| 摘要 |
A rotor blade 102, especially for a wind or water current turbine, has a skin 104 which defines an outer shape, having a root portion 106, a tip portion 108 and leading and trailing surfaces 116, 118 extending between the root and tip. The skin defines an inner void 120 in which is located a support structure 122 in the form of a plurality of support webs 126 spanning between the leading and trailing surfaces and extending substantially longitudinally from the root to the tip. Preferably the support webs are beams with leading and trailing surface flanges, such as I or C section beams. At the root of the blade there may be a pair of apertures extending through the leading and trailing surfaces for a securing component. A support tube for receiving the securing component may span the thickness between the apertures and may pass through an enlargement in a support web.
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