F-One, 2026

Rocket Free Downwind Carbon

2134mm long · 7'0"

508mm wide

147mm thick

104litres

Open in Studio See it on f-one.world

Sizes & Numbers

Listed by the brand, read off a photo, or worked out: where every number comes from

In one line

More tail than most. A square tail, a medium nose and gently curved rails.

derived · against the 66 other downwind foil boards in the atlas, read off the outlines.

As listed by F-One

F-One Rocket Free Downwind Carbon: every size as listed by F-One
size	length	width	thickness	weight
85 L	193.0 cm · 1930 mm	483 mm	140 mm	5.1 kg
95 L	203.2 cm · 2032 mm	495 mm	142 mm	5.4 kg
104 L	213.4 cm · 2134 mm	508 mm	147 mm	5.7 kg
114 L	223.5 cm · 2235 mm	521 mm	150 mm	6 kg
124 L	233.7 cm · 2337 mm	533 mm	152 mm	6.3 kg

Every size side by side, tails on one line, one scale

Next to your board?

Lay the F-One Rocket Free Downwind 104 L over up to four others, at one scale.

Compare with…

Shape & Rocker

From above, then from the side, true scale · the chosen size solid, the others dashed

Read off the 85 L outline · derived

53 %wide point, 1022 mm from the tail

4.00length over width

370mm wide 12″ from the tail

7,563cm² of planform

Read off the 95 L outline · derived

53 %wide point, 1076 mm from the tail

4.11length over width

373mm wide 12″ from the tail

8,161cm² of planform

Read off the 104 L outline · derived

53 %wide point, 1130 mm from the tail

4.22length over width

375mm wide 12″ from the tail

8,752cm² of planform

Read off the 114 L outline · derived

53 %wide point, 1183 mm from the tail

4.29length over width

381mm wide 12″ from the tail

9,447cm² of planform

Read off the 124 L outline · derived

53 %wide point, 1237 mm from the tail

4.38length over width

384mm wide 12″ from the tail

10,106cm² of planform

Rocker of the 85 L · scaled from the 104 L measured

50 mmtail rocker, at the tip

10 mm12″ from the tail

36 mm12″ from the nose

122 mmnose rocker, at the tip

578 mmflat to within 3 mm, from 31 % to 61 % of the length

48 %of the length to the lowest point, from the tail

139 mmat its thickest, 68 % from the tail

21 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 95 L · scaled from the 104 L measured

52 mmtail rocker, at the tip

11 mm12″ from the tail

41 mm12″ from the nose

129 mmnose rocker, at the tip

595 mmflat to within 3 mm, from 31 % to 60 % of the length

48 %of the length to the lowest point, from the tail

141 mmat its thickest, 68 % from the tail

22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 104 L · measured

55 mmtail rocker, at the tip

14 mm12″ from the tail

45 mm12″ from the nose

136 mmnose rocker, at the tip

611 mmflat to within 3 mm, from 32 % to 60 % of the length

48 %of the length to the lowest point, from the tail

146 mmat its thickest, 68 % from the tail

23 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 114 L · scaled from the 104 L measured

58 mmtail rocker, at the tip

19 mm12″ from the tail

50 mm12″ from the nose

143 mmnose rocker, at the tip

626 mmflat to within 3 mm, from 32 % to 60 % of the length

48 %of the length to the lowest point, from the tail

149 mmat its thickest, 68 % from the tail

24 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 124 L · scaled from the 104 L measured

61 mmtail rocker, at the tip

23 mm12″ from the tail

55 mm12″ from the nose

149 mmnose rocker, at the tip

641 mmflat to within 3 mm, from 32 % to 60 % of the length

48 %of the length to the lowest point, from the tail

151 mmat its thickest, 68 % from the tail

25 mmlonger along the bottom curve than flat

Lay this rocker over other boards

True proportions · dots at 10 mm and 12″ in from each tip · bracket: flat to within 3 mm · Measured on F-One's photo of the 104 L. Tail end set by Claude, not checked by a person.