
Family Sirus Chord 201 mm Brand’s category Pump / dock Disciplines pump, sup, prone, downwind, wing, kite Team / Carbon HM · 2026
No current wing from another brand is within the tolerances; the nearest are drawn instead, ranked closest first. The Duotone Amp SLS 2145 (#1) is already over it. Select a numbered wing to draw it — up to three at a time.
The Sirus V3 Atmo runs 9 sizes, 1,150–2,350 cm², and changes proportion as it grows: aspect ratio runs 9.3 at one end of the range to 15.0 at the other, so its sizes differ in shape as well as in area.
Its 1,610 mm span is 13% wider than typical for the area — the median across the 21 current wings within 10% of its size is 1,430 mm.
No current wing from another brand is within ±5% of area and ±8% of aspect ratio of this one.
None of these is within the tolerances above — each misses on area, on aspect ratio, or on both, by up to 1.9× the tolerance.
| Brand | Wing | Area cm² | Δ area | Aspect ratio | Δ AR | Span mm | Band |
|---|---|---|---|---|---|---|---|
| Duotone | Amp SLS 2145 | 2,145 | -8.7% | 9.60 | -12.7% | 1,430 | High aspect |
| Sabfoil | Leviathan 1550 | 2,140 | -8.9% | 11.30 | +2.7% | 1,550 | High aspect |
| Sabfoil | Leviathan 1750 | 2,400 | +2.1% | 12.70 | +15.5% | 1,750 | Very high aspect |
| Family | Sirus |
|---|---|
| Size | 3XL |
| Area, cm² | 2,350 |
| Area basis | unknown |
| Span, mm | 1,610 |
| Chord, mm | 201 |
| Aspect ratio | 11.00 |
| Band | High aspect |
| Brand’s category | Pump / dock |
| Disciplines | pump, sup, prone, downwind, wing, kite |
| Construction | Team / Carbon HM |
| 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.
Data current to August 2026. Every figure above is the manufacturer's published claim, converted to comparable units.