F-One EAGLE X UHM Carbon EAGLE X 900 hydrofoil front wing: 900 cm², 1,040 mm span, aspect ratio 12.00, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from F-One'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 |
|---|---|---|---|---|---|---|---|
| Axis | ART PRO ART PRO 1051 | 932 | +3.6% | 12.05 | +0.4% | 1,051 | C5 Very high aspect |
| GONG | Veloce Light Wind (LW) V3 Atmo M | 900 | +0.0% | 12.70 | +5.8% | 1,070 | C5 Very high aspect |
| Armstrong | UHA (Ultra High Aspect) UHA870 | 870 | -3.3% | 12.60 | +5.0% | 1,047 | C5 Very high aspect |
| Family | Eagle X |
|---|---|
| Size | EAGLE X 900 |
| Area, cm² | 900 |
| Area basis | unknown |
| Span, mm | 1,040 |
| Chord, mm | — |
| Aspect ratio | 12.00 |
| Band | C5 Very high aspect |
| Brand files it under | Downwind |
| Disciplines | downwind, wing, sup |
| Construction | UHM carbon |
| 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.
See F-One 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.