Armstrong HA (High Aspect) HA580 hydrofoil front wing: 580 cm², 780 mm span, aspect ratio 10.50, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Armstrong's own published specifications.
Projected and flat area run 3–8% apart. A marked area is one whose brand does not state which it publishes, so a match inside the area tolerance may be comparing unlike figures.
| Brand | Wing | Area cm² | Δ area | Aspect ratio | Δ AR | Span mm | Band |
|---|---|---|---|---|---|---|---|
| KT Foiling | Atlas 570 Atlas 570 | 570 | -1.7% | 10.50 | +0.0% | 775 | C4 High aspect |
| GONG | Veloce Free Fly (FF) V3 Atmo XS | 590 | +1.7% | 10.60 | +1.0% | 790 | C4 High aspect |
| Lift Foils | 90 High Aspect Front Wing 90 | 581 | +0.2% | 11.00 | +4.8% | 800 | C4 High aspect |
| Takoon | Flow Front Wing 600 | 600 | +3.4% | 10.70 | +1.9% | 800 | C4 High aspect |
| GONG | Veloce V3 Atmo XS | 590 | +1.7% | 10.10 | -3.8% | 770 | C4 High aspect |
| Axis | ART PRO ART PRO 801 | 582 | +0.3% | 11.17 | +6.4% | 801 | C4 High aspect |
| Naish | Mach-2 Front Wing Mach-2 560 | 560 | -3.4% | 10.04 | -4.4% | 750 | C4 High aspect |
| AFS | Enduro Front Wing Enduro 600 | 600 | +3.4% | 11.00 | +4.8% | 813 | C4 High aspect |
| AFS | Pure Race 560 Pure Race 560 | 560 | -3.4% | 10.00 | -4.8% | 750 | C4 High aspect |
| Slingshot | One-Lock Flow 600 | 600 | +3.4% | 11.00 | +4.8% | 813 | C4 High aspect |
| Family | HA |
|---|---|
| Size | HA580 |
| Area, cm² | 580 |
| Area basis | unknown |
| Span, mm | 780 |
| Chord, mm | — |
| Aspect ratio | 10.50 |
| Band | C4 High aspect |
| Brand files it under | Glide / high aspect |
| Disciplines | prone, wing, downwind |
| Construction | carbon |
| Model year | 2025-2026 |
| Source | manufacturer |
The brand's published aspect ratio agrees with its own span and area (span² ÷ area) to within 5%, so the figure is confirmed.
See Armstrong on the plot →Data current to August 2026. Fast Bobby is the researcher, never the reviewer: every figure above is the manufacturer's published claim, converted to comparable units, and nothing here is a riding impression.