still progressing. The APF1350 sits between the HA1180 high-aspect wing and the APF1675, offering more speed and glide than the larger APF sizes while retaining the line's low-speed takeoff characteristics — a fit for lighter riders advancing in pump foil or transitioning into downwind foiling.

The APF front wings occupy a distinct slot in Armstrong's catalog, sitting alongside the high-aspect HA series and the surf-oriented CF line. Where the HA wings (available from 480 cm² up to 1180 cm²) balance carving performance with efficient pumping across surf, downwind, and wing foiling disciplines, the APF wings trade top-end speed for lower stall speeds and a pumping-specific foil profile. The APF1350 was introduced after the APF1675 and APF1880 to bridge the gap between the HA1180 and the larger pump foil sizes, giving riders a stepping stone from high-aspect all-rounders into dedicated pump foiling hardware.

All three APF wings mount to Armstrong's A+ System fuselage and mast assembly, sharing full compatibility with the brand's stabilizers and Polycarbonate Pro shims for half-degree pitch tuning. Riders already invested in the A+ ecosystem can add an APF front wing without changing any other component. In the broader pump foil market, the APF competes with wings like the Axis Pump Foil series and the F-One Phantom, though its high-camber section and emphasis on low-speed controllability give it a particular identity among flat-water-focused options.