Armstrong S1 (Step 1) 1250
- 1,250area, cm²
- 848span, mm
- 5.70aspect ratio
- Lowaspect · AR ≤ 6.0
Family S1 Brand’s category Entry Disciplines wing, prone carbon · 2025-2026
The closest current wings from other brands — every one within ±5% of area and ±8% of aspect ratio, ranked closest first. The closest, the Naish Ultra Jet Front Wing 1250, is already drawn over it. Select a numbered wing to draw it — up to three at a time.
The S1 runs 4 sizes, 1,250–2,450 cm²; aspect ratio moves 4.8–5.7 across the range.
Its 848 mm span is 18% narrower than typical for the area — the median across the 109 current wings within 10% of its size is 1,035 mm.
Closest wings from other brands
Projected and flat area run 3–8% apart. A marked area is one whose brand does not state which it publishes, so a comparison inside the area tolerance may be comparing unlike figures.
| Brand | Wing | Area cm² | Δ area | Aspect ratio | Δ AR | Span mm | Band |
|---|---|---|---|---|---|---|---|
| Naish | Ultra Jet Front Wing 1250 | 1,250 | +0.0% | 5.60 | -1.8% | 835 | Low aspect |
| F-One | PHANTOM Carbon 1280 | 1,280 | +2.4% | 5.90 | +3.5% | 870 | Low aspect |
| ENSIS | PACER Front Wing 1250 | 1,250 | +0.0% | 6.00 | +5.3% | 864 | Low aspect |
| Lift Foils | 200 Surf V2 Front Wing | 1,290 | +3.2% | 5.40 | -5.3% | 826 | Low aspect |
| RRD | Blaze LTE Front Wing Y30 1250 | 1,250 | +0.0% | 6.00 | +5.3% | 865 | Low aspect |
| Takuma | Kujira Helium Front Wing 1200 | 1,200 | -4.0% | 5.50 | -3.5% | 815 | Low aspect |
| Axis | SP (Surf Performance) 860 | 1,293 | +3.4% | 6.10 | +7.0% | 860 | Mid-low aspect |
| Cabrinha | Fusion X-Series MkII X1240 | 1,240 | -0.8% | 6.10 | +7.0% | 870 | Mid-low aspect |
| Lift Foils | 200 Havoc LCS Front Wing | 1,290 | +3.2% | 6.10 | +7.0% | 889 | Mid-low aspect |
| Slingshot | One-Lock Ease 1250 | 1,250 | +0.0% | 5.30 | -7.0% | 817 | Low aspect |
Specifications
| Family | S1 |
|---|---|
| Size | S1 1250 |
| Area, cm² | 1,250 |
| Area basis | unknown |
| Span, mm | 848 |
| Chord, mm | — |
| Aspect ratio | 5.70 |
| Band | Low aspect |
| Brand’s category | Entry |
| Disciplines | wing, prone |
| Construction | carbon |
| 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.
Data current to August 2026. Every figure above is the manufacturer's published claim, converted to comparable units.