Kite foil

Armstrong, 2024

WKT Mk I

1090mm long · 3'7"

419mm wide

25mm thick

8.2litres

Open in Studio See it on armstrongfoils.com

Sizes & Numbers

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

In one line

Its width sits further back. A square tail, a full nose and parallel rails.

derived · against the 26 other kite foil boards in the atlas, read off the outlines.

As listed by Armstrong

Armstrong WKT Mk I: every size as listed by Armstrong
sizelengthwidththicknessweight
8.2 L109 cm · 1090 mm419 mm25 mm2.7 kg
9.5 L122 cm · 1220 mm438 mm25 mm2.9 kg
11.5 L137 cm · 1370 mm470 mm25 mm3.4 kg

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

137010900 mm10908.2 L408 w12209.5 L435 w137011.5 L470 w

Next to your board?

Lay the Armstrong WKT 8.2 L over up to four others, at one scale.

Compare with…

Generations

After it · Mk II, 2025

The Mk II 10.5 L is 128 mm shorter and 19 mm narrower than the Mk I 9.5 L; its wide point moved 82 mm toward the tail. Open the Mk II

listed length and width · wide point derived

Mk I 9.5 L over the Mk II 10.5 L, tails aligned, one scale
Mk I 9.5 L Mk II 10.5 L

The Armstrong WKT over time

Shape & Rocker

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

Armstrong WKT Mk I from above and from the side, every size at true scale, tails aligned
Armstrong WKT Mk I from the side, true proportions: the bottom's rocker over a flat table, every size

Read off the 8.2 L outline · derived

49 %wide point, 539 mm from the tail

2.67length over width

386mm wide 12″ from the tail

3,831cm² of planform

Read off the 9.5 L outline · derived

51 %wide point, 620 mm from the tail

2.80length over width

399mm wide 12″ from the tail

4,564cm² of planform

Read off the 11.5 L outline · derived

49 %wide point, 677 mm from the tail

2.92length over width

427mm wide 12″ from the tail

5,546cm² of planform

Rocker of the 8.2 L · scaled from the 9.5 L measured

15 mmtail rocker, at the tip
5 mm12″ from the tail
5 mm12″ from the nose
69 mmnose rocker, at the tip
396 mmflat to within 3 mm, from 32 % to 68 % of the length
44 %of the length to the lowest point, from the tail
36 mmat its thickest, 73 % from the tail
19 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 9.5 L · measured

17 mmtail rocker, at the tip
6 mm12″ from the tail
8 mm12″ from the nose
78 mmnose rocker, at the tip
428 mmflat to within 3 mm, from 32 % to 68 % of the length
44 %of the length to the lowest point, from the tail
36 mmat its thickest, 73 % from the tail · on the photo; Armstrong lists 25 mm
22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 11.5 L · scaled from the 9.5 L measured

19 mmtail rocker, at the tip
7 mm12″ from the tail
13 mm12″ from the nose
89 mmnose rocker, at the tip
464 mmflat to within 3 mm, from 33 % to 67 % of the length
44 %of the length to the lowest point, from the tail
36 mmat its thickest, 73 % from the tail
24 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 9.5 L. Tail end set by Armstrong's photo convention, not checked by a person.

Reviews & Videos

Original pages · 1

Similar Boards

Closest outlines from other models, once stretched to one length and width · derived