Armstrong, 2024

Downwind Mk II (Downwind FG)

2261mm long · 7'5"

508mm wide

146mm thick

106litres

Open in Studio The Armstrong page, archived Also atposeidon-watersports.com

Sizes & Numbers

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 pin 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 Armstrong (archived page)

Armstrong Downwind Mk II (Downwind FG): every size as listed by Armstrong
size	length	width	thickness	weight
96 L	7'2 · 2184 mm	495 mm	140 mm · medium confidence	5.9 kg
106 L	7’5 · 2261 mm	508 mm	146 mm · medium confidence	–
116 L	7'9 · 2362 mm	514 mm	152 mm · estimated	6.7 kg
128 L	8’1 · 2464 mm	527 mm	152 mm · medium confidence	–
140 L	8’5 · 2565 mm	552 mm	152 mm · medium confidence	–

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

Next to your board?

Lay the Armstrong Downwind 106 L over up to four others, at one scale.

Compare with…

Generations

After it · Mk III, 2025

The Mk III 115 L is 51 mm shorter and 38 mm narrower than the Mk II (Downwind FG) 116 L; its wide point moved 78 mm toward the tail. Open the Mk III

listed length and width · wide point derived

Mk II (Downwind FG) 116 L Mk III 115 L

The Armstrong Downwind over time

Shape & Rocker

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

Read off the 96 L outline · derived

53 %wide point, 1157 mm from the tail

4.41length over width

341mm wide 12″ from the tail

8,434cm² of planform

Read off the 106 L outline · derived

53 %wide point, 1198 mm from the tail

4.44length over width

345mm wide 12″ from the tail

8,970cm² of planform

Read off the 116 L outline · derived

53 %wide point, 1252 mm from the tail

4.59length over width

342mm wide 12″ from the tail

9,473cm² of planform

Read off the 128 L outline · derived

53 %wide point, 1305 mm from the tail

4.67length over width

344mm wide 12″ from the tail

10,124cm² of planform

Read off the 140 L outline · derived

53 %wide point, 1359 mm from the tail

4.64length over width

354mm wide 12″ from the tail

11,050cm² of planform

Rocker of the 96 L · scaled from the 106 L measured

72 mmtail rocker, at the tip

17 mm12″ from the tail

47 mm12″ from the nose

143 mmnose rocker, at the tip

837 mmflat to within 3 mm, from 24 % to 63 % of the length

32 %of the length to the lowest point, from the tail

156 mmat its thickest, 60 % from the tail

40 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 106 L · measured

74 mmtail rocker, at the tip

18 mm12″ from the tail

50 mm12″ from the nose

149 mmnose rocker, at the tip

861 mmflat to within 3 mm, from 24 % to 62 % of the length

32 %of the length to the lowest point, from the tail

163 mmat its thickest, 60 % from the tail · on the photo; Armstrong lists 146 mm

41 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 116 L · scaled from the 106 L measured

78 mmtail rocker, at the tip

20 mm12″ from the tail

55 mm12″ from the nose

156 mmnose rocker, at the tip

890 mmflat to within 3 mm, from 24 % to 62 % of the length

32 %of the length to the lowest point, from the tail

170 mmat its thickest, 60 % from the tail

43 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 128 L · scaled from the 106 L measured

82 mmtail rocker, at the tip

22 mm12″ from the tail

60 mm12″ from the nose

163 mmnose rocker, at the tip

918 mmflat to within 3 mm, from 25 % to 62 % of the length

32 %of the length to the lowest point, from the tail

170 mmat its thickest, 60 % from the tail

45 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 140 L · scaled from the 106 L measured

85 mmtail rocker, at the tip

24 mm12″ from the tail

65 mm12″ from the nose

170 mmnose rocker, at the tip

946 mmflat to within 3 mm, from 25 % to 62 % of the length

32 %of the length to the lowest point, from the tail

170 mmat its thickest, 60 % from the tail

47 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 Armstrong's photo of the 106 L. Tail end set by Claude, not checked by a person.