Duotone Crest D/LAB 800 hydrofoil front wing: 800 cm², 850 mm span, aspect ratio 9.00, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Duotone'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 Slalom V3 Atmo M | 800 | +0.0% | 8.90 | -1.1% | 840 | C3 Mid aspect |
| North | Sonar SF830 SF830 | 830 | +3.8% | 9.00 | +0.0% | 865 | C3 Mid aspect |
| Sabfoil | Blackbird Razor 847 Blackbird Razor 847 | 784 | -2.0% | 9.20 | +2.2% | 847 | C3 Mid aspect |
| GONG | Fluid V3 Atmo S | 810 | +1.2% | 8.70 | -3.3% | 840 | C3 Mid aspect |
| KT Foiling | Nomad 830 Nomad 830 | 830 | +3.8% | 8.90 | -1.1% | 860 | C3 Mid aspect |
| Slingshot | One-Lock Glide 825 | 825 | +3.1% | 8.80 | -2.2% | 850 | C3 Mid aspect |
| Naish | Siren MA Front Wing Siren 800 | 800 | +0.0% | 8.41 | -6.6% | 820 | C2 Mid-low aspect |
| F-One | EAGLE HM Carbon EAGLE 790 | 790 | -1.2% | 9.50 | +5.6% | 865 | C3 Mid aspect |
| GONG | Fluid H V3 FG S | 810 | +1.2% | 8.40 | -6.7% | 820 | C2 Mid-low aspect |
| Sabfoil | Blackbird 805 Balz Muller Signature Blackbird 805 | 792 | -1.0% | 8.30 | -7.8% | 805 | C2 Mid-low aspect |
| GONG | Curve H V3 FG S | 820 | +2.5% | 8.40 | -6.7% | 830 | C2 Mid-low aspect |
| Axis | Surge Surge 890 | 835 | +4.4% | 9.50 | +5.6% | 890 | C3 Mid aspect |
| Takoon | Flash Front Wing 770 | 770 | -3.8% | 9.70 | +7.8% | 864 | C4 High aspect |
| Family | Crest |
|---|---|
| Size | 800 |
| Area, cm² | 800 |
| Area basis | unknown |
| Span, mm | 850 |
| Chord, mm | — |
| Aspect ratio | 9.00 |
| Band | C3 Mid aspect |
| Brand files it under | Surf / carve |
| Disciplines | wing, prone, tow |
| Construction | D/LAB |
| 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 Duotone 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.