GONG Ypra Surf-Freestyle V3 L hydrofoil front wing: 740 cm², 710 mm span, aspect ratio 6.81, 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 |
|---|---|---|---|---|---|---|---|
| F-One | PHANTOM S Carbon PHANTOM-S 740 | 740 | +0.0% | 6.50 | -4.6% | 695 | C2 Mid-low aspect |
| Lift Foils | 121 Havoc Front Wing 121 | 774 | +4.6% | 7.00 | +2.8% | 737 | C2 Mid-low aspect |
| Axis | Spitfire Spitfire 670 | 721 | -2.6% | 6.34 | -6.9% | 670 | C2 Mid-low aspect |
| Family | Ypra |
|---|---|
| Size | L |
| Area, cm² | 740 |
| Area basis | projected |
| Span, mm | 710 |
| Chord, mm | 145 |
| Aspect ratio | 6.81 |
| Band | C2 Mid-low aspect |
| Brand files it under | Surf / carve |
| Disciplines | wing, kite, prone |
| Construction | Pro Team / Carbon HM |
| Model year | 2025 |
| Source | manufacturer |
The brand's published aspect ratio contradicts its own span and area by more than 10%, so the geometric figure (span² ÷ area) is used instead and the row is filed as a brand data error.
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.