Naish Jet HA Front Wing Jet HA 840 hydrofoil front wing: 840 cm², 900 mm span, aspect ratio 9.80, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Naish'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 | ART (AXIS Research Team) ART 899 | 850 | +1.2% | 9.76 | -0.4% | 899 | C4 High aspect |
| North | Sonar HA850 HA850 | 850 | +1.2% | 10.00 | +2.0% | 920 | C4 High aspect |
| Axis | Surge Surge 890 | 835 | -0.6% | 9.50 | -3.1% | 890 | C3 Mid aspect |
| Cabrinha | Fusion H-Series MkII H850 | 850 | +1.2% | 9.53 | -2.8% | 900 | C4 High aspect |
| Code Foils | S Series Front Wing 850S | 850 | +1.2% | 9.50 | -3.1% | 900 | C3 Mid aspect |
| Omen | Operator 850 Operator 850 | 850 | +1.2% | 9.50 | -3.1% | 900 | C3 Mid aspect |
| Cabrinha | Fusion H-Series MkII H800 | 800 | -4.8% | 9.90 | +1.0% | 900 | C4 High aspect |
| Armstrong | HA (High Aspect) HA880 | 880 | +4.8% | 9.68 | -1.2% | 923 | C4 High aspect |
| Unifoil | Progression 125 Progression 125 | 806 | -4.0% | 10.00 | +2.0% | 898 | C4 High aspect |
| Sabfoil | Razor PRO 875 Razor PRO 875 | 843 | +0.4% | 9.20 | -6.1% | 880 | C3 Mid aspect |
| Unifoil | Evolution 135 Evolution 135 | 871 | +3.7% | 9.40 | -4.1% | 903 | C3 Mid aspect |
| Family | Jet HA |
|---|---|
| Size | Jet HA 840 |
| Area, cm² | 840 |
| Area basis | projected |
| Span, mm | 900 |
| Chord, mm | — |
| Aspect ratio | 9.80 |
| Band | C4 High aspect |
| Brand files it under | Glide / high aspect |
| Disciplines | wing, prone, sup, downwind, kite |
| Construction | carbon/glass composite |
| Model year | 2024-2026 |
| 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 Naish 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.