One thing I'd like to learn is how to tell wether a area is stream wise, I've always thought it's critical angle but I'm not sure. I've always gone off the basis of a 90 degree angle being stream wise but I don't think that's it. We can. Have this massive SRH Helicity but unless it's gone streamwise than I've heard its not at it's full potential.
*Found a video to explain it some*
*Found a video to explain it some*
Last edited: