2.6 m "3.0 m" Wing, Armstrong XPS MKI

Kmun · Since 05 Jul 2009 283 Posts Obsessed

2.6 m "3.0 m" Wing, Armstrong XPS MKI

Rigid handles
Great condition, no holes or repairs
About three or four sessions since it was purchased as new.

Note: When compared to other leading brands or the Armstrong XPS MKII, this model is one step more powerful than it's printed size. It has similar power to a 3.0m Duotone Unit or a 3.0m Armstrong MK II.

Note: The original bag is not included as it disappeared on its first use. I will instead included Cabrinha bag.
Just as the printing states on the Duotone Units, this 2.6m Armstrong wing handles more comfortably with a reduced pressure in the leading edge.

In most cases for the Gorge & La Ventana, I set the leading edge pressure to 15% of maximum pressures printed on all of my Armstrong & Slingshot wings.

IWantToFly · Since 29 Jul 2019 162 Posts Stoked

15%??? So if the wing recommends 9 psi you pump to 1.35 psi? Do you perhaps mean 15% less than max or 85% of max pressure?

Kmun · Since 05 Jul 2009 283 Posts Obsessed

This 15% reduction is what I found most effective in having the wing behave better when it gets over powered in gusts. Most applicable on my 2.5 m -3.5m especially in cold, dense air, power punchy days. I use full pressure in larger sizes than 4.0m.
This reduction is most important in small body weight sailors that will not be able to load a wing back enough to effectively deform it enough & so that it will deliver power in a progressive manner.
Full pressure (max pressure) can be punchy all or nothing power delivery. A big guy holding a full pressure wing will have a different/more compliant wing behavior than a small person holding the same wing who in contrast will be getting thrown around by the wing.