GONG Ypra Race V3 670 cm² hydrofoil front wing: 670 cm², 820 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 |
|---|---|---|---|---|---|---|---|
| Armstrong | HA (High Aspect) HA680 | 680 | +1.5% | 10.00 | +1.0% | 828 | C4 High aspect |
| Takoon | Flash Front Wing 680 | 680 | +1.5% | 9.80 | -1.0% | 815 | C4 High aspect |
| Axis | ART v2 ART v2 819 | 647 | -3.4% | 9.98 | +0.8% | 820 | C4 High aspect |
| North | Sonar HA650 HA650 | 650 | -3.0% | 10.10 | +2.0% | 810 | C4 High aspect |
| F-One | EAGLE HM Carbon EAGLE 690 | 690 | +3.0% | 9.70 | -2.0% | 820 | C4 High aspect |
| Omen | Agent 700 Agent 700 | 700 | +4.5% | 10.10 | +2.0% | 843 | C4 High aspect |
| Duotone | Crest D/LAB 675 | 675 | +0.7% | 9.30 | -6.1% | 790 | C3 Mid aspect |
| Naish | Jet HA Front Wing Jet HA 640 | 640 | -4.5% | 10.20 | +3.0% | 810 | C4 High aspect |
| AFS | Pure Fuselink Foil (monobloc front wing + fuselage) Pure 700 | 700 | +4.5% | 9.60 | -3.0% | 820 | C4 High aspect |
| Axis | Surge Surge 780 | 643 | -4.0% | 9.48 | -4.2% | 780 | C3 Mid aspect |
| KT Foiling | Atlas 680 Atlas 680 | 680 | +1.5% | 10.60 | +7.1% | 850 | C4 High aspect |
| North | Sonar SF680 SF680 | 680 | +1.5% | 9.20 | -7.1% | 790 | C3 Mid aspect |
| Cabrinha | Fusion H-Series MkII H700 | 700 | +4.5% | 9.49 | -4.1% | 815 | C3 Mid aspect |
| Unifoil | Progression 100 Progression 100 | 645 | -3.7% | 10.50 | +6.1% | 824 | C4 High aspect |
| Family | Ypra |
|---|---|
| Size | 670 cm² |
| Area, cm² | 670 |
| Area basis | projected |
| Span, mm | 820 |
| Chord, mm | 115 |
| 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.