North Sonar P1800 P1800 hydrofoil front wing: 1,800 cm², 1,300 mm span, aspect ratio 9.40, 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 | Pump One Front Wing 1800 | 1,800 | +0.0% | 9.25 | -1.6% | 1,290 | C3 Mid aspect |
| Code Foils | S Series Front Wing 1725S | 1,725 | -4.2% | 9.50 | +1.1% | 1,280 | C3 Mid aspect |
| ENSIS | STRIDE ACE Front Wing 1740 | 1,740 | -3.3% | 9.10 | -3.2% | 1,260 | C3 Mid aspect |
| Armstrong | APF (All-round Pump Foil) APF1880 | 1,880 | +4.4% | 9.20 | -2.1% | 1,302 | C3 Mid aspect |
| Code Foils | Kanga Series Front Wing 1870 | 1,870 | +3.9% | 9.10 | -3.2% | 1,300 | C3 Mid aspect |
| Sabfoil | Leviathan 1350 Leviathan 1350 | 1,870 | +3.9% | 9.75 | +3.7% | 1,350 | C4 High aspect |
| Sabfoil | Leviathan Blackbird The 1350 Leviathan Blackbird "The 1350" | 1,864 | +3.6% | 9.80 | +4.3% | 1,350 | C4 High aspect |
| Axis | PNG (Pump and Glide) PNG 1300 | 1,712 | -4.9% | 9.94 | +5.7% | 1,300 | C4 High aspect |
| Family | Sonar P (Pump Series) |
|---|---|
| Size | P1800 |
| Area, cm² | 1,800 |
| Area basis | unknown |
| Span, mm | 1,300 |
| Chord, mm | — |
| Aspect ratio | 9.40 |
| Band | C3 Mid aspect |
| Brand files it under | Pump / dock |
| Disciplines | pump, sup |
| 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.