Armstrong HA (High Aspect) HA480 hydrofoil front wing: 480 cm², 726 mm span, aspect ratio 11.00, 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 |
|---|---|---|---|---|---|---|---|
| GONG | Ypra Race Micro V3 Atmo 480 cm² | 480 | +0.0% | 10.40 | -5.5% | 707 | C4 High aspect |
| Family | HA |
|---|---|
| Size | HA480 |
| Area, cm² | 480 |
| Area basis | unknown |
| Span, mm | 726 |
| Chord, mm | — |
| Aspect ratio | 11.00 |
| 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.