GONG Ypra Race V3 540 cm² hydrofoil front wing: 540 cm², 730 mm span, aspect ratio 9.90, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from GONG'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 |
|---|---|---|---|---|---|---|---|
| North | Sonar HA550 HA550 | 550 | +1.9% | 10.00 | +1.0% | 740 | C4 High aspect |
| Takoon | Flash Front Wing 530 | 530 | -1.9% | 9.80 | -1.0% | 720 | C4 High aspect |
| Naish | Excalibur HA Front Wing Excalibur 544 | 544 | +0.7% | 10.20 | +3.0% | 745 | C4 High aspect |
| AFS | Pure Race 560 Pure Race 560 | 560 | +3.7% | 10.00 | +1.0% | 750 | C4 High aspect |
| Naish | Mach-2 Front Wing Mach-2 560 | 560 | +3.7% | 10.04 | +1.4% | 750 | C4 High aspect |
| Cabrinha | Fusion H-Series MkII H550 | 550 | +1.9% | 9.52 | -3.8% | 690 | C4 High aspect |
| North | Sonar SF530 SF530 | 530 | -1.9% | 10.60 | +7.1% | 750 | C4 High aspect |
| Family | Ypra |
|---|---|
| Size | 540 cm² |
| Area, cm² | 540 |
| Area basis | projected |
| Span, mm | 730 |
| Chord, mm | 103 |
| Aspect ratio | 9.90 |
| Band | C4 High aspect |
| Brand files it under | Race / freerace |
| Disciplines | race, kite, wing |
| Construction | Pro Team / Carbon HM |
| Model year | 2025 |
| 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 GONG 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.