Patent ID: 8789275

Claim:
A method of manufacturing a wind turbine blade having a spar cap disposed between layers constituting an outer skin or disposed on an inner side of the outer skin, the spar cap serving as a main structural member of the blade, the method comprising: forming the spar cap composed of a fiber-reinforced plastic, the spar cap divided into a plurality of spar caps in a blade width direction and formed as separate pieces so that a gap is formed between two neighboring spar caps in the plurality of spar caps; inserting mesh type flow media beneath the plurality of spar caps and in the gap between said two neighboring spar caps in the plurality of spar caps; arranging the plurality of spar caps with the flow media, dry fiber fabrics for layers constituting the outer skin, and a sandwich core member on a mold together; and impregnating with resin the dry fiber fabrics arranged on the mold together with the plurality of spar caps and the sandwich core member, under a vacuum process.