| 摘要 |
<p>A fan blade comprising a root end a blade region and a transition region. Wherein each of the root end and blade region comprise a unique profile and wherein the transition region comprises a profile which transitions the root end profile to the blade region profile. The root end profile comprises a substantially convex top surface a substantially concave domed sector and reliefs to allow for the root end to be coupled with a similarly shaped fan hub extrusion. The blade region profile comprises a substantially convex top surface and bottom surface which terminate at a leading edge and trailing edge. The blade region slopes upward along a length of the blade region and terminates at a curved tip.</p> |
