Disciplines wing, parawing, downwind, sup
The Beluga FL Black Line Y31 has 5 sizes in the current range, from 95 to 145 L. Its slenderness, 3.67, is greater than that of 80% 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 |
|---|---|---|---|---|---|---|---|
| Armstrong | Midlength Mk II X-Form 115L 6'11'' | 115 | +0.0% | 2,108 | -1.0% | 3.65 (-0.7%) | — |
| JP Australia | M-Winger 120 | 120 | +4.3% | 2,130 | +0.0% | 3.67 (+0.0%) | twin-track |
| Takoon | Ultra Glide 7'0 | 120 | +4.3% | 2,134 | +0.2% | 3.69 (+0.5%) | twin-track |
| Family | Beluga FL |
|---|---|
| Model | Beluga FL Black Line Y31 |
| Size, as the brand prints it | 115 |
| Volume, L | 115 |
| Length, mm | 2,130 (7'0") |
| Width, mm | 580 |
| Thickness, mm | — |
| Weight, kg | 6.76 |
| Slenderness (length ÷ width) | 3.67 |
| Slenderness band | 3.0–4.0 |
| 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, parawing, downwind, sup |
| 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.