Axis Surge Surge 890 hydrofoil front wing: 835 cm², 890 mm span, aspect ratio 9.50, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Axis'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 |
|---|---|---|---|---|---|---|---|
| Code Foils | S Series Front Wing 850S | 850 | +1.8% | 9.50 | +0.0% | 900 | C3 Mid aspect |
| Omen | Operator 850 Operator 850 | 850 | +1.8% | 9.50 | +0.0% | 900 | C3 Mid aspect |
| Cabrinha | Fusion H-Series MkII H850 | 850 | +1.8% | 9.53 | +0.3% | 900 | C4 High aspect |
| Naish | Jet HA Front Wing Jet HA 840 | 840 | +0.6% | 9.80 | +3.2% | 900 | C4 High aspect |
| Sabfoil | Razor PRO 875 Razor PRO 875 | 843 | +1.0% | 9.20 | -3.2% | 880 | C3 Mid aspect |
| Unifoil | Evolution 135 Evolution 135 | 871 | +4.3% | 9.40 | -1.1% | 903 | C3 Mid aspect |
| North | Sonar SF830 SF830 | 830 | -0.6% | 9.00 | -5.3% | 865 | C3 Mid aspect |
| KT Foiling | Nomad 830 Nomad 830 | 830 | -0.6% | 8.90 | -6.3% | 860 | C3 Mid aspect |
| AFS | Silk V2 Front Wing Silk 850 | 850 | +1.8% | 9.00 | -5.3% | 875 | C3 Mid aspect |
| North | Sonar HA850 HA850 | 850 | +1.8% | 10.00 | +5.3% | 920 | C4 High aspect |
| Cabrinha | Fusion H-Series MkII H800 | 800 | -4.2% | 9.90 | +4.2% | 900 | C4 High aspect |
| Slingshot | One-Lock Glide 825 | 825 | -1.2% | 8.80 | -7.4% | 850 | C3 Mid aspect |
| Unifoil | Progression 125 Progression 125 | 806 | -3.5% | 10.00 | +5.3% | 898 | C4 High aspect |
| Sabfoil | Medusa PRO 869 Medusa PRO 869 | 854 | +2.3% | 8.84 | -6.9% | 869 | C3 Mid aspect |
| Duotone | Crest D/LAB 800 | 800 | -4.2% | 9.00 | -5.3% | 850 | C3 Mid aspect |
| GONG | Ypra Slalom V3 Atmo M | 800 | -4.2% | 8.90 | -6.3% | 840 | C3 Mid aspect |
| Family | Surge |
|---|---|
| Size | Surge 890 |
| Area, cm² | 835 |
| Area basis | flat |
| Span, mm | 890 |
| Chord, mm | 125 |
| Aspect ratio | 9.50 |
| Band | C3 Mid aspect |
| Brand files it under | Surf / carve |
| Disciplines | prone, wing, parawing, kite |
| Construction | 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 Axis 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.