Armstrong MA Mk II (Mid Aspect) MA890 hydrofoil front wing: 890 cm², 860 mm span, aspect ratio 8.00, 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 | X Series Front Wing 890X | 890 | +0.0% | 8.20 | +2.5% | 852 | C2 Mid-low aspect |
| F-One | SK8 HM Carbon (T2) SK8 HM CARBON 850 | 850 | -4.5% | 8.00 | +0.0% | 825 | C2 Mid-low aspect |
| Cabrinha | Whippit 850 | 850 | -4.5% | 8.10 | +1.2% | 830 | C2 Mid-low aspect |
| GONG | Ypra Surf Fast V3 Atmo XL | 920 | +3.4% | 8.20 | +2.5% | 870 | C2 Mid-low aspect |
| GONG | Fluid H V3 FG M | 910 | +2.2% | 8.40 | +5.0% | 870 | C2 Mid-low aspect |
| Takoon | Flare Front Wing 850 | 850 | -4.5% | 8.30 | +3.8% | 840 | C2 Mid-low aspect |
| GONG | Curve H V3 FG M | 920 | +3.4% | 8.40 | +5.0% | 880 | C2 Mid-low aspect |
| KT Foiling | Instinct 920 Instinct 920 | 920 | +3.4% | 8.41 | +5.1% | 880 | C2 Mid-low aspect |
| Family | MA Mk II |
|---|---|
| Size | MA890 |
| Area, cm² | 890 |
| Area basis | unknown |
| Span, mm | 860 |
| Chord, mm | — |
| Aspect ratio | 8.00 |
| Band | C2 Mid-low aspect |
| Brand files it under | Surf / carve |
| 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.
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.