F-One SK8 HM Carbon (T2) SK8 HM CARBON 650 hydrofoil front wing: 650 cm², 725 mm span, aspect ratio 8.10, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from F-One'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 |
|---|---|---|---|---|---|---|---|
| Takoon | Flare Front Wing 650 | 650 | +0.0% | 8.30 | +2.5% | 720 | C2 Mid-low aspect |
| Sabfoil | Blackbird Razor 737 Blackbird Razor 737 | 648 | -0.3% | 8.40 | +3.7% | 737 | C2 Mid-low aspect |
| Unifoil | Aggression 105 Aggression 105 | 677 | +4.2% | 8.10 | +0.0% | 740 | C2 Mid-low aspect |
| KT Foiling | Halo 670 Halo 670 | 670 | +3.1% | 8.00 | -1.2% | 725 | C2 Mid-low aspect |
| GONG | Ypra Surf Carve V3 Atmo S | 620 | -4.6% | 8.20 | +1.2% | 710 | C2 Mid-low aspect |
| Slingshot | One-Lock Glide 625 | 625 | -3.8% | 8.40 | +3.7% | 724 | C2 Mid-low aspect |
| GONG | Ypra Freestyle V3 M | 680 | +4.6% | 7.80 | -3.7% | 730 | C2 Mid-low aspect |
| GONG | Curve H V3 FG XXS | 620 | -4.6% | 8.40 | +3.7% | 720 | C2 Mid-low aspect |
| Sabfoil | 707 Balz Muller Limited 707 Balz Müller Limited | 661 | +1.7% | 7.55 | -6.8% | 707 | C2 Mid-low aspect |
| Sroka | S-Foil 670 S HA 670 S HA | 670 | +3.1% | 7.50 | -7.4% | 700 | C2 Mid-low aspect |
| Levitaz | Front Wing FS 680 FS 680 | 680 | +4.6% | 8.70 | +7.4% | 770 | C3 Mid aspect |
| Family | SK8 |
|---|---|
| Size | SK8 HM CARBON 650 |
| Area, cm² | 650 |
| Area basis | unknown |
| Span, mm | 725 |
| Chord, mm | — |
| Aspect ratio | 8.10 |
| Band | C2 Mid-low aspect |
| Brand files it under | Surf / carve |
| Disciplines | prone, wing, kite, sup |
| Construction | HM carbon |
| 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 F-One 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.