RRD Universal Mantaray Front Wing Y30 850 hydrofoil front wing: 850 cm², 760 mm span, aspect ratio 6.70, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from RRD'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 |
|---|---|---|---|---|---|---|---|
| F-One | PHANTOM S Carbon PHANTOM-S 840 | 840 | -1.2% | 6.50 | -3.0% | 740 | C2 Mid-low aspect |
| GONG | X-Over V3 M | 850 | +0.0% | 6.40 | -4.5% | 740 | C2 Mid-low aspect |
| GONG | Ascent V3 M | 870 | +2.4% | 7.00 | +4.5% | 780 | C2 Mid-low aspect |
| Axis | BSC (Broad Spectrum Carve) BSC 740 | 883 | +3.9% | 6.49 | -3.1% | 740 | C2 Mid-low aspect |
| Naish | Ultra Jet Front Wing Ultra Jet 850 | 850 | +0.0% | 6.20 | -7.5% | 725 | C2 Mid-low aspect |
| North | Sonar MA850v2 MA850v2 | 850 | +0.0% | 7.20 | +7.5% | 780 | C2 Mid-low aspect |
| Axis | Spitfire Spitfire 720 | 815 | -4.1% | 6.47 | -3.4% | 720 | C2 Mid-low aspect |
| Family | UNIVERSAL MANTARAY |
|---|---|
| Size | 850 |
| Area, cm² | 850 |
| Area basis | unknown |
| Span, mm | 760 |
| Chord, mm | — |
| Aspect ratio | 6.70 |
| Band | C2 Mid-low aspect |
| Brand files it under | All-round / freeride |
| Disciplines | wing, prone |
| Construction | Full Carbon |
| Model year | — |
| 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 RRD 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.