Firewire Seaside Helium
Surf › Swallow tail
Naish, 2024
1575mm long · 5'2"
457mm wide
51mm thick
25litres
Listed by the brand, read off a photo, or worked out: where every number comes from
In one line
A finer nose than most. A swallow tail, a pointed nose and gently curved rails.
derived · against the 59 other kite surf boards in the atlas, read off the outlines.
As listed by Naish
| size | length | width | thickness | weight |
|---|---|---|---|---|
| 25 L | 157.5 cm · 1575 mm | 457 mm | 51 mm · estimated | 3.2 kg |
| 28 L | 167.6 cm · 1676 mm | 483 mm | 51 mm · estimated | 3.3 kg |
Every size side by side, tails on one line, one scale
After it · 2025
The 2025 25 L is 19 mm wider than the 2024 25 L, same length; its wide point moved 12 mm toward the tail. Open the 2025
listed length and width · wide point derived
From above, then from the side, true scale · the chosen size solid, the others dashed
Read off the 25 L outline · derived
52 %wide point, 811 mm from the tail
3.44length over width
368mm wide 12″ from the tail
5,653cm² of planform
Read off the 28 L outline · derived
52 %wide point, 863 mm from the tail
3.47length over width
381mm wide 12″ from the tail
6,350cm² of planform
Rocker of the 25 L · measured
Rocker of the 28 L · scaled from the 25 L measured
True proportions · dots at 10 mm and 12″ in from each tip · bracket: flat to within 3 mm · Measured on Naish's photo of the 25 L. Tail end set by Naish's photo convention, not checked by a person.
Original pages · 1
Closest outlines from other models, once stretched to one length and width · derived
Surf › Swallow tail
Kite › Kite surf
Kite › Kite surf
Surf › SUP
Surf › SUP
Kite › Kite surf
Surf › SUP
Windsurf › Windsurf
Foil › Wing
Surf › Swallow tail