Abstract: The invention relates to a method for manufacturing wind turbine blades, blades for propellers, wings or similar structures, and to a structure in the shape of a blade produced by means of said method, including: use a female mold of the leading edge (5), a female mold of the trailing edge (6), and a third mold (7) for a composite male tool (8) as a lost mold for manufacturing at least an inner crossbeam (4); wherein a demolding agent and an outer protective varnish is applied on the inner sides by robot or a digitally-controlled device; applying prepreg in superimposed layers; coating the prepreg with a vaccum film, and connecting to a pump for extracting air from between the prepreg layers; fitting together the molds and positioning the pieces with the prepreg laminates; and applying pressure and thermal curve for the method of curing or polymerizing the set of pieces in a single stage or all at once.

Abstract: The invention relates to a method for the manufacture of wind vanes, consisting of: formation of a single foam core (2), with numerical control machines, application of reinforcing layers (3) pre-impregnated with resin (4), curing of the layers (3) as part of the application process itself by means of UV (ultraviolet) instant curing and thermal curing, polishing of the vane surface, also by use of an automatic numerical control machine, and final painting. Alternatively, the core is made using a mould, is a single piece or two shells (2a) and (2b) which are subsequently joined with adhesive, is solid or, at least in the root thereof, hollow, or formed by two solid or lightened shells and can contain a central inner tube (6) made of composite as a rigidizing element, and other smaller tubes (7) inside the leading and trailing edges.