North Sonar HA1050 HA1050 hydrofoil front wing: 1,050 cm², 1,050 mm span, aspect ratio 10.50, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from North'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 |
|---|---|---|---|---|---|---|---|
| Takoon | Flow Front Wing 1050 | 1,050 | +0.0% | 10.50 | +0.0% | 1,050 | C4 High aspect |
| RRD | Dynamic Pro Flying Fish Front Wing Y31 1050 | 1,050 | +0.0% | 10.70 | +1.9% | 1,060 | C4 High aspect |
| GONG | Veloce Free Fly (FF) V3 Atmo L | 1,040 | -1.0% | 10.60 | +1.0% | 1,050 | C4 High aspect |
| GONG | Veloce V3 Atmo L | 1,040 | -1.0% | 10.10 | -3.8% | 1,030 | C4 High aspect |
| Omen | Agent 1100 Agent 1100 | 1,100 | +4.8% | 10.40 | -1.0% | 1,070 | C4 High aspect |
| Sabfoil | Razor PRO 1075 Razor PRO 1075 | 1,061 | +1.0% | 11.00 | +4.8% | 1,075 | C4 High aspect |
| Sabfoil | Blackbird Razor 1077 Blackbird Razor 1077 | 1,069 | +1.8% | 11.00 | +4.8% | 1,077 | C4 High aspect |
| Axis | ART (AXIS Research Team) ART 999 | 1,038 | -1.1% | 9.90 | -5.7% | 999 | C4 High aspect |
| Axis | ART v2 ART v2 999 | 1,038 | -1.1% | 9.90 | -5.7% | 1,000 | C4 High aspect |
| Duotone | Glide 2.0 SLS 1100 | 1,100 | +4.8% | 10.20 | -2.9% | 1,060 | C4 High aspect |
| AFS | Enduro Front Wing Enduro 1100 | 1,100 | +4.8% | 11.00 | +4.8% | 1,100 | C4 High aspect |
| AFS | Enduro Front Wing Enduro 1000 | 1,000 | -4.8% | 11.00 | +4.8% | 1,050 | C4 High aspect |
| Slingshot | One-Lock Flow 1000 | 1,000 | -4.8% | 11.00 | +4.8% | 1,049 | C4 High aspect |
| Family | Sonar HA (High Aspect / Speed) |
|---|---|
| Size | HA1050 |
| Area, cm² | 1,050 |
| Area basis | unknown |
| Span, mm | 1,050 |
| Chord, mm | — |
| Aspect ratio | 10.50 |
| Band | C4 High aspect |
| Brand files it under | Glide / high aspect |
| Disciplines | wing, race, kite, prone, tow, downwind |
| Construction | carbon pre-preg |
| 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 North 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.