Duotone Blitz D/LAB 550 hydrofoil front wing: 550 cm², 680 mm span, aspect ratio 8.60, 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 |
|---|---|---|---|---|---|---|---|
| Sabfoil | Razor PRO 675 Razor PRO 675 | 550 | +0.0% | 8.40 | -2.3% | 680 | C2 Mid-low aspect |
| Sroka | S-Foil 550 S HA 550 S HA | 550 | +0.0% | 8.30 | -3.5% | 678 | C2 Mid-low aspect |
| Takoon | Flare Front Wing 550 | 550 | +0.0% | 8.30 | -3.5% | 660 | C2 Mid-low aspect |
| Sabfoil | Blade 700 Blade 700 | 552 | +0.4% | 8.90 | +3.5% | 700 | C3 Mid aspect |
| Levitaz | Front Wing FS 540 FS 540 | 540 | -1.8% | 8.40 | -2.3% | 670 | C2 Mid-low aspect |
| F-One | SK8 HM Carbon (T2) SK8 HM CARBON 550 | 550 | +0.0% | 8.20 | -4.7% | 670 | C2 Mid-low aspect |
| Sabfoil | Medusa PRO 669 Medusa PRO 669 | 548 | -0.4% | 8.14 | -5.3% | 669 | C2 Mid-low aspect |
| Axis | ART (AXIS Research Team) ART 699 | 556 | +1.1% | 9.00 | +4.7% | 699 | C3 Mid aspect |
| Sabfoil | Blackbird 700 Blade Blackbird 700 Blade | 557 | +1.3% | 9.05 | +5.2% | 700 | C3 Mid aspect |
| KT Foiling | Halo 550 Halo 550 | 550 | +0.0% | 8.00 | -7.0% | 665 | C2 Mid-low aspect |
| RRD | Thunder Front Wing Y30 550 | 550 | +0.0% | 8.00 | -7.0% | 660 | C2 Mid-low aspect |
| Family | Blitz |
|---|---|
| Size | 550 |
| Area, cm² | 550 |
| Area basis | unknown |
| Span, mm | 680 |
| Chord, mm | — |
| Aspect ratio | 8.60 |
| Band | C3 Mid aspect |
| Brand files it under | Race / freerace |
| Disciplines | wing, race |
| Construction | D/LAB |
| Model year | 2025 |
| 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.