Duotone Amp 2.0 SLS 1550 hydrofoil front wing: 1,550 cm², 1,430 mm span, aspect ratio 13.20, 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 |
|---|---|---|---|---|---|---|---|
| Takoon | Pump Pro Front Wing 1550 | 1,550 | +0.0% | 13.00 | -1.5% | 1,420 | C5 Very high aspect |
| Sabfoil | Leviathan Blackbird 1400 Leviathan Blackbird 1400 | 1,549 | -0.1% | 12.30 | -6.8% | 1,380 | C5 Very high aspect |
| Family | Amp |
|---|---|
| Size | 1550 |
| Area, cm² | 1,550 |
| Area basis | unknown |
| Span, mm | 1,430 |
| Chord, mm | — |
| Aspect ratio | 13.20 |
| Band | C5 Very high aspect |
| Brand files it under | Pump / dock |
| Disciplines | pump |
| Construction | SLS |
| 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.