North Sonar HA950 HA950 hydrofoil front wing: 950 cm², 1,000 mm span, aspect ratio 10.60, 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 |
|---|---|---|---|---|---|---|---|
| KT Foiling | Atlas 960 Atlas 960 | 960 | +1.1% | 10.80 | +1.9% | 1,020 | C4 High aspect |
| Sabfoil | Blackbird Razor 977 Blackbird Razor 977 | 953 | +0.3% | 10.20 | -3.8% | 977 | C4 High aspect |
| Naish | Excalibur HA Front Wing Excalibur 944 | 944 | -0.6% | 10.20 | -3.8% | 982 | C4 High aspect |
| Sabfoil | Razor PRO 975 Razor PRO 975 | 942 | -0.8% | 10.20 | -3.8% | 980 | C4 High aspect |
| Lift Foils | 150 High Aspect X Front Wing 150 | 968 | +1.9% | 10.10 | -4.7% | 991 | C4 High aspect |
| Cabrinha | Prestige 905 | 905 | -4.7% | 11.00 | +3.8% | 1,000 | C4 High aspect |
| Family | Sonar HA (High Aspect / Speed) |
|---|---|
| Size | HA950 |
| Area, cm² | 950 |
| Area basis | unknown |
| Span, mm | 1,000 |
| Chord, mm | — |
| Aspect ratio | 10.60 |
| 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.