GONG Ypra Slalom V3 Atmo XS hydrofoil front wing: 600 cm², 730 mm span, aspect ratio 8.90, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from GONG'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 |
|---|---|---|---|---|---|---|---|
| Naish | Siren MA Front Wing Siren 600 | 600 | +0.0% | 8.50 | -4.5% | 714 | C2 Mid-low aspect |
| Lift Foils | 92 Havoc Front Wing 92 | 594 | -1.0% | 8.50 | -4.5% | 711 | C2 Mid-low aspect |
| Axis | Surge Surge 740 | 590 | -1.7% | 9.30 | +4.5% | 740 | C3 Mid aspect |
| Code Foils | S Series Front Wing 615S | 615 | +2.5% | 9.50 | +6.7% | 765 | C3 Mid aspect |
| Slingshot | One-Lock Glide 625 | 625 | +4.2% | 8.40 | -5.6% | 724 | C2 Mid-low aspect |
| Family | Ypra |
|---|---|
| Size | XS |
| Area, cm² | 600 |
| Area basis | unknown |
| Span, mm | 730 |
| Chord, mm | 116 |
| Aspect ratio | 8.90 |
| Band | C3 Mid aspect |
| Brand files it under | Race / freerace |
| Disciplines | wing, kite, race |
| Construction | Pro Team / 3K Texalium clear carbon prepreg |
| Model year | 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 GONG 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.