Armstrong A+ System Tail Wing

The Armstrong A+ System Tail Wing is a rear stabilizer designed to pair with Armstrong's A+ foil platform across wing foiling, surf foiling, prone foiling, downwind, and dock-start pump foiling disciplines. Armstrong offers this stabilizer line in eleven distinct models, each shaped for a specific riding style and performance envelope. All models attach directly to the A+ System TC fuselage without adapters or shims for most riders, though optional polycarbonate pro shims are included for fine-tuning pitch angle in half-degree increments. Construction across the range uses a foam core wrapped in carbon fiber with titanium screw inserts to resist corrosion.

• S1 300: 300 cm² area, 410 mm span, 5.7 aspect ratio
• Flow 235: 235 cm² area, 386 mm span, 6.4 aspect ratio
• Pump 202: 202 cm² area, high-aspect straight leading-edge outline
• Glide 220: 220 cm² area, 462 mm span, 9.7 aspect ratio
• Surf 205: 205 cm² area, 344 mm span, 5.9 aspect ratio
• Speed 180: 180 cm² area, 400 mm span, 9.0 aspect ratio
• Dart 140: 140 cm² area, 348 mm span, 8.7 aspect ratio
• Dart 120: 120 cm² area, 300 mm span, 7.3 aspect ratio
• Surf MKII: available in 130, 170, and 200 cm² sizes
• Construction: Foam core with carbon fiber wrap, titanium screw inserts
• Included: Protective cover, 2x Torx M6 316L stainless steel screws, 3x polycarbonate pro shims

The breadth of this tail wing lineup means there is a stabilizer for nearly every skill level and condition. The S1 300 sits at the entry end with a large 300 cm² platform and low aspect ratio of 5.7, providing high pitch stability for riders on their first flights and those building intermediate skills. Its gull-wing rondure helps keep the stabilizer submerged near the surface, reducing the chance of ventilation during learning phases.

Moving through the range, the Flow 235 covers a wide middle ground as a versatile all-rounder with consistent pitch stability and a moderate 6.4 aspect ratio suited to riders progressing through multiple disciplines. The Glide 220, with its high 9.7 aspect ratio and 462 mm span, targets intermediate-to-advanced riders chasing long-distance glide in light-wind winging and flatwater pumping. The Pump 202 is purpose-built for dock-start pump foiling alongside the Armstrong APF front wings, prioritizing low stall speeds and gliding efficiency. The Surf 205 and Surf MKII models cater to surf-oriented riders seeking tight, responsive turns in the pocket, while the Speed 180 and Dart 140/120 push into high-performance territory with progressively lower drag and faster response for advanced riders in powered conditions.

Within Armstrong's foil ecosystem, this stabilizer collection replaces the earlier generation that included the CF300 V2, HS232 V2, and Flying V 200. Those older models used a similar A+ mounting interface but featured different planforms and foil sections. The current range is more granular, spanning from 120 cm² to 300 cm² across eleven options rather than the previous handful, giving riders a more precise match to their front wing and riding style.

The S1 300 pairs specifically with Armstrong's S1 front wings for a dedicated beginner setup, while the Surf MKII models were developed alongside the MA Mk II front foils. Riders cross-shopping stabilizers from other brands might compare to options like the Axis Skinny Tail series or Uni Tail Wings, though Armstrong's shim-less direct-mount A+ connection is proprietary and limits cross-brand compatibility.