
Family Sonar SF (Surf Series) Brand’s category Surf / carve Disciplines prone, wing, downwind, pump, wake carbon pre-preg · 2026
The Sonar SF runs 6 sizes, 530–1,230 cm², and changes proportion as it grows: aspect ratio runs 7.1 at one end of the range to 10.6 at the other, so its sizes differ in shape as well as in area.
Its 915 mm span is 8% narrower than typical for the area — the median across the 109 current wings within 10% of its size is 999 mm.
Projected and flat area run 3–8% apart. A marked area is one whose brand does not state which it publishes, so a comparison inside the area tolerance may be comparing unlike figures.
| Brand | Wing | Area cm² | Δ area | Aspect ratio | Δ AR | Span mm | Band |
|---|---|---|---|---|---|---|---|
| F-One | SEVEN SEAS Carbon 1100 | 1,100 | +1.9% | 8.00 | +2.6% | 940 | Mid-low aspect |
| Takuma | Kujira II Front Wing 1100 | 1,100 | +1.9% | 8.00 | +2.6% | 938 | Mid-low aspect |
| F-One | SK8 HM Carbon (T2) 1050 | 1,050 | -2.8% | 8.00 | +2.6% | 915 | Mid-low aspect |
| Omen | Operator 1050 | 1,050 | -2.8% | 7.70 | -1.3% | 900 | Mid-low aspect |
| Code Foils | X Series Front Wing 1085X | 1,085 | +0.5% | 8.20 | +5.1% | 940 | Mid-low aspect |
| Unifoil | Aggression 170 | 1,096 | +1.5% | 8.20 | +5.1% | 950 | Mid-low aspect |
| Unifoil | Progression 170 | 1,097 | +1.6% | 8.30 | +6.4% | 953 | Mid-low aspect |
| Axis | Spitfire 900 | 1,099 | +1.8% | 7.25 | -7.1% | 900 | Mid-low aspect |
| Takoon | X-Glide V2 Front Wing 1050 | 1,050 | -2.8% | 7.20 | -7.7% | 870 | Mid-low aspect |
| GONG | Curve H V3 FG L | 1,070 | -0.9% | 8.40 | +7.7% | 950 | Mid-low aspect |
| KT Foiling | Instinct 1120 | 1,120 | +3.7% | 8.40 | +7.7% | 971 | Mid-low aspect |
| Family | Sonar SF (Surf Series) |
|---|---|
| Size | SF1080 |
| Area, cm² | 1,080 |
| Area basis | unknown |
| Span, mm | 915 |
| Chord, mm | — |
| Aspect ratio | 7.80 |
| Band | Mid-low aspect |
| Brand’s category | Surf / carve |
| Disciplines | prone, wing, downwind, pump, wake |
| 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.
Data current to August 2026. Every figure above is the manufacturer's published claim, converted to comparable units.