Armstrong Wing FG 40L 4'4

40volume, L
1,321length, mm
470width, mm
2.81slenderness

Build hard Disciplines wing

The Wing FG has 10 sizes in the current range, from 34 to 135 L. Its slenderness, 2.81, is greater than that of 41% of the 1,895 current boards that publish a length and a width.

Closest boards from other brands

Mount is shown beside each board, never matched on.

Current boards from other brands within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width of the Armstrong Wing FG 40L 4'4, closest first.
Brand	Board	Volume L	Δ volume	Length mm	Δ length	Slenderness	Mount
KT Foiling	Drifter Surf Carbon 38	38	-5.0%	1,346	+1.9%	2.86 (+1.9%)	twin-track
PPC Foiling	Prone Surf Board 4'5 x 19'8" 38L	38	-5.0%	1,346	+1.9%	—	—

Specifications

Every figure is Armstrong's own, read from the source linked in the last row, converted to millimetres and kilograms where the brand prints inches or pounds. Slenderness is computed here, length ÷ width.
Family	Wing
Model	Wing FG
Size, as the brand prints it	40L 4'4
Volume, L	40
Length, mm	1,321 (4'4")
Width, mm	470
Thickness, mm	95
Weight, kg	—
Slenderness (length ÷ width)	2.81
Slenderness band	2.5–3.0
Mount	—
Strap inserts	yes
Build	hard
Construction	dual i-beam carbon stringers, carbon fiber foil tracks
Disciplines	wing
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.

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