| 摘要 |
<p>A blade has a plurality of relatively thick, super critical airfoil sections (110), each section having a parabolic leading edge (115), with a slight camber extending to about the 40% chord, a gradual upper surface pressure recovery region (120) from the 40% chord to the trailing edge (125), and a concave lower surface (130) from the 40% chord to the trailing edge (125) to generate required lift.</p> |
