GONG Ypra Surf Fast V3 Atmo XL hydrofoil front wing: 920 cm², 870 mm span, aspect ratio 8.20, 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 |
|---|---|---|---|---|---|---|---|
| KT Foiling | Instinct 920 Instinct 920 | 920 | +0.0% | 8.41 | +2.6% | 880 | C2 Mid-low aspect |
| Code Foils | X Series Front Wing 890X | 890 | -3.3% | 8.20 | +0.0% | 852 | C2 Mid-low aspect |
| AFS | Evo Front Wing 950 | 950 | +3.3% | 8.10 | -1.2% | 880 | C2 Mid-low aspect |
| Takoon | Flare Front Wing 950 | 950 | +3.3% | 8.30 | +1.2% | 890 | C2 Mid-low aspect |
| Armstrong | MA Mk II (Mid Aspect) MA890 | 890 | -3.3% | 8.00 | -2.4% | 860 | C2 Mid-low aspect |
| F-One | SK8 HM Carbon (T2) SK8 HM CARBON 950 | 950 | +3.3% | 8.00 | -2.4% | 870 | C2 Mid-low aspect |
| KT Foiling | Halo 950 Halo 950 | 950 | +3.3% | 8.00 | -2.4% | 870 | C2 Mid-low aspect |
| Takuma | Kujira II Front Wing Kujira II 950 | 950 | +3.3% | 8.00 | -2.4% | 870 | C2 Mid-low aspect |
| Sroka | S-Foil 950 S HA 950 S HA | 950 | +3.3% | 7.90 | -3.7% | 850 | C2 Mid-low aspect |
| Slingshot | One-Lock Glide 925 | 925 | +0.5% | 8.80 | +7.3% | 899 | C3 Mid aspect |
| Takoon | XS-Glide Front Wing 940 | 940 | +2.2% | 7.70 | -6.1% | 852 | C2 Mid-low aspect |
| North | Sonar SF930 SF930 | 930 | +1.1% | 8.80 | +7.3% | 900 | C3 Mid aspect |
| RRD | Thunder Front Wing Y30 950 | 950 | +3.3% | 7.60 | -7.3% | 850 | C2 Mid-low aspect |
| Family | Ypra |
|---|---|
| Size | XL |
| Area, cm² | 920 |
| Area basis | unknown |
| Span, mm | 870 |
| Chord, mm | 141 |
| Aspect ratio | 8.20 |
| Band | C2 Mid-low aspect |
| Brand files it under | Surf / carve |
| Disciplines | prone, wing, sup |
| 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.