THE IQFOIL FOIL USES THE “PLUS” CONCEPT.
This new fuselage shifts the front wing forwards and reduces tail wing angle to make it more aligned with the front wing, creating what we call a High Efficiency Foil Geometry (NZ Pat. App. No. 751177). With both wings flying through the water at more parallel angles, you release more speed, you get quicker acceleration and more control.
HIGH EFFICIENCY FOIL GEOMETRY – HOW DOES IT WORK?
In the diagram above, the weight of sailor and sail is producing an anti-clockwise moment. The foil creates an equal and oppd to the front wing for the foil to generate enough total clockwise moment. More tail wing angle = more drag.osite clockwise moment to maintain flight. Since the front wing position is closer to the mast, it has less clockwise leverage.The tail wing therefore needs more angle compare
High Efficiency Foil Geometry
The front wing position is further forward so it has more clockwise leverage. The tail wing doesn’t need to work as hard so it can be set at a lower angle.
When the front wing and tail wing are closely aligned, there is less drag. You fly with more efficiency, more speed and more stability.