F-One EAGLE X UHM Carbon EAGLE X 600 hydrofoil front wing: 600 cm², 850 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 | Fireball ULTRA Fireball 880 | 604 | +0.7% | 12.82 | +6.8% | 880 | C5 Very high aspect |
| Lift Foils | 90 Vario Front Wing 90 | 581 | -3.2% | 11.40 | -5.0% | 813 | C4 High aspect |
| Axis | ART PRO ART PRO 801 | 582 | -3.0% | 11.17 | -6.9% | 801 | C4 High aspect |
| Armstrong | UHA (Ultra High Aspect) UHA570 | 570 | -5.0% | 12.60 | +5.0% | 847 | C5 Very high aspect |
| Family | Eagle X |
|---|---|
| Size | EAGLE X 600 |
| Area, cm² | 600 |
| Area basis | unknown |
| Span, mm | 850 |
| 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.