(1) It features three large aerofoil shaped stainless steel pillars rising to a height of 3m.(2) The crimping does not show in the aerofoil - at all.(3) As you move forward, the wing inflates into an aerofoil section above your head.(4) This is an admirable compendium of the mathematical theories of the aerodynamics of aerofoils and wings.(5) Leonardo later realized the inadequacy of the power a man could generate and turned his attention to aerofoils .