Disciplines wing
The Beluga Black Line Y31 has 4 sizes in the current range, from 85 to 135 L. Its slenderness, 2.55, is greater than that of 23% of the 1,895 current boards that publish a length and a width.
Mount is shown beside each board, never matched on.
| Brand | Board | Volume L | Δ volume | Length mm | Δ length | Slenderness | Mount |
|---|---|---|---|---|---|---|---|
| Mistral | Rapide 5'5 Wing Foil hardboard 80L | 80 | -5.9% | 1,650 | +1.2% | — | twin-track |
| Takoon | Glide 5'4 | 90 | +5.9% | 1,625 | -0.3% | 2.51 (-1.4%) | twin-track |
| F-One | ROCKET WING 5'3 | 85 | +0.0% | 1,600 | -1.8% | 2.52 (-1.1%) | twin-track |
| Loco Surfing | Loco Wing HydroFoil Board 5'3 | 85 | +0.0% | 1,600 | -1.8% | — | — |
| Naish | Nimbus 85L 5'3" | 85 | +0.0% | 1,600 | -1.8% | 2.52 (-1.1%) | — |
| Family | Beluga |
|---|---|
| Model | Beluga Black Line Y31 |
| Size, as the brand prints it | 85 |
| Volume, L | 85 |
| Length, mm | 1,630 (5'4") |
| Width, mm | 640 |
| Thickness, mm | — |
| Weight, kg | 5.7 |
| Slenderness (length ÷ width) | 2.55 |
| Slenderness band | 2.5–3.0 |
| Mount | — |
| Strap inserts | yes |
| Build | — |
| Construction | BLACK Line: precision-molded Super EPS core (18 kg/m3), HEXAgonal Innegra Carbon deck (176 g/m2), 110 g biaxial carbon bottom |
| Disciplines | wing |
| Rider weight | — |
| Rider level | — |
| Model year | — |
| Source | manufacturer · read 2026-10-02 |
Every figure above is the manufacturer's published claim, converted to comparable units.