F-One SK8 HM Carbon (T2) SK8 HM CARBON 850 hydrofoil front wing: 850 cm², 825 mm span, aspect ratio 8.00, 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 |
|---|---|---|---|---|---|---|---|
| Cabrinha | Whippit 850 | 850 | +0.0% | 8.10 | +1.2% | 830 | C2 Mid-low aspect |
| Unifoil | Aggression 130 Aggression 130 | 838 | -1.4% | 8.10 | +1.2% | 825 | C2 Mid-low aspect |
| Takoon | Flare Front Wing 850 | 850 | +0.0% | 8.30 | +3.8% | 840 | C2 Mid-low aspect |
| Armstrong | MA Mk II (Mid Aspect) MA890 | 890 | +4.7% | 8.00 | +0.0% | 860 | C2 Mid-low aspect |
| Sroka | S-Foil 810 S HA 810 S HA | 810 | -4.7% | 7.90 | -1.2% | 780 | C2 Mid-low aspect |
| GONG | Ypra Surf Carve V3 Atmo L | 820 | -3.5% | 8.20 | +2.5% | 820 | C2 Mid-low aspect |
| Code Foils | X Series Front Wing 810X | 810 | -4.7% | 8.20 | +2.5% | 814 | C2 Mid-low aspect |
| Code Foils | X Series Front Wing 890X | 890 | +4.7% | 8.20 | +2.5% | 852 | C2 Mid-low aspect |
| ENSIS | INFINITY ACE Front Wing 840 | 840 | -1.2% | 7.50 | -6.2% | 795 | C2 Mid-low aspect |
| GONG | Curve H V3 FG S | 820 | -3.5% | 8.40 | +5.0% | 830 | C2 Mid-low aspect |
| GONG | Fluid H V3 FG S | 810 | -4.7% | 8.40 | +5.0% | 820 | C2 Mid-low aspect |
| Takoon | XS-Glide Front Wing 820 | 820 | -3.5% | 7.50 | -6.2% | 786 | C2 Mid-low aspect |
| Family | SK8 |
|---|---|
| Size | SK8 HM CARBON 850 |
| Area, cm² | 850 |
| Area basis | unknown |
| Span, mm | 825 |
| Chord, mm | — |
| Aspect ratio | 8.00 |
| 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.