Duotone Aero Free SLS 800: a legacy wing, no longer in Duotone's current range. 800 cm², 780 mm span, aspect ratio 7.20. The current wings that match it within ±5% area and ±8% aspect ratio, 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 |
|---|---|---|---|---|---|---|---|
| Lift Foils | 121 Havoc Front Wing 121 | 774 | -3.2% | 7.00 | -2.8% | 737 | C2 Mid-low aspect |
| Takoon | XS-Glide Front Wing 820 | 820 | +2.5% | 7.50 | +4.2% | 786 | C2 Mid-low aspect |
| Takuma | Kujira II Front Wing Kujira II 800 | 800 | +0.0% | 7.70 | +6.9% | 784 | C2 Mid-low aspect |
| ENSIS | INFINITY ACE Front Wing 840 | 840 | +5.0% | 7.50 | +4.2% | 795 | C2 Mid-low aspect |
| Family | Aero Free |
|---|---|
| Size | 800 |
| Area, cm² | 800 |
| Area basis | unknown |
| Span, mm | 780 |
| Chord, mm | — |
| Aspect ratio | 7.20 |
| Band | C2 Mid-low aspect |
| Brand files it under | All-round / freeride |
| Disciplines | wing |
| Construction | SLS |
| Model year | 2024 |
| Source | manufacturer |
The brand publishes this aspect ratio, but its own span and area (span² ÷ area) give a figure 5–10% away. The published number is kept and marked.
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.