Sabfoil Blackbird Razor 847 Blackbird Razor 847 hydrofoil front wing: 784 cm², 847 mm span, aspect ratio 9.20, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Sabfoil'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 | EAGLE HM Carbon EAGLE 790 | 790 | +0.8% | 9.50 | +3.3% | 865 | C3 Mid aspect |
| Duotone | Crest D/LAB 800 | 800 | +2.0% | 9.00 | -2.2% | 850 | C3 Mid aspect |
| GONG | Ypra Slalom V3 Atmo M | 800 | +2.0% | 8.90 | -3.3% | 840 | C3 Mid aspect |
| AFS | Silk V2 Front Wing Silk 750 | 750 | -4.3% | 9.00 | -2.2% | 821 | C3 Mid aspect |
| Takoon | Flash Front Wing 770 | 770 | -1.8% | 9.70 | +5.4% | 864 | C4 High aspect |
| RRD | Flying Fish Front Wing Y30 750 | 750 | -4.3% | 9.50 | +3.3% | 840 | C3 Mid aspect |
| Armstrong | HA (High Aspect) HA780 | 780 | -0.5% | 9.86 | +7.2% | 877 | C4 High aspect |
| GONG | Fluid V3 Atmo S | 810 | +3.3% | 8.70 | -5.4% | 840 | C3 Mid aspect |
| Cabrinha | Fusion H-Series MkII H800 | 800 | +2.0% | 9.90 | +7.6% | 900 | C4 High aspect |
| Family | Razor Blackbird |
|---|---|
| Size | Blackbird Razor 847 |
| Area, cm² | 784 |
| Area basis | unknown |
| Span, mm | 847 |
| Chord, mm | 115 |
| Aspect ratio | 9.20 |
| Band | C3 Mid aspect |
| Brand files it under | Glide / high aspect |
| Disciplines | wing, prone, downwind |
| Construction | full carbon monobloc |
| Model year | 2025-2026 |
| 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 Sabfoil 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.