Takuma Kujira Helium Front Wing Kujira Helium 1500 hydrofoil front wing: 1,500 cm², 910 mm span, aspect ratio 5.52, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Takuma'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 |
|---|---|---|---|---|---|---|---|
| North | Sonar MA1500v2 MA1500v2 | 1,500 | +0.0% | 5.60 | +1.4% | 920 | C1 Low aspect |
| Naish | Ultra Jet Front Wing Ultra Jet 1450 | 1,450 | -3.3% | 5.50 | -0.4% | 881 | C1 Low aspect |
| Armstrong | S1 (Step 1) S1 1550 | 1,550 | +3.3% | 5.30 | -4.0% | 905 | C1 Low aspect |
| Family | Kujira Helium |
|---|---|
| Size | Kujira Helium 1500 |
| Area, cm² | 1,500 |
| Area basis | unknown |
| Span, mm | 910 |
| Chord, mm | 202 |
| Aspect ratio | 5.52 |
| Band | C1 Low aspect |
| Brand files it under | Entry |
| Disciplines | prone, sup, wing, downwind |
| Construction | carbon composite with helium foam core |
| Model year | 2022-2025 |
| Source | distributor |
The brand's published aspect ratio contradicts its own span and area by more than 10%, so the geometric figure (span² ÷ area) is used instead and the row is filed as a brand data error.
See Takuma 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.