Armstrong DWP (Downwind Performance) DWP685 hydrofoil front wing: 685 cm², 960 mm span, aspect ratio 13.55, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Armstrong'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 |
|---|---|---|---|---|---|---|---|
| Code Foils | R Series Front Wing 680R | 680 | -0.7% | 13.00 | -4.1% | 935 | C5 Very high aspect |
| Unifoil | Quest 110 Quest 110 | 709 | +3.5% | 13.30 | -1.8% | 970 | C5 Very high aspect |
| Axis | Fireball ULTRA Fireball 940 | 689 | +0.6% | 12.84 | -5.2% | 940 | C5 Very high aspect |
| Lift Foils | Florence 110 X Front Wing 110 | 710 | +3.6% | 13.10 | -3.3% | 965 | C5 Very high aspect |
| Duotone | Hyperglide D/LAB 680 | 680 | -0.7% | 14.40 | +6.3% | 1,000 | C5 Very high aspect |
| Family | DWP |
|---|---|
| Size | DWP685 |
| Area, cm² | 685 |
| Area basis | unknown |
| Span, mm | 960 |
| Chord, mm | — |
| Aspect ratio | 13.55 |
| Band | C5 Very high aspect |
| Brand files it under | Downwind |
| Disciplines | downwind |
| 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.
See Armstrong 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.